Sacrificial Adsorbate Strategy Achieved Strong Metal-Support Interaction of Stable Cu Nanocatalysts - Details

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Abstract：

A　new　adsorbate-mediated　strategy　was　developed　to　enhance　the　metal-support　interaction　of　Cu/CeO　2　,　aiming　to　improve　its　catalytic　activity　and　sintering　resistance　in　the　water-gas　shift　(WGS)　reaction.　By　treating　Cu/CeO　2　in　a　20CO　2　/2H　2　gas　mixture　for　the　formation　of　surface　HCO　n　(n　=　2,　3),　there　was　significant　enhancement　of　the　interaction　between　CeO　2　and　Cu.　The　HCO　n　adsorbate　was　removed　through　calcination　in　an　O　2　/Ar　atmosphere　at　400　°C　for　6　h.　The　as-obtained　Cu/CeO　2　catalyst　was　compared　with　the　untreated　counterpart　in　the　WGS　reaction.　It　was　observed　that　CO　conversion　at　350　°C　was　86%　and　47%,　respectively,　over　the　two　catalysts.　The　superiority　of　the　former　is　attributed　to　the　enhanced　interaction　between　Cu　and　CeO　2　.　In　a　run　of　15　h　at　400　°C,　the　treated　catalyst　showed　no　obvious　sign　of　deactivation.　©　2018　American　Chemical　Society.

Keyword：

adsorbate; Cu/CeO 2 catalysts; heterogeneous catalysis; metal-support interaction; WGS

Community：

[ 1 ] [Wang, X.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian, 350002, China
[ 2 ] [Liu, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian, 350002, China
[ 3 ] [Peng, X.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian, 350002, China
[ 4 ] [Lin, B.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian, 350002, China
[ 5 ] [Cao, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian, 350002, China
[ 6 ] [Jiang, L.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian, 350002, China

Reprint 's Address：

[Jiang, L.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou UniversityChina

Email：

jllfzu@sina.cn

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Source ：

ACS Applied Energy Materials

ISSN： 2574-0962

Year： 2018

Issue： 4

Volume： 1

Page： 1408-1414

5 . 5 0 0

JCR@2023

ESI HC Threshold：284

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ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 2

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