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author：

Wang, Z. (Wang, Z..) [1] | Huang, L. (Huang, L..) [2] | Su, B. (Su, B..) [3] | Xu, J. (Xu, J..) [4] | Ding, Z. (Ding, Z..) [5] | Wang, S. (Wang, S..) [6]

Indexed by：

Scopus

Abstract：

This　work　reports　the　preparation　of　a　La2O3-modified　Pt/TiO2　(Pt/La-TiO2)　hybrid　through　an　excess-solution　impregnation　method　and　its　application　for　CO2　hydrogenation　catalysis.　The　Pt/La-TiO2　catalyst　is　characterized　by　XRD,　H2　temperature-programmed　reduction　(TPR),　TEM,　X-ray　photoelectron　spectroscopy　(XPS),　Raman,　EPR,　and　N2　sorption　measurements.　The　Pt/La-TiO2　composite　starts　to　catalyze　the　CO2　conversion　reaction　at　220　°C,　which　is　30　°C　lower　than　the　Pt/TiO2　catalyst.　The　generation　of　CH4　and　CO　of　Pt/La-TiO2　is　1.6　and　1.4　times　greater　than　that　of　Pt/TiO2.　The　CO2　temperature-programmed　desorption　(TPD)　analysis　confirms　the　strengthened　CO2　adsorption　on　Pt/La-TiO2.　Moreover,　the　in　situ　FTIR　experiments　demonstrate　that　the　enhanced　CO2　adsorption　of　Pt/La-TiO2　facilitates　the　formation　of　the　active　Pt–CO　intermediate　and　subsequently　boosts　the　evolution　of　CH4　and　CO.　The　cycling　tests　reveal　that　Pt/La-TiO2　shows　reinforced　stability　for　the　CO2　hydrogenation　reaction　because　the　La　species　can　prevent　Pt　nanoparticles　(NPs)　from　sintering.　This　work　may　provide　some　guidance　on　the　development　new　rare-metal-modified　hybrid　catalysts　for　CO2　fixation.　©　2020　Wiley-VCH　Verlag　GmbH　&　Co.　KGaA,　Weinheim

Keyword：

CO2 adsorption; CO2 hydrogenation; La2O3; Pt/TiO2; Pt–CO intermediates

Community：

  • [ 1 ] [Wang, Z.]Fujian Provincial Key Lab of Coastal Basin Environments, Fuqing Branch of Fujian Normal University, Fuqing, 350300, Fujian Province, China
  • [ 2 ] [Wang, Z.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
  • [ 3 ] [Huang, L.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
  • [ 4 ] [Su, B.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
  • [ 5 ] [Xu, J.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
  • [ 6 ] [Ding, Z.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
  • [ 7 ] [Wang, S.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China

Reprint 's Address：

  • [Ding, Z.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou UniversityChina

Email：


zxding@fzu.edu.cn
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Source ：

Chemistry - A European Journal

ISSN： 0947-6539

Year： 2020

Issue： 2

Volume： 26

Page： 517-523

5 . 2 3 6

JCR@2020

3 . 9 0 0

JCR@2023

ESI HC Threshold：160

JCR Journal Grade：2

CAS Journal Grade：3

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 17

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

Affiliated Colleges：

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