Co-Fe Nanoparticles Wrapped on N-Doped Graphitic Carbons as Highly Selective CO2 Methanation Catalysts

被引：13

作者：

Jurca, Bogdan ^{[1
]}

Peng, Lu ^{[2
]}

Primo, Ana ^{[2
]}

Gordillo, Alvaro ^{[3
]}

Parvulescu, Vasile, I ^{[1
]}

Garcia, Hermenegildo ^{[2
]}

机构：

[1] Univ Bucharest, Fac Chem, Dept Organ Chem & Biochem & Catalysis, Bucharest 030016, Romania

[2] Univ Politecn Valencia, Inst Univ Tecnol Quim, CSIC, Valencia 46022, Spain

[3] BASF SE, D-67056 Ludwigshafen, Germany

来源：

ACS APPLIED MATERIALS & INTERFACES | 2021年 / 13卷 / 31期

关键词：

heterogeneous catalysis; CO2; utilization; Sabatier reaction; Co-Fe alloy nanoparticles as catalysts; Co-Fe wrapped on N-doped graphene; PHOTOCATALYTIC CONVERSION; GRAPHENE; HYDROGENATION; CLUSTER; OXIDE;

D O I：

10.1021/acsami.1c05542

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Pyrolysis of chitosan containing various loadings of Co and Fe renders Co-Fe alloy nanoparticles supported on N-doped graphitic carbon. Transmission electron microscopy (TEM) images show that the surface of Co-Fe NPs is partially covered by three or four graphene layers. These Co-Fe@(N)C samples catalyze the Sabatier CO2 hydrogenation, increasing the activity and CH4 selectivity with the reaction temperature in the range of 300-500 degrees C. Under optimal conditions, a CH4 selectivity of 91% at an 87% CO2 conversion was reached at 500 degrees C and a space velocity of 75 h(-1) under 10 bar. The Co-Fe alloy nanoparticles supported on N-doped graphitic carbon are remarkably stable and behave differently as an analogous Co-Fe catalyst supported on TiO2.

引用

页码：36976 / 36981

页数：6

共 31 条

[1] Graphene as a carbon source effects the nanometallurgy of nickel in Ni,Mn layered double hydroxide-graphene oxide composites [J].