{"id":13173,"date":"2025-09-09T07:28:06","date_gmt":"2025-09-09T07:28:06","guid":{"rendered":"https:\/\/zbt.de\/?post_type=news&#038;p=13173"},"modified":"2025-09-09T14:10:34","modified_gmt":"2025-09-09T14:10:34","slug":"graded-catalysts-in-fuel-cells-increased-performance-without-higher-platinum-usage","status":"publish","type":"news","link":"https:\/\/zbt.de\/en\/news\/graded-catalysts-in-fuel-cells-increased-performance-without-higher-platinum-usage\/","title":{"rendered":"Graded Catalysts in Fuel Cells \u2013 Increased Performance Without Higher Platinum Usage"},"content":{"rendered":"<section class=\"intro\">\n    <figure class=\"intro__figure\">\n                              <img loading=\"lazy\" decoding=\"async\" width=\"1084\" height=\"1769\" src=\"https:\/\/zbt.de\/app\/uploads\/2025\/02\/zbt-hydrogen-energy-symposium-2024-caidi.jpg\" class=\"intro__image\" alt=\"Adib Caidi speaks at the Hydrogen Energy Symposium 2024\" srcset=\"https:\/\/zbt.de\/app\/uploads\/2025\/02\/zbt-hydrogen-energy-symposium-2024-caidi.jpg 1084w, https:\/\/zbt.de\/app\/uploads\/2025\/02\/zbt-hydrogen-energy-symposium-2024-caidi-184x300.jpg 184w, https:\/\/zbt.de\/app\/uploads\/2025\/02\/zbt-hydrogen-energy-symposium-2024-caidi-627x1024.jpg 627w, https:\/\/zbt.de\/app\/uploads\/2025\/02\/zbt-hydrogen-energy-symposium-2024-caidi-768x1253.jpg 768w, https:\/\/zbt.de\/app\/uploads\/2025\/02\/zbt-hydrogen-energy-symposium-2024-caidi-941x1536.jpg 941w\" sizes=\"auto, (max-width: 1084px) 100vw, 1084px\" \/>\n        <div class=\"intro__overlay intro__overlay--transparent\">\n                    <\/div>\n            <\/figure>\n    <div class=\"intro__content\">\n        <h1 class=\"intro__heading\">Graded Catalysts in Fuel Cells \u2013 Increased Performance Without Higher Platinum Usage<\/h1>\n        <h4 class=\"intro__subheading\">Open access paper published in Energy Materials: Clever gradient design in catalyst layer makes fuel cells more efficient. Precious metals used only where necessary.<\/h4>\n        <div class=\"intro__text\"><p>One approach to making fuel cells more powerful or more cost-effective, or both, is to <strong>optimise catalyst layers<\/strong>. Adib Caidi (pictured), a doctoral student at ZBT, has now published a study exploring the idea that <strong>gradients in the distribution of platinum, carbon and ionomer<\/strong> in the catalyst layer could<\/p>\n<ul>\n<li>improve catalyst utilisation near the membrane,<\/li>\n<li>improve gas diffusion and water management near the gas diffusion layer,<\/li>\n<li>and balance ion conductivity across the catalyst layer.<\/li>\n<\/ul>\n<p>His motto: <strong>maximum performance with minimum platinum<\/strong>.<\/p>\n<\/div>\n            <\/div>\n<\/section>\n\n\n<section class=\"text-teaser text-teaser--white\">\n  <h2 class=\"text-teaser__heading\"><\/h2>\n  <div class=\"text-teaser__text\"><p>Caidi systematically applied and investigated <strong>various composition gradients<\/strong> on pre-optimised, non-graded catalyst layers. He introduced passivation gradients in the categories of Pt\/C loading, the ionomer-carbon ratio and the ionomer equivalent weight \u2013 both individually and in combination.<\/p>\n<p>Electrochemical impedance spectroscopy was used to reveal the <strong>underlying transport and kinetic effects<\/strong>. \u2018This strategy enabled us to clearly separate the contributions of kinetic, mass transport and ohmic resistance effects,\u2019 explains Caidi.