Pure H2 production by decomposition of methane over Ni supported on hydroxyapatite catalysts

被引：40

作者：

Ashok, J. ^{[1
]}

Naveen Kumar, S. ^{[1
]}

Subrahmanyam, M. ^{[1
]}

Venugopal, A. ^{[1
]}

机构：

[1] Indian Inst Chem Technol, Catal & Phys Chem Div, Hyderabad 500007, Andhra Pradesh, India

来源：

CATALYSIS LETTERS | 2008年 / 121卷 / 3-4期

关键词：

hydroxyapatite; methane decomposition; hydrogen production; carbon filaments; Ni metal area;

D O I：

10.1007/s10562-007-9334-z

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：

The catalytic decomposition of CH4 for the production of pure H-2 is carried out over Ni supported on hydroxyapatite [Ca-5(PO4)(3)(OH)] catalysts at 650 degrees C and atmospheric pressure. CH4 decomposition activity is decreased with time on stream and finally deactivated completely. The physicochemical properties of the fresh catalysts are characterized by XRD, DTA/TG, TPR and SEM techniques along with CHNS analyses of the used samples. It is found that the 30 wt% Ni/HAp displayed higher H-2 production rates over the other Ni loadings, which is correlated with Ni metal surface area measured by O-2 pulse chemisorption.

引用

页码：283 / 290

页数：8

共 32 条

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Subrahmanyam, M. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2007, 32 (12) :1782-1788

[32] Hydroxyapatite as a novel support for gold and ruthenium catalysts - Behaviour in the water gas shift reaction [J].

Venugopal, A ;

Scurrell, MS .

APPLIED CATALYSIS A-GENERAL, 2003, 245 (01) :137-147

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