Influence of Zr, Ce, and La on Co3O4 catalyst for CO2 methanation at low temperature

Yuwen Zhou; Yuexiu Jiang; Zuzeng Qin; Qinruo Xie; Hongbing Ji

doi:10.1016/j.cjche.2017.10.014

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Influence of Zr, Ce, and La on Co₃O₄ catalyst for CO₂ methanation at low temperature

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Influence of Zr, Ce, and La on Co₃O₄ catalyst for CO₂ methanation at low temperature
- Influence of Zr, Ce, and La on Co₃O₄ catalyst for CO₂ methanation at low temperature
- 中国化学工程学报（英文版） 2018年26卷第4期页码：768-774
- Affiliations：
  
  1. 2 School of Chemistry, Sun Yat-sen University,Guangzhou,China,510275
  2. 3 School of Biology and Chemical Engineering, Guangxi University of Science and Technology,Liuzhou,China,545006
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.10.014
  中图分类号：
- 纸质出版：2018
- Accepted：
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Yuwen Zhou, Yuexiu Jiang, Zuzeng Qin, 等. Influence of Zr, Ce, and La on Co₃O₄ catalyst for CO₂ methanation at low temperature[J]. 中国化学工程学报（英文版）, 2018,26(4):768-774. DOI: 10.1016/j.cjche.2017.10.014.

O
Yuwen Zhou, Yuexiu Jiang, Zuzeng Qin, 等. Influence of Zr, Ce, and La on Co₃O₄ catalyst for CO₂ methanation at low temperature[J]. 中国化学工程学报（英文版）, 2018,26(4):768-774. DOI: 10.1016/j.cjche.2017.10.014. DOI：

O DOI： 10.1016/j.cjche.2017.10.014.

摘要

Abstract

The Co

and Zr-

Ce-

and La-Co

catalysts were prepared

characterized

and applied to produce CH

from CO

catalytic hydrogenation in low temperature as 140-220℃. The results indicated that the addition of Zr

or La to the Co

decreased the crystallite sizes of Co and the outer-shell electron density of Co

and increased the specific surface area

which would provide more active sites for the CO

methanation. Especially

the addition of Zr also changed the reducing state of Co

via an obvious change in the interaction between Co

and ZrO

. Furthermore

Zr doped into the Co

increased the basic intensity of the weak and medium basic sites

as well as the amount of Lewis acid sites

and Brønsted acid sites were also found on the Zr-Co

surface. The introduction of Zr

or La favored the production of CH

and the Zr-Co

catalyst exhibited the highest CO

conversion (58.2%) and CH

selectivity (100%) at 200℃

and 0.5 MPa with a gaseous hourly space velocity of 18

000 ml·g

cat

-1

·h

-1

and the catalytic activity of CO

methanation for the Zr-

Ce-

and La-Co

exhibited more stable than Co

in a 20-h reaction.

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