{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,10]],"date-time":"2026-10-10T13:25:12Z","timestamp":1791638712279,"version":"4.3.4"},"reference-count":49,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2015,1,8]],"date-time":"2015-01-08T00:00:00Z","timestamp":1420675200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemSusChem"],"published-print":{"date-parts":[[2015,4,24]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Delafossite CuFeO\n                    <jats:sub>2<\/jats:sub>\n                    is a promising material for solar hydrogen production, but is limited by poor photocurrent. Strategies are demonstrated herein to improve the performance of CuFeO\n                    <jats:sub>2<\/jats:sub>\n                    electrodes prepared directly on transparent conductive substrates by using a simple sol\u2013gel technique. Optimizing the delafossite layer thickness and increasing the majority carrier concentration (through the thermal intercalation of oxygen) give insights into the limitations of photogenerated charge extraction and enable performance improvements. In oxygen\u2010saturated electrolyte, (sacrificial) photocurrents (1\u2005sun illumination) up to 1.51\u2005mA\u2009cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    at +0.35\u2005V versus a reversible hydrogen electrode (RHE) are observed. Water photoreduction with bare delafossite is limited by poor hydrogen evolution catalysis, but employing methyl viologen as an electron acceptor verifies that photogenerated electrons can be extracted from the conduction band before recombination into mid\u2010gap trap states identified by electrochemical impedance spectroscopy. Through the use of suitable oxide overlayers and a platinum catalyst, sustained solar hydrogen production photocurrents of 0.4\u2005mA\u2009cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    at 0\u2005V versus RHE (0.8\u2005mA\u2009cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    at \u22120.2\u2005V) are demonstrated. Importantly, bare CuFeO\n                    <jats:sub>2<\/jats:sub>\n                    is highly stable at potentials at which photocurrent is generated. No degradation is observed after 40\u2005h under operating conditions in oxygen\u2010saturated electrolyte.\n                  <\/jats:p>","DOI":"10.1002\/cssc.201403146","type":"journal-article","created":{"date-parts":[[2015,1,8]],"date-time":"2015-01-08T16:36:07Z","timestamp":1420734967000},"page":"1359-1367","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":262,"title":["Enhancing the Performance of a Robust Sol\u2013Gel\u2010Processed p\u2010Type Delafossite CuFeO\n                    <sub>2<\/sub>\n                    Photocathode for Solar Water Reduction"],"prefix":"10.1002","volume":"8","author":[{"given":"Mathieu S.","family":"Pr\u00e9vot","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N\u00e9stor","family":"Guijarro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kevin","family":"Sivula","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,1,8]]},"reference":[{"key":"e_1_2_6_1_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp405291g"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp311947x"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201303813"},{"key":"e_1_2_6_3_3","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201303813"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1021\/nl403265k"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.280.5362.425"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja308581g"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1038\/nmat3017"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.201301106"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1021\/nn3057092"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja312653y"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1021\/am402096r"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1039\/c3ta14096b"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja405680p"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja309523t"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.solener.2005.02.018"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.79.041403"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.electacta.2013.09.129"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1021\/jz300709t"},{"key":"e_1_2_6_19_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja408876k"},{"key":"e_1_2_6_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tsf.2005.08.316"},{"key":"e_1_2_6_21_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10008-008-0703-3"},{"key":"e_1_2_6_22_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp402007z"},{"key":"e_1_2_6_23_2","doi-asserted-by":"publisher","DOI":"10.1023\/A:1013615930587"},{"key":"e_1_2_6_24_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF00402588"},{"key":"e_1_2_6_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tsf.2012.03.032"},{"key":"e_1_2_6_26_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.3284160"},{"key":"e_1_2_6_27_2","doi-asserted-by":"publisher","DOI":"10.1002\/pssb.19660150224"},{"key":"e_1_2_6_28_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.apsusc.2012.01.022"},{"key":"e_1_2_6_29_2","doi-asserted-by":"publisher","DOI":"10.1021\/cm062481c"},{"key":"e_1_2_6_30_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp301176y"},{"key":"e_1_2_6_31_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp308591k"},{"key":"e_1_2_6_32_2","doi-asserted-by":"publisher","DOI":"10.1039\/C0EE00570C"},{"key":"e_1_2_6_33_2","doi-asserted-by":"publisher","DOI":"10.1039\/c3cy00020f"},{"key":"e_1_2_6_34_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja00520a019"},{"key":"e_1_2_6_35_2","doi-asserted-by":"publisher","DOI":"10.1038\/ncomms3195"},{"key":"e_1_2_6_36_2","doi-asserted-by":"publisher","DOI":"10.1039\/b926931b"},{"key":"e_1_2_6_37_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp809060p"},{"key":"e_1_2_6_38_2","volume-title":"Electrochemistry 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