<\/p>\n<h4>Graded catalysts significantly increase performance<\/h4>\n<p>And the effort paid off: the fully graded catalyst ultimately showed a <strong>32% increase in performance<\/strong> at 0.6 V (wet conditions) and a 17% increase at 0.6 V (dry conditions) compared to the pre-optimised reference. These results underscore the critical importance of combining robust base optimisation with a <strong>rational gradient design<\/strong>, which offers a comprehensive path to performance enhancement while <strong>minimising precious metal consumption<\/strong>.<\/p>\n<\/div>\n<\/section>\n\n\n<section class=\"image\">\n        <img loading=\"lazy\" decoding=\"async\" width=\"1427\" height=\"744\" src=\"https:\/\/zbt.de\/app\/uploads\/2025\/09\/grafiken-gradienten-design-in-katalysatoren-fuer-pem-brennstoffzellen.jpg\" class=\"attachment-full size-full\" alt=\"Graphs from a study on gradient design in catalyst layers for PEM fuel cells\" srcset=\"https:\/\/zbt.de\/app\/uploads\/2025\/09\/grafiken-gradienten-design-in-katalysatoren-fuer-pem-brennstoffzellen.jpg 1427w, https:\/\/zbt.de\/app\/uploads\/2025\/09\/grafiken-gradienten-design-in-katalysatoren-fuer-pem-brennstoffzellen-300x156.jpg 300w, https:\/\/zbt.de\/app\/uploads\/2025\/09\/grafiken-gradienten-design-in-katalysatoren-fuer-pem-brennstoffzellen-1024x534.jpg 1024w, https:\/\/zbt.de\/app\/uploads\/2025\/09\/grafiken-gradienten-design-in-katalysatoren-fuer-pem-brennstoffzellen-768x400.jpg 768w, https:\/\/zbt.de\/app\/uploads\/2025\/09\/grafiken-gradienten-design-in-katalysatoren-fuer-pem-brennstoffzellen-1320x688.jpg 1320w\" sizes=\"auto, (max-width: 1427px) 100vw, 1427px\" \/>\n    \n<\/section>\n\n<section class=\"text-teaser text-teaser--white\">\n  <h2 class=\"text-teaser__heading\"><\/h2>\n  <div class=\"text-teaser__text\"><p>These improvements directly address two of the most pressing challenges in fuel cell research: <strong>efficient catalyst utilisation<\/strong> and robust performance under water-limited operating conditions.<\/p>\n<p>The publication is highly relevant to the field of research as it bridges the gap between fundamental electrochemical understanding and practical electrode design strategies. Through the <strong>systematic variation and analysis of gradient concepts<\/strong>, the study provides a blueprint for next-generation PEMFC electrodes and inspires new approaches in materials-oriented development research.<\/p>\n<p>Beyond fuel cells, the methodology of combining base optimisation with gradient engineering can also be applied to <strong>electrolysers<\/strong>, underscoring the broad impact of this work. Its significance is also reflected in its <strong>publication in Energy Materials<\/strong> (impact factor 11.2) \u2013 a leading journal in the field of energy research that highlights the scientific and practical relevance of our findings.<\/p>\n<\/div>\n<\/section>\n\n\n<section class=\"text-teaser text-teaser--dark\">\n  <h2 class=\"text-teaser__heading\">The paper<\/h2>\n  <div class=\"text-teaser__text\"><p><strong>Title:<\/strong> Gradient engineering in proton exchange membrane fuel cell cathodes: an electrochemical study of charge transfer, mass transport, and Pt utilisation<\/p>\n<p><a href=\"https:\/\/doi.org\/10.20517\/energymater.2025.84\" target=\"_blank\">in Energy Materials<\/a><\/p>\n<p><strong>Author: <\/strong>Adib Caidi<br \/>\n<strong>Co-authors:<\/strong> Thomas Lange, Ivan Radev, Kerstin Grimm, Volker Peinecke, Fatih \u00d6zcan, Doris Segets<\/p>\n<p>The publication is open access. Thanks to AK Science for covering the costs!