Encapsulating Ni/CeO2-ZrO2 with SiO2 layer to improve it catalytic activity for steam reforming of toluene

被引：33

作者：

Zhao, Xiaoyong ^{[1
,2
,3
]}

Xue, Yaping ^{[1
]}

Lu, Zhuoxin ^{[1
]}

Huang, Ying ^{[1
]}

Guo, Changqing ^{[1
]}

Yan, Changfeng ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China

[2] Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2017年 / 101卷

关键词：

Biomass tar; Toluene; Steam reforming; Core-shell catalyst; NI-BASED CATALYSTS; GAS SHIFT REACTION; BIOMASS GASIFICATION; NICKEL-CATALYSTS; MODEL-COMPOUND; TAR; CONVERSION; SUPPORT; PERFORMANCE; METAL;

D O I：

10.1016/j.catcom.2017.08.013

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：

Ni/CeO2-ZrO2 was encapsulated by SiO2 layer with expectation to obtain a high active catalyst for steam reforming of toluene. The coating structure was validated by X-ray diffraction experiments and electron microscope analysis. XPS data suggests the formation of a new Ni-O-Si configuration in core-shell catalysts. The presence of Ni-O-Si configuration shift electron from Ni to silica and thereby facilitates the intrinsic properties of catalysts. Compared to Ni/CeO2-ZrO2, turnover rate of Ni increased substantially in core-shell structures, Ni/CeO2-ZrO2@SiO2 with shell-to-core mass ratio as 1.0 showed about 5.5 times higher than the Ni/CeO2-ZrO2 catalyst.

引用

页码：138 / 141

页数：4

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