Pt on SAS-CeO2 nanopowder as catalyst for the CO-WGS reaction

被引：17

作者：

Franco, Paola ^{[1
]}

Martino, Marco ^{[1
]}

Palma, Vincenzo ^{[1
]}

Scarpellini, Alice ^{[2
]}

De Marco, Iolanda ^{[1
]}

机构：

[1] Univ Salerno, Dept Ind Engn, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy

[2] Ist Italiano Tecnol, Electron Microscopy Facil, Via Morego 30, I-16163 Genoa, Italy

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 43期

关键词：

SAS-Process; Water gas shift; Ceria nanopowder; Platinum-based catalysts; SUPERCRITICAL ANTISOLVENT PRECIPITATION; CERIUM OXIDE NANOPARTICLES; WATER-OXIDIZING CATALYSTS; NANOSTRUCTURED CERIA; MANGANESE COMPOUNDS; MORPHOLOGY; SUPPORT; SIZE;

D O I：

10.1016/j.ijhydene.2018.09.041

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, we present a study on the preparation of ceria nanopowder by Supercritical Antisolvent technique and its use as catalysts support for water gas shift reaction. The effect of the concentration of ceria precursor and the solution flow rate was evaluated on particle size and granulometric distribution. The increase of concentration led to an increase in the average particle size, whereas the solution flow rate had a negligible effect. The platinum/ceria catalyst was prepared by wet impregnation and fully characterized; SEM and TEM-EDX showed a mean particle size of around 50 nm and a good dispersion of the active component. The results of the activity tests highlighted a good performance of the SAS-derived catalyst, that showed higher CO conversion with respect to a catalyst obtained from commercial ceria nanopowder. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：19965 / 19975

页数：11

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