<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/zbt.de\/zentrum\/abteilungen\/elektrochemische-komponenten\/\">Electrochemical Components Department<\/a><\/p>\n<\/div>\n<\/section>\n\n\n<section class=\"latest-news latest-news--light\">\n            <h2 class=\"latest-news__heading\">Latest News<\/h2>\n                <div class=\"latest-news__grid\">\n                                            <div class=\"latest-news__item\">\n                    <a href=\"https:\/\/zbt.de\/en\/news\/zbt-team-succeeds-at-duisburg-dragon-boat-races\/\" class=\"news-card\" title=\"ZBT Team Succeeds at Duisburg Dragon Boat Races\">\n    <div class=\"news-card__header\">\n        <figure class=\"news-card__figure\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/1784536521796-e1785237077914.jpg\" class=\"news-card__image wp-post-image\" alt=\"\" \/>\n        <\/figure>\n    <\/div>\n    <div class=\"news-card__body\">\n        <time class=\"topic-card__published\" datetime=\"2026-07-27T10:00:00+00:00\">\n            27. July, 2026\n        <\/time>\n        <h4 class=\"topic-card__title\">ZBT Team Succeeds at Duisburg Dragon Boat Races<\/h4>\n        <p class=\"topic-card__text\">Once again this year, the ZBT celebrated two sporting victories with its dragon boat team, \u201cDie Brennstoffzellen,\u201d at the Duisburg Dragon Boat Regattas.  <\/p>\n    <\/div>\n    <div class=\"news-card__footer\">\n        <div class=\"news-card__action\">\n            <span class=\"news-card__more\">Read more<\/span>\n            <i class=\"news-card__arrow\"> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" viewBox=\"0 0 448 512\"><path d=\"M435.3 267.3L446.6 256l-11.3-11.3-168-168L256 65.4 233.4 88l11.3 11.3L385.4 240 16 240 0 240l0 32 16 0 369.4 0L244.7 412.7 233.4 424 256 446.6l11.3-11.3 168-168z\"\/><\/svg><\/i>\n        <\/div>\n    <\/div>\n<\/a>\n                <\/div>\n                                            <div class=\"latest-news__item\">\n                    <a href=\"https:\/\/zbt.de\/en\/news\/zbt-researcher-elisabeth-verweyen-presents-progress-on-conductive-polymer-compounds\/\" class=\"news-card\" title=\"ZBT researcher Elisabeth Verweyen presents progress on conductive polymer compounds\">\n    <div class=\"news-card__header\">\n        <figure class=\"news-card__figure\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"771\" src=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/XRD_ReactorX-1024x771.jpg\" class=\"news-card__image wp-post-image\" alt=\"\" srcset=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/XRD_ReactorX-1024x771.jpg 1024w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/XRD_ReactorX-300x226.jpg 300w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/XRD_ReactorX-768x578.jpg 768w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/XRD_ReactorX-1536x1157.jpg 1536w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/XRD_ReactorX-1320x994.jpg 1320w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/XRD_ReactorX.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\n        <\/figure>\n    <\/div>\n    <div class=\"news-card__body\">\n        <time class=\"topic-card__published\" datetime=\"2026-07-27T08:00:20+00:00\">\n            27. July, 2026\n        <\/time>\n        <h4 class=\"topic-card__title\">ZBT researcher Elisabeth Verweyen presents progress on conductive polymer compounds<\/h4>\n        <p class=\"topic-card__text\">The ZBT presented its latest research findings on the development of conductive polymer compounds at two international conferences.