{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,15]],"date-time":"2025-11-15T10:31:25Z","timestamp":1763202685261,"version":"build-2065373602"},"reference-count":19,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2022,9,29]],"date-time":"2022-09-29T00:00:00Z","timestamp":1664409600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005416","name":"Norges Forskningsr\u00e5d","doi-asserted-by":"publisher","award":["314012","295864"],"award-info":[{"award-number":["314012","295864"]}],"id":[{"id":"10.13039\/501100005416","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemistryOpen"],"published-print":{"date-parts":[[2022,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Oxide\u2010derived copper (OD\u2212Cu) catalysts have received widespread attention for their ability to produce energy\u2010dense multicarbon products. Within this class of materials, nanostructured copper hydroxide (Cu(OH)<jats:sub>2<\/jats:sub>) has shown excellent catalytic properties, but its synthesis requires complex pre\u2010treatment steps of the Cu surface. In this study, we have developed a simple two\u2010step synthesis method for homogenous Cu(OH)<jats:sub>2<\/jats:sub> nanoneedle films using a sodium persulfate pre\u2010treatment step prior to anodization. The Cu(OH)<jats:sub>2<\/jats:sub> nanoneedle films show drastically enhanced uniformity after the pre\u2010treatment due to improved current distribution and can be grown over large surface areas (63\u2005cm<jats:sup>2<\/jats:sup>). As a catalyst for CO<jats:sub>2<\/jats:sub> reduction, the Cu(OH)<jats:sub>2<\/jats:sub> favours ethylene formation, with a near total suppression of methane production. A peak faradaic efficiency (FE) of 36.5\u2009% is found at \u22121.0\u2005V vs. the reversible hydrogen electrode (RHE), and the catalyst remains stable while providing an ethylene to methane ratio of 27.8 after 6\u2005h of reaction.<\/jats:p>","DOI":"10.1002\/open.202200133","type":"journal-article","created":{"date-parts":[[2022,9,29]],"date-time":"2022-09-29T21:49:38Z","timestamp":1664488178000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Sodium Persulfate Pre\u2010treatment of Copper Foils Enabling Homogenous Growth of Cu(OH)<sub>2<\/sub> Nanoneedle Films for Electrochemical CO<sub>2<\/sub> Reduction"],"prefix":"10.1002","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9772-7801","authenticated-orcid":false,"given":"Kim Robert","family":"Gustavsen","sequence":"first","affiliation":[{"name":"Department of Microsystems University of South-Eastern Norway  Raveien 205 3184 Horten Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erik Andrew","family":"Johannessen","sequence":"additional","affiliation":[{"name":"Department of Microsystems University of South-Eastern Norway  Raveien 205 3184 Horten Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0018-0959","authenticated-orcid":false,"given":"Kaiying","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Microsystems University of South-Eastern Norway  Raveien 205 3184 Horten Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,9,29]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1039\/D1CP00908G"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.9b00896"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.nanolett.1c04653"},{"key":"e_1_2_8_4_1","unstructured":"\u00a0"},{"key":"e_1_2_8_5_2","doi-asserted-by":"publisher","DOI":"10.1039\/C4TA05730A"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.electacta.2009.10.034"},{"key":"e_1_2_8_7_1","unstructured":"\u00a0"},{"key":"e_1_2_8_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.matlet.2015.10.028"},{"key":"e_1_2_8_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.matlet.2011.03.105"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10853-006-1436-2"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matlet.2017.03.155"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1088\/1757-899X\/347\/1\/012010"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apsusc.2016.01.010"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp054350p"},{"key":"e_1_2_8_15_1","unstructured":"\u00a0"},{"key":"e_1_2_8_16_2","doi-asserted-by":"publisher","DOI":"10.1149\/1.2746805"},{"key":"e_1_2_8_17_2","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.6b00205"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.5185\/amlett.2015.5630"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-0248(03)01145-X"}],"container-title":["ChemistryOpen"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/open.202200133","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/open.202200133","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/open.202200133","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T13:36:23Z","timestamp":1760967383000},"score":1,"resource":{"primary":{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/10.1002\/open.202200133"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,9,29]]},"references-count":19,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2022,10]]}},"alternative-id":["10.1002\/open.202200133"],"URL":"https:\/\/doi.org\/10.1002\/open.202200133","archive":["Portico"],"relation":{},"ISSN":["2191-1363","2191-1363"],"issn-type":[{"type":"print","value":"2191-1363"},{"type":"electronic","value":"2191-1363"}],"subject":[],"published":{"date-parts":[[2022,9,29]]},"assertion":[{"value":"2022-06-10","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-09-29","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e202200133"}}