Study on different CeO2 structure stability during ethanol steam reforming reaction over Ir/CeO2 nanocatalysts

被引：47

作者：

Wang, Fagen ^{[1
,2
,3
]}

Zhang, Linjia ^{[1
]}

Zhu, Jiayin ^{[1
]}

Han, Bolin ^{[1
]}

Zhao, Long ^{[1
]}

Yu, Hao ^{[4
]}

Deng, Zhiyong ^{[5
]}

Shi, Weidong ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Chem & Chem Engn, Inst Green Chem & Chem Technol, 301 Xuefu Rd, Zhenjiang 212013, Peoples R China

[2] Res Ctr Fluid Machinery Engn & Technol, 301 Xuefu Rd, Zhenjiang 212013, Peoples R China

[3] Natl Univ Singapore, Suzhou Res Inst, Lab Energy & Environm Interface Engn, 377 Linquan St, Suzhou 215123, Peoples R China

[4] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Peoples R China

[5] Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Sichuan, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2018年 / 564卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Ethanol steam reforming; Structure stability; Ir/CeO2; Nanoparticles; Nanorods; HYDROGEN-PRODUCTION; CATALYSTS; SHAPE; NANOSCALE; OXIDATION; CERIA; GOLD; GAS; MORPHOLOGY; MECHANISM;

D O I：

10.1016/j.apcata.2018.07.036

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：

Structure stability of CeO2 nanoparticles and nanorods were studied for ethanol steam reforming reaction over Ir/CeO2 nanocatalysts. Characterizations of BET, XRD, HRTEM, H-2-TPR and H2O-TPD et al. were applied to analyze surface areas, sizes, morphologies, redox properties and water activation of the nanocatalysts. Performance results revealed that reaction patterns of ethanol steam reforming reaction were dependent on the structures of CeO2 supports, originating from different abilities in water activation. After long time stability tests conducted at high temperature of 923 K, the CeO2 nanoparticles maintained original polyhedral shape, while the CeO2 nanorods changed to polyhedrons. The shape variation of the nanorods was supposed to associated with OH groups combination and oxygen exchange in surface crystal planes of ceria nanorods, which diminished oxygen vacancies and reconstructed ceria morphology.

引用

页码：226 / 233

页数：8

共 24 条

[1] Hydrogen production from ethanol over Ir/CeO2 catalysts:: A comparative study of steam reforming, partial oxidation and oxidative steam reforming [J].

Cai, Weijie ;

Wang, Fagen ;

Zhan, Ensheng ;

Van Veen, A. C. ;

Mirodatos, Claude ;

Shen, Wenjie .

JOURNAL OF CATALYSIS, 2008, 257 (01) :96-107

[2]

Cai W, 2007, CATAL COMMUN, V8, P1588, DOI [10.1016/j.catcom.2007.01.017, 10.1016/j.catcom.2007.01.01.7]

[3] Oxidative steam reforming of ethanol over Ir/CeO2 catalysts: A structure sensitivity analysis [J].

Cai, Weijie ;

Wang, Fagen ;

Daniel, Cecile ;

van Veen, Andre C. ;

Schuurman, Yves ;

Descorme, Claude ;

Provendier, Helene ;

Shen, Wenjie ;

Mirodatos, Claude .

JOURNAL OF CATALYSIS, 2012, 286 :137-152

[4] New active and selective Rh-REOx-Al2O3 catalysts for ethanol steam reforming [J].

Can, Fabien ;

Le Valant, Anthony ;

Bion, Nicolas ;

Epron, Florence ;

Duprez, Daniel .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (36) :14145-14153

[5] Morphology Dependence of Catalytic Properties of Ni/CeO2 Nanostructures for Carbon Dioxide Reforming of Methane [J].

Du, Xianjun ;

Zhang, Dengsong ;

Shi, Liyi ;

Gao, Ruihua ;

Zhang, Jianping .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (18) :10009-10016

[6] The Role of Support Morphology and Impregnation Medium on the Water Gas Shift Activity of Ceria-Supported Copper Catalysts [J].

Gawade, Preshit ;

Mirkelamoglu, Burcu ;

Ozkan, Umit S. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (42) :18173-18181

[7] One-Dimensional Ceria as Catalyst for the Low-Temperature Water-Gas Shift Reaction [J].

Han, Wei-Qiang ;

Wen, Wen ;

Hanson, Jonathan C. ;

Teng, Xiaowei ;

Marinkovic, Nebojsa ;

Rodriguez, Jose A. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (52) :21949-21955

[8] The effect of the morphology of nanocrystalline CeO2 on ethanol reforming [J].

Hsiao, Wei-In ;

Lin, Ya-Shiuan ;

Chen, Yu-Chie ;

Lee, Chi-Shen .

CHEMICAL PHYSICS LETTERS, 2007, 441 (4-6) :294-299

[9] CeO2 nanorods and gold nanocrystals supported on CeO2 nanorods as catalyst [J].

Huang, PX ;

Wu, F ;

Zhu, BL ;

Gao, XP ;

Zhu, HY ;

Yan, TY ;

Huang, WP ;

Wu, SH ;

Song, DY .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (41) :19169-19174

[10] Tuning the Selectivity of Catalytic Carbon Dioxide Hydrogenation over Iridium/Cerium Oxide Catalysts with a Strong Metal-Support Interaction [J].

Li, Siwei ;

Xu, Yao ;

Chen, Yifu ;

Li, Weizhen ;

Lin, Lili ;

Li, Mengzhu ;

Deng, Yuchen ;

Wang, Xiaoping ;

Ge, Binghui ;

Yang, Ce ;

Yao, Siyu ;

Xie, Jinglin ;

Li, Yongwang ;

Liu, Xi ;

Ma, Ding .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2017, 56 (36) :10761-10765

← 1 2 3 →