FigsharePub Date : 2019-10-24DOI: 10.1021/acscatal.9b02872.s001
Abdalaziz Aljabour (3345200), Halime Coskun (3345209), Xueli Zheng (284806), Md Golam Kibria (1886299), Moritz Strobel (8053475), Sabine Hild (1801351), Matthias Kehrer (6443285), David Stifter (1312740), Edward H. Sargent (1363284), Philipp Stadler (1933129)
{"title":"Active Sulfur Sitesnin Semimetallic Titanium DisulfidenEnable CO<sub>2</sub> Electroreduction","authors":"Abdalaziz Aljabour (3345200), Halime Coskun (3345209), Xueli Zheng (284806), Md Golam Kibria (1886299), Moritz Strobel (8053475), Sabine Hild (1801351), Matthias Kehrer (6443285), David Stifter (1312740), Edward H. Sargent (1363284), Philipp Stadler (1933129)","doi":"10.1021/acscatal.9b02872.s001","DOIUrl":"https://doi.org/10.1021/acscatal.9b02872.s001","url":null,"abstract":"Electrocatalytic CO<sub>2</sub>-to-CO conversion representsnonenpathway to upgrade CO<sub>2</sub> to a feedstock for both fuels andnchemicals (CO, deployed in ensuing Fischer–Tropsch or bioupgrading).nIt necessitates selective and energy-efficient electrocatalystsanrequirement met today only using noble metals such as gold and silver.nHere, we show that the two-dimensional sulfur planes in semimetallicntitanium disulfide (TiS<sub>2</sub>) provide an earth-abundant alternative.nIn situ Fourier transform infrared mechanistic studies reveal thatnCO<sub>2</sub> binds to conductive disulfide planes as intermediatenmonothiocarbonate. The sulfur–CO<sub>2</sub> intermediate statensteers the reduction kinetics toward mainly CO. Using TiS<sub>2</sub> thin films, we reach cathodic energy efficiencies up to 64% at 5nmA cm<sup>2</sup>. We conclude with directions for the further synthesisnand study of semimetallic disulfides developing CO-selective electrocatalysts.","PeriodicalId":522444,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147897264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}