French researchers have presented a study that enable to produce and use hydrogen by replacing platinum by a synthetic enzyme. This method should open a new era for the profitability of fuel cells by enabling the production of hydrogen from nickel, iron or cobalt, less expensive and rare than platinum.<\/p>\n
Thus, scientists from Laboratoire de chimie et de biologie des m\u00e9taux <\/em>(LCBM) from Grenoble and from Institut du rayonnement de la mati\u00e8re de Saclay<\/em> (IRAMIS) got inspired from hydrogenases, which are natural enzymes present notably in bacteria and using or producing hydrogen from nickel or iron. They originate from an era during which there was no oxygen on earth but carbon monoxide or hydrogen, and, as they are destructed by oxygen, are present in specific environments where hydrogen is profuse.<\/p>\n \u201cNature got along to produce hydrogen without platinum, that has inspired us<\/em>\u201d said Marc Fontecave from LCBM. This <\/strong>biomimetics approach came from the observation that some cyanobacteria can transform water to hydrogen thanks to solar energy. Thus, there are some hydrogenases realizing catalysis appealing to iron or nickel atoms.\u00a0 Researchers have put these \u201cimitations\u201d on carbon nanotubes which allows transplanting a lot of catalysts by unit areas on the electrode.<\/p>\n These promising results still have to be improved either by increasing the quantity of the catalyst on the electrode or by enhancing its chemistry as its speed is 10 to 100 times weaker than with plate and as there\u2019s no real substitute to plate. \u201cWe have 10 or 20 working years in front of us<\/em>\u201d considered Vincent Artero, researcher in LCBM and coauthor of the study.<\/p>\n Michael Hamburger (Appalachian State University) et Thomas Moore (Arizona State University) have positively reacted to this announcement considering that \u201cfuture optimizations of this compound could lead to viable catalyst, without noble metal, for fuel cell<\/em>\u201d.<\/p>\n","protected":false},"excerpt":{"rendered":" French researchers have presented a study that enable to produce and use hydrogen by replacing platinum by a synthetic enzyme. This method should open a new era for the profitability of fuel cells by enabling the production of hydrogen from nickel, iron or cobalt, less expensive and rare than platinum. Thus, scientists from Laboratoire de […]<\/p>\n","protected":false},"author":225,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-163122","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/163122","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/users\/225"}],"replies":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/comments?post=163122"}],"version-history":[{"count":0,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/163122\/revisions"}],"wp:attachment":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/media?parent=163122"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/categories?post=163122"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/tags?post=163122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}