气候变化领域集成服务门户(CCPortal): How to make an efficient gas-phase heterogeneous CO2hydrogenation photocatalyst

CCPortal

DOI	10.1039/d0ee01124j
	How to make an efficient gas-phase heterogeneous CO2hydrogenation photocatalyst
	Yan T.; Li N.; Wang L.; Liu Q.; Jelle A.; Wang L.; Xu Y.; Liang Y.; Dai Y.; Huang B.; You J.; Ozin G.A.
发表日期	2020
ISSN	17545692
起始页码	3054
结束页码	3063
卷号	13 期号:9
英文摘要	Tailoring the performance of a photocatalyst by design is challenge in the field of renewable synthetic fuels. Herein, polymorphic heterostructures comprised of two indium oxide based photocatalysts, with distinct structures yet continuously adjustable fractions of the same composition, enable optimization of the activity and selectivity of CO2 hydrogenation to CO and CH3OH. The strategy rests on the cubic (c-) to rhombohedral (rh-) indium oxide hydroxide In2O3-x(OH)y phase transition, in which the fraction of the cubic phase that nucleates and grows within the rhombohedral phase is under precise structural and compositional control. Interfaces so-formed between cubic and rhombohedral polymorphs with distinct electronic band structures as well as separate locations of electron trapping oxygen vacancies and hole trapping hydroxyl defects in individual In2O3-x(OH)y components, enable charge generation, separation and lifetimes of photogenerated electron-hole pairs to be finely tuned. This facilitates command over H2 and CO2 surface chemical reactions that are responsible for the activity and selectivity towards products CO and CH3OH. The control over the performance metrics of a CO2 hydrogenation photocatalyst provided by tuneable rh/c-In2O3-x(OH)y polymorphic heterostructures, affords promising opportunities for the future development of renewable synthetic fuels. This journal is © The Royal Society of Chemistry.
英文关键词	Alcohol fuels; Carbon dioxide; Hydrogen fuels; Hydrogenation; Surface reactions; Charge generation; Compositional control; Electronic band structure; Indium oxide hydroxide; Performance metrics; Photogenerated electrons; Rhombohedral phase; Surface chemical reactions; Indium compounds; carbon dioxide; catalysis; catalyst; concentration (composition); energy efficiency; hydrogen; photochemistry
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189550
作者单位	College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu Shandong, 273165, China; Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada; Qufu Normal University Library, Qufu Normal University, Qufu Shandong, 273165, China; School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan Shandong, 250100, China
推荐引用方式 GB/T 7714	Yan T.,Li N.,Wang L.,et al. How to make an efficient gas-phase heterogeneous CO2hydrogenation photocatalyst[J],2020,13(9).
APA	Yan T..,Li N..,Wang L..,Liu Q..,Jelle A..,...&Ozin G.A..(2020).How to make an efficient gas-phase heterogeneous CO2hydrogenation photocatalyst.Energy & Environmental Science,13(9).
MLA	Yan T.,et al."How to make an efficient gas-phase heterogeneous CO2hydrogenation photocatalyst".Energy & Environmental Science 13.9(2020).