<\/p>\n    <\/div>\n    <div class=\"news-card__footer\">\n        <div class=\"news-card__action\">\n            <span class=\"news-card__more\">Read more<\/span>\n            <i class=\"news-card__arrow\"> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" viewBox=\"0 0 448 512\"><path d=\"M435.3 267.3L446.6 256l-11.3-11.3-168-168L256 65.4 233.4 88l11.3 11.3L385.4 240 16 240 0 240l0 32 16 0 369.4 0L244.7 412.7 233.4 424 256 446.6l11.3-11.3 168-168z\"\/><\/svg><\/i>\n        <\/div>\n    <\/div>\n<\/a>\n                <\/div>\n                                            <div class=\"latest-news__item\">\n                    <a href=\"https:\/\/zbt.de\/en\/news\/zbt-at-the-sdewes-conference-in-dubrovnik-2\/\" class=\"news-card\" title=\"ZBT researcher Elisabeth Verweyen presents progress on conductive polymer compounds\">\n    <div class=\"news-card__header\">\n        <figure class=\"news-card__figure\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"915\" height=\"681\" src=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/EVN-ECCM22-2026-Portraet.jpg\" class=\"news-card__image wp-post-image\" alt=\"Konferenzteilnehmerin neben einem Konferenzplakat\" srcset=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/EVN-ECCM22-2026-Portraet.jpg 915w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/EVN-ECCM22-2026-Portraet-300x223.jpg 300w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/EVN-ECCM22-2026-Portraet-768x572.jpg 768w\" sizes=\"auto, (max-width: 915px) 100vw, 915px\" \/>\n        <\/figure>\n    <\/div>\n    <div class=\"news-card__body\">\n        <time class=\"topic-card__published\" datetime=\"2026-07-06T10:00:00+00:00\">\n            6. July, 2026\n        <\/time>\n        <h4 class=\"topic-card__title\">ZBT researcher Elisabeth Verweyen presents progress on conductive polymer compounds<\/h4>\n        <p class=\"topic-card__text\">The ZBT presented its latest research findings on the development of conductive polymer compounds at two international conferences.<\/p>\n    <\/div>\n    <div class=\"news-card__footer\">\n        <div class=\"news-card__action\">\n            <span class=\"news-card__more\">Read more<\/span>\n            <i class=\"news-card__arrow\"> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" viewBox=\"0 0 448 512\"><path d=\"M435.3 267.3L446.6 256l-11.3-11.3-168-168L256 65.4 233.4 88l11.3 11.3L385.4 240 16 240 0 240l0 32 16 0 369.4 0L244.7 412.7 233.4 424 256 446.6l11.3-11.3 168-168z\"\/><\/svg><\/i>\n        <\/div>\n    <\/div>\n<\/a>\n                <\/div>\n                                            <div class=\"latest-news__item\">\n                    <a href=\"https:\/\/zbt.de\/en\/news\/zbt-at-the-sdewes-conference-in-dubrovnik-4\/\" class=\"news-card\" title=\"ZBT Showcases Expertise in Podcasts: Research, Knowledge Transfer, and Science Communication\">\n    <div class=\"news-card__header\">\n        <figure class=\"news-card__figure\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/ZBT-base-Hauptgebaeude-1024x683.jpg\" class=\"news-card__image wp-post-image\" alt=\"\" srcset=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/ZBT-base-Hauptgebaeude-1024x683.jpg 1024w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/ZBT-base-Hauptgebaeude-300x200.jpg 300w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/ZBT-base-Hauptgebaeude-768x512.jpg 768w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/ZBT-base-Hauptgebaeude-1536x1025.jpg 1536w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/ZBT-base-Hauptgebaeude-1320x880.jpg 1320w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/ZBT-base-Hauptgebaeude.jpg 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\n        <\/figure>\n    <\/div>\n    <div class=\"news-card__body\">\n        <time class=\"topic-card__published\" datetime=\"2026-06-29T10:00:00+00:00\">\n            29. June, 2026\n        <\/time>\n        <h4 class=\"topic-card__title\">ZBT Showcases Expertise in Podcasts: Research, Knowledge Transfer, and Science Communication<\/h4>\n        <p class=\"topic-card__text\">Whether it&#8217;s the latest hydrogen research, knowledge and technology transfer, or science communication, staff members at the ZBT &#8211; The Hydrogen and Fuel Cell Center \u2014 share their expertise through various podcast formats.