Intermediate stabilization for tuning photocatalytic selective oxidation of CH4 to CH3OH over Co3O4/ZnO - Details

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Abstract：

Artificial　photocatalysis　provides　a　promising　approach　for　CH4　selective　conversion　into　CH3OH　under　mild　reaction　conditions.　However,　the　over-oxidization　by　the　active　oxygen　radical　species　impedes　for　the　high　efficiency　of　photocatalytic　conversion　of　CH4　to　CH3OH.　Here,　we　proposed　a　strategy　of　the　transfer　of　key　intermediates　•CH3　from　host　photocatalyst　surface　for　stability　to　improve　CH4　conversion　to　CH3OH　products.　A　Co3O4/ZnO　composited　photocatalyst　was　designed　to　efficiently　convert　CH4　to　CH3OH　with　a　rate　of　366　μmol　g-1h−1　under　simulated　sunlight　irradiation,　while　the　parent　ZnO　only　completely　overoxidized　CH4　into　CO2.　We　uncovered　that　Co3O4　played　a　new　role　as　the　active　site　for　the　adsorption　of　•CH3　key　intermediates　and　the　desorption　of　CH3OH　to　suppress　CH4　overoxidation　on　ZnO　surface.　This　work　highlights　cocatalyst　for　•CH3　intermediate　stabilization　to　control　the　pathway　of　photocatalytic　selective　oxidation　of　CH4　into　CH3OH.　©　2022　Elsevier　Inc.

Keyword：

Co3O4 Methane Methanol Photocatalysis Selective oxidation

Community：

[ 1 ] [Xiao, Z.]State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Xiao, Z.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 3 ] [Shen, J.]State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 4 ] [Shen, J.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Zhang, J.]State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 6 ] [Zhang, J.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Li, D.]State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 8 ] [Li, D.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 9 ] [Li, Y.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 10 ] [Wang, X.]State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 11 ] [Wang, X.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 12 ] [Zhang, Z.]State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 13 ] [Zhang, Z.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
[ 14 ] [Zhang, Z.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address：

[Zhang, Z.]State Key Lab of Photocatalysis on Energy and Environment, China

Email：

z.zhang@fzu.edu.cn

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Source ：

Journal of Catalysis

ISSN： 0021-9517

Year： 2022

Volume： 413

Page： 20-30

7 . 3

JCR@2022

6 . 5 0 0

JCR@2023

ESI HC Threshold：74

JCR Journal Grade：1

CAS Journal Grade：2

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WoS CC Cited Count：

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 0

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