Kangwang Wang, Mingjie Wu, Peifeng Yu, Hector F. Garces, Ying Liang, Longfu Li, Lingyong Zeng, Kuan Li, Chao Zhang, Kai Yan, Huixia Luo
{"title":"Non-trivial Topological Surface States Regulation of 1T-OsCoTe$_2$ Enables Selective C-C Coupling for Highly Efficient Photochemical CO$_2$ Reduction Toward C$_{2+}$ hydrocarbons","authors":"Kangwang Wang, Mingjie Wu, Peifeng Yu, Hector F. Garces, Ying Liang, Longfu Li, Lingyong Zeng, Kuan Li, Chao Zhang, Kai Yan, Huixia Luo","doi":"arxiv-2408.11369","DOIUrl":null,"url":null,"abstract":"Despite ongoing research, the rational design of nontrivial topological\nsemimetal surface states for the selective photocatalytic CO$_2$ conversion\ninto valuable products remains full of challenges. Herein, we present the\nsynthesis of 1T-OsCoTe$_2$ for the photoreduction upgrading of CO$_2$ to\ntricarbon alkane C$_3$H$_8$,by the integration of experimental work and theory\ncalculation. Experimental studies suggested a high electron based selectivity\nof 71.2% for C$_3$H$_8$ and an internal quantum efficiency of 54.6% at 380 nm.\nIn-situ X-ray photoelectron spectroscopy and X-ray absorption fine structure\nspectroscopy demonstrated that Co and Os atoms coordinated with Te atoms enable\nan efficient Os-Te-Co electron transfer to activate the generation of\n*CH$_3$,*CHOCO and *CH$_2$OCOCO. Density functional theory calculations further\nconfirmed Os-Te-Co electron bridging on the improved CO$_2$ conversion\nkinetics. To our knowledge, this is the first report suggesting the role of Os\natoms in accelerating the photocatalytic CO$_2$ conversion activity of the\ntopological semimetal 1T-OsCoTe$_2$.","PeriodicalId":501211,"journal":{"name":"arXiv - PHYS - Other Condensed Matter","volume":"32 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Other Condensed Matter","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2408.11369","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Despite ongoing research, the rational design of nontrivial topological
semimetal surface states for the selective photocatalytic CO$_2$ conversion
into valuable products remains full of challenges. Herein, we present the
synthesis of 1T-OsCoTe$_2$ for the photoreduction upgrading of CO$_2$ to
tricarbon alkane C$_3$H$_8$,by the integration of experimental work and theory
calculation. Experimental studies suggested a high electron based selectivity
of 71.2% for C$_3$H$_8$ and an internal quantum efficiency of 54.6% at 380 nm.
In-situ X-ray photoelectron spectroscopy and X-ray absorption fine structure
spectroscopy demonstrated that Co and Os atoms coordinated with Te atoms enable
an efficient Os-Te-Co electron transfer to activate the generation of
*CH$_3$,*CHOCO and *CH$_2$OCOCO. Density functional theory calculations further
confirmed Os-Te-Co electron bridging on the improved CO$_2$ conversion
kinetics. To our knowledge, this is the first report suggesting the role of Os
atoms in accelerating the photocatalytic CO$_2$ conversion activity of the
topological semimetal 1T-OsCoTe$_2$.