<\/p>\n    <\/div>\n    <div class=\"news-card__footer\">\n        <div class=\"news-card__action\">\n            <span class=\"news-card__more\">Read more<\/span>\n            <i class=\"news-card__arrow\"> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" viewBox=\"0 0 448 512\"><path d=\"M435.3 267.3L446.6 256l-11.3-11.3-168-168L256 65.4 233.4 88l11.3 11.3L385.4 240 16 240 0 240l0 32 16 0 369.4 0L244.7 412.7 233.4 424 256 446.6l11.3-11.3 168-168z\"\/><\/svg><\/i>\n        <\/div>\n    <\/div>\n<\/a>\n                <\/div>\n                                            <div class=\"latest-news__item\">\n                    <a href=\"https:\/\/zbt.de\/en\/news\/zbt-at-the-sdewes-conference-in-dubrovnik-3\/\" class=\"news-card\" title=\"ZBT Team Succeeds at Duisburg Dragon Boat Races\">\n    <div class=\"news-card__header\">\n        <figure class=\"news-card__figure\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"754\" src=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/Toeppersee-Regatta-2026-kleines-Gruppenbild-1024x754.jpg\" class=\"news-card__image wp-post-image\" alt=\"\" srcset=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/Toeppersee-Regatta-2026-kleines-Gruppenbild-1024x754.jpg 1024w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Toeppersee-Regatta-2026-kleines-Gruppenbild-300x221.jpg 300w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Toeppersee-Regatta-2026-kleines-Gruppenbild-768x565.jpg 768w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Toeppersee-Regatta-2026-kleines-Gruppenbild-1536x1130.jpg 1536w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Toeppersee-Regatta-2026-kleines-Gruppenbild-1320x971.jpg 1320w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Toeppersee-Regatta-2026-kleines-Gruppenbild.jpg 1696w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\n        <\/figure>\n    <\/div>\n    <div class=\"news-card__body\">\n        <time class=\"topic-card__published\" datetime=\"2026-06-29T10:00:00+00:00\">\n            29. June, 2026\n        <\/time>\n        <h4 class=\"topic-card__title\">ZBT Team Succeeds at Duisburg Dragon Boat Races<\/h4>\n        <p class=\"topic-card__text\">Once again this year, the ZBT celebrated two sporting victories with its dragon boat team, \u201cDie Brennstoffzellen,\u201d at the Duisburg Dragon Boat Regattas.  <\/p>\n    <\/div>\n    <div class=\"news-card__footer\">\n        <div class=\"news-card__action\">\n            <span class=\"news-card__more\">Read more<\/span>\n            <i class=\"news-card__arrow\"> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" viewBox=\"0 0 448 512\"><path d=\"M435.3 267.3L446.6 256l-11.3-11.3-168-168L256 65.4 233.4 88l11.3 11.3L385.4 240 16 240 0 240l0 32 16 0 369.4 0L244.7 412.7 233.4 424 256 446.6l11.3-11.3 168-168z\"\/><\/svg><\/i>\n        <\/div>\n    <\/div>\n<\/a>\n                <\/div>\n                                            <div class=\"latest-news__item\">\n                    <a href=\"https:\/\/zbt.de\/en\/news\/zbt-at-the-sdewes-conference-in-dubrovnik-5\/\" class=\"news-card\" title=\"ZBT doctoral students present their research at EPHyC and H2science in Trondheim\">\n    <div class=\"news-card__header\">\n        <figure class=\"news-card__figure\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"915\" src=\"https:\/\/zbt.de\/app\/uploads\/2026\/06\/EPHyC-H2science-Trondheim-2026-LWH-1024x915.jpg\" class=\"news-card__image wp-post-image\" alt=\"\" srcset=\"https:\/\/zbt.de\/app\/uploads\/2026\/06\/EPHyC-H2science-Trondheim-2026-LWH-1024x915.jpg 1024w, https:\/\/zbt.de\/app\/uploads\/2026\/06\/EPHyC-H2science-Trondheim-2026-LWH-300x268.jpg 300w, https:\/\/zbt.de\/app\/uploads\/2026\/06\/EPHyC-H2science-Trondheim-2026-LWH-768x686.jpg 768w, https:\/\/zbt.de\/app\/uploads\/2026\/06\/EPHyC-H2science-Trondheim-2026-LWH.