Effect of MnO2 morphology on its catalytic performance in lean methane combustion - Details

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Abstract：

MnO2　with　nanocubes　and　nanorods　were　synthesized　by　a　hydrothermal　process,　and　their　structures　and　catalytic　performances　in　methane　combustion　were　investigated.　The　activity　results　show　that　methane　conversion　over　nanocubic　MnO2　is　more　than　90%　at　350　°C,　which　is　much　higher　than　that　of　MnO2　nanorods.　N2　physisorption,　XPS　and　H2-TPR　results　demonstrate　that　the　superior　catalytic　performance　of　nanocubic　MnO2　is　associated　with　its　higher　BET　surface　area,　smaller　crystalline　size,　more　surface　oxygen　vacancies　and　better　low-temperature　reducibility.　In　situ　DRFIFTS　results　demonstrate　that　the　carboxylates　species　are　the　main　intermediate　species　in　methane　oxidation.　©　2018

Keyword：

Intermediate species; Methane oxidation; Nanoparticles; Structural; X-ray techniques

Community：

[ 1 ] [Zhang, K.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China
[ 2 ] [Peng, X.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China
[ 3 ] [Cao, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China
[ 4 ] [Yang, H.]Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin, 537000, China
[ 5 ] [Wang, X.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China
[ 6 ] [Zhang, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China
[ 7 ] [Zheng, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China
[ 8 ] [Xiao, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China
[ 9 ] [Jiang, L.]Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin, 537000, China

Reprint 's Address：

[Wang, X.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou UniversityChina

Email：

xywang2017@fzu.edu.cn

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Source ：

Materials Research Bulletin

ISSN： 0025-5408

Year： 2019

Volume： 111

Page： 338-341

4 . 0 1 9

JCR@2019

5 . 3 0 0

JCR@2023

ESI HC Threshold：236

JCR Journal Grade：2

CAS Journal Grade：3

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WoS CC Cited Count：

SCOPUS Cited Count： 20

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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