1.0Zentrum für BrennstoffzellenTechnik GmbHhttps://zbt.de/en/Theresa Schredelsekerhttps://zbt.de/en/author/theresa-admin/rich600338<blockquote class="wp-embedded-content" data-secret="DCcnPduBxT"><a href="https://zbt.de/en/projects/greljet/">grELjet</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://zbt.de/en/projects/greljet/embed/#?secret=DCcnPduBxT" width="600" height="338" title="“grELjet” — Zentrum für BrennstoffzellenTechnik GmbH" data-secret="DCcnPduBxT" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://zbt.de/wp/wp-includes/js/wp-embed.min.js </script> https://zbt.de/app/uploads/2026/07/membran-mea-xrm.jpg1152758As part of the grELjet project, ZBT is collaborating with Fraunhofer ENAS to develop spatially resolved, optimised catalyst layers designed to reduce the iridium requirements of PEM electrolysers and increase their efficiency.