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\n        <\/figure>\n    <\/div>\n    <div class=\"news-card__body\">\n        <time class=\"topic-card__published\" datetime=\"2026-06-29T10:00:00+00:00\">\n            29. June, 2026\n        <\/time>\n        <h4 class=\"topic-card__title\">ZBT doctoral students present their research at EPHyC and H2science in Trondheim<\/h4>\n        <p class=\"topic-card__text\">Five ZBT doctoral students presented their current research in Trondheim at the European PhD Hydrogen Conference (EPHyC) and the H2science Conference.<\/p>\n    <\/div>\n    <div class=\"news-card__footer\">\n        <div class=\"news-card__action\">\n            <span class=\"news-card__more\">Read more<\/span>\n            <i class=\"news-card__arrow\"> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" viewBox=\"0 0 448 512\"><path d=\"M435.3 267.3L446.6 256l-11.3-11.3-168-168L256 65.4 233.4 88l11.3 11.3L385.4 240 16 240 0 240l0 32 16 0 369.4 0L244.7 412.7 233.4 424 256 446.6l11.3-11.3 168-168z\"\/><\/svg><\/i>\n        <\/div>\n    <\/div>\n<\/a>\n                <\/div>\n                                            <div class=\"latest-news__item\">\n                    <a href=\"https:\/\/zbt.de\/en\/news\/nigerian-delegation-learns-about-hydrogen-research-at-the-zbt\/\" class=\"news-card\" title=\"Nigerian Delegation Learns About Hydrogen Research at the ZBT\">\n    <div class=\"news-card__header\">\n        <figure class=\"news-card__figure\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"888\" src=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/Delegation-Nigeria-h2diplo-ZBT-2026-Labor-1024x888.jpg\" class=\"news-card__image wp-post-image\" alt=\"\" srcset=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/Delegation-Nigeria-h2diplo-ZBT-2026-Labor-1024x888.jpg 1024w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Delegation-Nigeria-h2diplo-ZBT-2026-Labor-300x260.jpg 300w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Delegation-Nigeria-h2diplo-ZBT-2026-Labor-768x666.jpg 768w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Delegation-Nigeria-h2diplo-ZBT-2026-Labor-1536x1331.jpg 1536w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Delegation-Nigeria-h2diplo-ZBT-2026-Labor-1320x1144.jpg 1320w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Delegation-Nigeria-h2diplo-ZBT-2026-Labor.jpg 1652w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\n        <\/figure>\n    <\/div>\n    <div class=\"news-card__body\">\n        <time class=\"topic-card__published\" datetime=\"2026-06-22T10:00:00+00:00\">\n            22. June, 2026\n        <\/time>\n        <h4 class=\"topic-card__title\">Nigerian Delegation Learns About Hydrogen Research at the ZBT<\/h4>\n        <p class=\"topic-card__text\">How can applied research support the development of a sustainable hydrogen market in Nigeria? With this question in mind, a delegation from the Nigerian H\u2082 Policy Committee visited the ZBT. <\/p>\n    <\/div>\n    <div class=\"news-card__footer\">\n        <div class=\"news-card__action\">\n            <span class=\"news-card__more\">Read more<\/span>\n            <i class=\"news-card__arrow\"> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" viewBox=\"0 0 448 512\"><path d=\"M435.3 267.3L446.6 256l-11.3-11.3-168-168L256 65.4 233.4 88l11.3 