{"id":132759,"date":"2024-08-01T09:00:18","date_gmt":"2024-08-01T06:00:18","guid":{"rendered":"https:\/\/tietopankki.crnet.fi\/fi\/news\/green-hydrogen-artificial-leaf-becomes-better-under-pressure\/"},"modified":"2024-08-01T09:00:18","modified_gmt":"2024-08-01T06:00:18","slug":"green-hydrogen-artificial-leaf-becomes-better-under-pressure","status":"publish","type":"post","link":"https:\/\/tietopankki.crnet.fi\/en\/news\/green-hydrogen-artificial-leaf-becomes-better-under-pressure\/","title":{"rendered":"Green Hydrogen: \u2018Artificial Leaf\u2019 Becomes Better Under Pressure"},"content":{"rendered":"<div class=\"mp_wrapper\">\n  <div class=\"mepr-unauthorized-message\">\n    <p>You are unauthorized to view this page.<\/p>\n  <\/div>\n  <div class=\"mepr-login-form-wrap\">\n            \n<div class=\"mp_wrapper mp_login_form\">\n                  <!-- mp-login-form-start -->     <form name=\"mepr_loginform\" id=\"mepr_loginform\" class=\"mepr-form\" action=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/\" method=\"post\" data-trp-original-action=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/\">\n            <div class=\"mp-form-row mepr_username\">\n        <div class=\"mp-form-label\">\n                              <label for=\"user_login\">Username<\/label>\n        <\/div>\n        <input type=\"text\" name=\"log\" id=\"user_login\" value=\"\" \/>\n      <\/div>\n      <div class=\"mp-form-row mepr_password\">\n        <div class=\"mp-form-label\">\n          <label for=\"user_pass\">Password<\/label>\n          <div class=\"mp-hide-pw\">\n            <input type=\"password\" name=\"pwd\" id=\"user_pass\" value=\"\" \/>\n            <button type=\"button\" class=\"button mp-hide-pw hide-if-no-js\" data-toggle=\"0\" aria-label=\"Show password\">\n              <span class=\"dashicons dashicons-visibility\" aria-hidden=\"true\"><\/span>\n            <\/button>\n          <\/div>\n        <\/div>\n      <\/div>\n            <div>\n        <label><input name=\"rememberme\" type=\"checkbox\" id=\"rememberme\" value=\"forever\" \/> Remember Me<\/label>\n      <\/div>\n      <div class=\"mp-spacer\">&nbsp;<\/div>\n      <div class=\"submit\">\n        <input type=\"submit\" name=\"wp-submit\" id=\"wp-submit\" class=\"button-primary mepr-share-button\" value=\"Log In\" \/>\n        <input type=\"hidden\" name=\"redirect_to\" value=\"\/en\/wp-json\/wp\/v2\/posts\/132759\" \/>\n        <input type=\"hidden\" name=\"mepr_process_login_form\" value=\"true\" \/>\n        <input type=\"hidden\" name=\"mepr_is_login_page\" value=\"false\" \/>\n      <\/div>\n    <input type=\"hidden\" name=\"trp-form-language\" value=\"en\"\/><\/form>\n    <div class=\"mp-spacer\">&nbsp;<\/div>\n    <div class=\"mepr-login-actions\">\n        <a\n          href=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/?action=forgot_password\"\n          title=\"Click here to reset your password\"\n        >\n          Forgot Password        <\/a>\n    <\/div>\n\n      \n    <!-- mp-login-form-end --> \n  <\/div>\n      <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<div class=\"smart_content_wrapper\">\n<p>Hydrogen can be produced via the electrolytic splitting of water. One option here is the use of photoelectrodes that convert sunlight into voltage for electrolysis in so called photoelectrochemical cells (PEC cells). A research team at HZB has now shown that the efficiency of PEC cells can be significantly increased under pressure.<\/p>\n<p>Some call it an \u2018artificial leaf\u2019: instead of the natural Photosystem II complex that green leaves in nature use to split water with sunlight, photoelectrochemical cells, or PEC cells for short, use artificial, inorganic photoelectrodes to generate the voltage required for the electrolytic splitting of water from sunlight.<\/p>\n<p>The best performing devices already achieve impressive energy conversion efficiencies of up to 19 per cent. At such high efficiencies, losses due to bubble formation start to play an important role. This is because bubbles scatter light, preventing optimal illumination of the electrode. Moreover, bubbles may block the electrolyte from contacting the electrode surface and thus cause electrochemical deactivation.<\/p>\n<p>To minimize these losses, it would help to reduce the bubble sizes by operating the device at higher pressure. However, all PEC devices reported thus far have been operating at atmospheric pressure (1 bar). <a rel=\"noopener\" href=\"https:\/\/www.helmholtz-berlin.de\/pubbin\/news_seite?nid=27566&amp;sprache=en&amp;seitenid=1\">Read more at Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie\u00a0<\/a><\/p>\n<p>Source: <a rel=\"noopener\" href=\"https:\/\/www.enn.com\/articles\/75005-green-hydrogen-artificial-leaf-becomes-better-under-pressure\">ENN<\/a><\/p>\n<\/div>\n<p>The post <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\/vaufien\/green-hydrogen-artificial-leaf-becomes-better-under-pressure\/\">Green Hydrogen: \u2018Artificial Leaf\u2019 Becomes Better Under Pressure<\/a> appeared first on <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\">Vastuullisuusuutiset.fi<\/a>.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[7808,606,607,608],"class_list":["post-132759","post","type-post","status-publish","format-standard","hentry","category-news","tag-green-hydrogen","tag-vau_viikkokatsaus","tag-vauen","tag-vaufien"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts\/132759","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/comments?post=132759"}],"version-history":[{"count":0,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts\/132759\/revisions"}],"wp:attachment":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/media?parent=132759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/categories?post=132759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/tags?post=132759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}