Constructing the Ni-O-Ce interface to enhance the activity and stability for partial oxidation of methane to syngas under high temperatures - Details

author：

Indexed by：

Scopus

Abstract：

Catalyst　interface　determines　the　activity　and　stability　of　partial　oxidation　of　methane　(POM)　toward　syngas　under　high　temperatures　crucially.　Herein,　Ni　catalysts　supported　on　CeO2　were　prepared　under　different　pretreatment　atmospheres　to　construct　an　optimal　and　robust　interface.　Ni/CeO2　catalyst　pretreated　in　H2　(Ni/CeO2-H2)　exhibits　the　higher　activity　and　the　better　stability　than　Ni/CeO2-Ar　and　Ni/CeO2-air　catalysts.　The　Ni-O-Ce　interfacial　site　in　Ni/CeO2-H2　catalyst　shows　the　lower　reduction　temperature,　indicating　the　enhanced　H-spillover　effect　and　enhanced　oxidation　resistance　of　Ni　under　POM　conditions.　Moreover,　the　XPS　and　in　situ　Raman　results　show　that　Ni/CeO2-H2　contains　more　surface　oxygen　vacancies　for　adsorbing　and　activating　oxygen,　further　contributing　to　the　reaction　activity.　The　in　situ　DRIFTS　results　indicate　that　the　CH4　could　react　with　the　lattice　oxygen　to　form　formate　and　carbonate,　and　further　decompose　to　CO　and　CO2.　These　findings　deepen　the　fundamental　understanding　of　Ni/CeO2　catalysts　for　POM　reaction.　©　2024　Elsevier　Inc.

Keyword：

Ceria DRIFTS In-situ Raman Interface Metal support interaction Methane reforming Nickel Oxygen vacancy Partial oxidation of methane Pretreatment Syngas

Community：

[ 1 ] [Xu Y.]Institute of Molecular Engineering Plus, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [Chen R.]Institute of Molecular Engineering Plus, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 3 ] [Lin H.]Institute of Molecular Engineering Plus, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 4 ] [Lv Q.]Institute of Molecular Engineering Plus, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 5 ] [Liu B.]Institute of Molecular Engineering Plus, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 6 ] [Wu L.]Institute of Molecular Engineering Plus, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 7 ] [Tan L.]Institute of Molecular Engineering Plus, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 8 ] [Dai Y.]Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
[ 9 ] [Zong X.]Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
[ 10 ] [Tang Y.]Institute of Molecular Engineering Plus, College of Chemistry, Fuzhou University, Fuzhou, 350108, China

Reprint 's Address：

Email：

Show more details

Related Keywords：

Source ：

Journal of Catalysis

ISSN： 0021-9517

Year： 2024

Volume： 435

6 . 5 0 0

JCR@2023

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 1

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

Affiliated Colleges：

Get Fulltext

DOI Library Discovery Baidu Scholar Search SCOPUS

Type
Departments

All Years Choose Year From to