Improved performance of Mn ion substituted Ceria nanospheres for water gas shift reaction: Influence of preparation conditions

Bhairi, Lakshminarayana and Sarker, Surajit and Ch, Subrahmanyam (2018) Improved performance of Mn ion substituted Ceria nanospheres for water gas shift reaction: Influence of preparation conditions. Materials Research Bulletin, 103. pp. 309-318. ISSN 0025-5408

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Abstract

The present study reports the development of noble metal free nano-catalysts for low-temperature CO oxidation and Water gas shift reaction. Mn-substituted CeO2 solid solution catalysts were synthesized by co-precipitation, combustion and hydrothermal methods and characterized by various physicochemical techniques. The formation of the solid solution was confirmed by XRD. Raman spectroscopic confirmed the oxygen vacancies. The surface area, pore volume and pore size distribution confirmed by N2 physisorption analysis, whereas, XPS, UV–vis diffuse reflectance spectroscopy confirmed the oxidation state of the Mn ion. The particle size and morphology (spherical shape) of the material was confirmed using FESEM and HRTEM analysis. The resultant Ce1-xMnxO2-δcatalysts were subjected to CO oxidation and influence of various parameters was examined. Typical results indicated that the co-precipitation favored the best active catalyst.

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IITH Creators:	IITH Creators ORCiD Ch, Subrahmanyam https://orcid.org/0000-0002-2643-3854
Item Type:	Article
Uncontrolled Keywords:	Ce0.8Mn0.2O2-δCO oxidationDifferent synthetic methods and calcination temperaturePhysicochemical characterizationWater gas shift reaction (WGS)
Subjects:	Chemistry
Divisions:	Department of Chemistry
Depositing User:	Team Library
Date Deposited:	24 Apr 2018 04:32
Last Modified:	24 Apr 2018 04:32
URI:	http://raiithold.iith.ac.in/id/eprint/3883
Publisher URL:	http://doi.org/10.1016/j.materresbull.2018.03.037
OA policy:	http://www.sherpa.ac.uk/romeo/issn/0025-5408/
Related URLs:	Google Scholar

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