11.3L385.4 240 16 240 0 240l0 32 16 0 369.4 0L244.7 412.7 233.4 424 256 446.6l11.3-11.3 168-168z\"\/><\/svg><\/i>\n        <\/div>\n    <\/div>\n<\/a>\n                <\/div>\n                                            <div class=\"latest-news__item\">\n                    <a href=\"https:\/\/zbt.de\/en\/news\/international-delegation-from-the-baltic-states-visits-the-zbt\/\" class=\"news-card\" title=\"International Delegation from the Baltic States Visits the ZBT\">\n    <div class=\"news-card__header\">\n        <figure class=\"news-card__figure\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/Besuch-Delegation-Baltikum-2026-Gruppenfoto-1024x576.jpg\" class=\"news-card__image wp-post-image\" alt=\"\" srcset=\"https:\/\/zbt.de\/app\/uploads\/2026\/07\/Besuch-Delegation-Baltikum-2026-Gruppenfoto-1024x576.jpg 1024w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Besuch-Delegation-Baltikum-2026-Gruppenfoto-300x169.jpg 300w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Besuch-Delegation-Baltikum-2026-Gruppenfoto-768x432.jpg 768w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Besuch-Delegation-Baltikum-2026-Gruppenfoto-1536x864.jpg 1536w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Besuch-Delegation-Baltikum-2026-Gruppenfoto-1320x743.jpg 1320w, https:\/\/zbt.de\/app\/uploads\/2026\/07\/Besuch-Delegation-Baltikum-2026-Gruppenfoto.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\n        <\/figure>\n    <\/div>\n    <div class=\"news-card__body\">\n        <time class=\"topic-card__published\" datetime=\"2026-06-15T10:00:00+00:00\">\n            15. June, 2026\n        <\/time>\n        <h4 class=\"topic-card__title\">International Delegation from the Baltic States Visits the ZBT<\/h4>\n        <p class=\"topic-card__text\">The ZBT welcomed a delegation of about 25 experts from Lithuania, Estonia, and Latvia. The participants represented a broad spectrum of fields, including energy, infrastructure, research, and regulation. <\/p>\n    <\/div>\n    <div class=\"news-card__footer\">\n        <div class=\"news-card__action\">\n            <span class=\"news-card__more\">Read more<\/span>\n            <i class=\"news-card__arrow\"> <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"currentColor\" viewBox=\"0 0 448 512\"><path d=\"M435.3 267.3L446.6 256l-11.3-11.3-168-168L256 65.4 233.4 88l11.3 11.3L385.4 240 16 240 0 240l0 32 16 0 369.4 0L244.7 412.7 233.4 424 256 446.6l11.3-11.3 168-168z\"\/><\/svg><\/i>\n        <\/div>\n    <\/div>\n<\/a>\n                <\/div>\n                                <\/div>\n    <\/section>\n","protected":false},"excerpt":{"rendered":"<p>Open access paper published in Energy Materials: Clever gradient design in catalyst layer makes fuel cells more efficient. Precious metals used only where necessary.<\/p>\n","protected":false},"featured_media":13152,"parent":0,"template":"","class_list":["post-13173","news","type-news","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Graded Catalysts in Fuel Cells \u2013 Increased Performance Without Higher Platinum Usage - Zentrum f\u00fcr BrennstoffzellenTechnik GmbH<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zbt.de\/en\/news\/graded-catalysts-in-fuel-cells-increased-performance-without-higher-platinum-usage\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Graded Catalysts in Fuel Cells \u2013 Increased Performance Without Higher Platinum Usage - Zentrum f\u00fcr BrennstoffzellenTechnik GmbH\" \/>\n<meta property=\"og:description\" content=\"Open access paper published in Energy Materials: Clever gradient design in catalyst layer makes fuel cells more efficient. 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