Next Article in Journal
Effect of Preparation Method of Co-Ce Catalysts on CH4 Combustion
Next Article in Special Issue
Perovskites as Catalysts in Advanced Oxidation Processes for Wastewater Treatment
Previous Article in Journal
New Oxidovanadium(IV) Complexes with 2,2′-bipyridine and 1,10-phenathroline Ligands: Synthesis, Structure and High Catalytic Activity in Oxidations of Alkanes and Alcohols with Peroxides
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Catalysts 2019, 9(3), 218;

K-Modulated Co Nanoparticles Trapped in La-Ga-O as Superior Catalysts for Higher Alcohols Synthesis from Syngas

Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300350, China
Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China
Key Laboratory of Function-oriented Porous Materials of Henan Province, Luoyang Normal University, Luoyang 471934, China
Department of Material Science and Engineering, KTH Royal Institute of Technology, 11428 Stockholm, Sweden
Authors to whom correspondence should be addressed.
Received: 11 February 2019 / Revised: 21 February 2019 / Accepted: 22 February 2019 / Published: 27 February 2019
(This article belongs to the Special Issue Catalysis by Metals on Perovskite-Type Oxides)
Full-Text   |   PDF [3180 KB, uploaded 27 February 2019]   |  


Owing to the outstanding catalytic performance for higher alcohol synthesis, Ga-Co catalysts have attracted much attention. In view of their unsatisfactory stability and alcohol selectivity, herein, K-modulated Co nanoparticles trapped in La-Ga-O catalysts were prepared by the reduction of La1−xKxCo0.65Ga0.35O3 perovskite precursor. Benefiting from the atomic dispersion of all the elements in the precursor, during the reduction of La1−xKxCo0.65Ga0.35O3, Co nanoparticles could be confined into the K-modified La-Ga-O composite oxides, and the confinement of La-Ga-O could improve the anti-sintering performance of Co nanoparticles. In addition, the addition of K modulated parts of La-Ga-O into La2O3, which ameliorated the anti-carbon deposition performance. Finally, the addition of K increased the dispersion of cobalt and provided more electron donors to metallic Co, resulting in a high activity and superior selectivity to higher alcohols. Benefiting from the above characteristics, the catalyst possesses excellent activity, good selectivity, and superior stability. View Full-Text
Keywords: perovskite-type oxide (PTO); cobalt; gallium; potassium; higher alcohols; syngas perovskite-type oxide (PTO); cobalt; gallium; potassium; higher alcohols; syngas

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Guo, S.; Liu, G.; Han, T.; Zhang, Z.; Liu, Y. K-Modulated Co Nanoparticles Trapped in La-Ga-O as Superior Catalysts for Higher Alcohols Synthesis from Syngas. Catalysts 2019, 9, 218.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Catalysts EISSN 2073-4344 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top