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[期刊论文]

Visible light-regulated thermal catalytic selectivity induced by nonthermal effects over CuNi/CeO2

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author:

Yue, X. (Yue, X..) [1] | Wang, K. (Wang, K..) [2] | Yang, Z. (Yang, Z..) [3] | Unfold

Indexed by:

Scopus

Abstract:

Solar-assisted photothermal catalysis is a fascinated picture of chemical and energy conversion. However, it is difficult to distinguish the nonthermal effects due to the thermal and nonthermal tend to exhibit similar experimental results. Here, we reported that the CuNi alloy deposited CeO2 (CuNi/CeO2) with visible light excited carriers at the interface can promote CO2 reduction in the photothermal catalysis. Impressively, the CuNi/CeO2 exhibit different product selectivities in the dark and visible light reactions, especially the light promoted the further hydrogenation to CH4 conversion. Detailed experiments reveal that the hot electron transfer between plasmon metal Cu and metal Ni under visible light excitation alters the pathway of thermal reduction while increasing surface hydroxyl and oxygen vacancies as CO2 trapping sites. The excessive H2 activation under visible irradiation induces the deep reduction of CO2 to CH4, instead of reverse water gas shift. Combining with in-situ DRIFTS, quasi-situ EPR, H2 pulse and DFT calculations, the nonthermal effects of CO2 reduction is proposed over CuNi/CeO2 with electrons transfer between Cu and Ni nanoparticles. © 2023 Elsevier B.V.

Keyword:

CO2 hydrogenation CuNi/CeO2 Hot electrons Nonthermal effect Photothermal

Community:

  • [ 1 ] [Yue, X.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 2 ] [Yue, X.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
  • [ 3 ] [Wang, K.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 4 ] [Wang, K.]Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University, Fuzhou, 350108, China
  • [ 5 ] [Yang, Z.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 6 ] [Yang, Z.]Key Laboratory of Eco-materials Advanced Technology (Fuzhou University), Fujian Province University, Fuzhou, 350108, China
  • [ 7 ] [Ni, W.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 8 ] [Ni, W.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
  • [ 9 ] [Zhang, Z.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 10 ] [Zhang, Z.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
  • [ 11 ] [Dai, W.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 12 ] [Dai, W.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
  • [ 13 ] [Fu, X.]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China

Reprint 's Address:

  • [Dai, W.]Research Institute of Photocatalysis, China

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Source :

Chemical Engineering Journal

ISSN: 1385-8947

Year: 2023

Volume: 458

1 3 . 4

JCR@2023

1 3 . 4 0 0

JCR@2023

ESI HC Threshold:35

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 17

30 Days PV: 1

Affiliated Colleges:

Online/Total:10/10458316
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