Support effect of Ni/mesoporous silica catalysts for CO2 reforming of CH4

被引：9

作者：

Chen, Jing ^{[1
,2
]}

Piao, Wen Xiang ^{[1
,2
]}

Jin, Long Yi ^{[1
,2
]}

Li, Zhenghua ^{[3
]}

Zhang, Fan ^{[1
,2
]}

Kim, Ji Man ^{[3
]}

Jin, Mingshi ^{[1
,2
]}

机构：

[1] Yanbian Univ, Key Lab Nat Resource Changbai Mt & Funct Mol, Minist Educ, Pk Rd 977, Yanji 133002, Peoples R China

[2] Yanbian Univ, Dept Chem, Coll Sci, Pk Rd 977, Yanji 133002, Peoples R China

[3] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2018年 / 44卷 / 06期

基金：

新加坡国家研究基金会; 中国国家自然科学基金;

关键词：

Ni catalyst; Impregnation; Mesoporous silica; Methane reforming; Carbon dioxide; CARBON-DIOXIDE; SYNTHESIS GAS; NICKEL-CATALYSTS; NI CATALYSTS; PARTIAL OXIDATION; MESOPOROUS SILICAS; SOLID-SOLUTION; NOBLE-METALS; METHANE; PERFORMANCE;

D O I：

10.1007/s11164-018-3389-x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mesoporous silica KIT-6-, SBA-15-, and MCM-41-supported Ni catalysts (Ni/KIT-6, Ni/SBA-15, and Ni/MCM-41) were prepared via impregnation method and studied for CO2 reforming of CH4. The catalysts were characterized by X-ray diffraction analysis, N-2 physisorption measurements, scanning electron microscopy, transmission electron microscopy, and temperature-programmed oxidation (O-2-TPO). The Ni/KIT-6 catalyst exhibited higher catalytic activity and long-term stability compared with Ni/SBA-15 or Ni/MCM-41. The conversion of CH4 and CO2 over Ni/KIT-6 was 99 and 99 %, respectively. The superior catalytic behavior of Ni/KIT-6 is closely related to the large-pore cubic Ia3d structure of KIT-6, which enhanced dispersion of Ni nanoparticles, reduced carbon deposition, and increased diffusion of reactant and products. [GRAPHICS] .

引用

页码：3867 / 3878

页数：12

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