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

[1]

[Anonymous], CHARACTERIZATION HET

[2] COx free hydrogen by methane decomposition over activated carbons [J].

Ashok, J. ;

Kumar, S. Naveen ;

Venugopal, A. ;

Kumari, V. Durga ;

Tripathi, S. ;

Subrahmanyam, M. .

CATALYSIS COMMUNICATIONS, 2008, 9 (01) :164-169

[3] COx-free H2 production via catalytic decomposition of CH4 over Ni supported on zeolite catalysts [J].

Ashok, J. ;

Kumar, S. Naveen ;

Venugopal, A. ;

Kumari, V. Durga ;

Subrahmanyam, M. .

JOURNAL OF POWER SOURCES, 2007, 164 (02) :809-814

[4] Production of COX free hydrogen by catalytic decomposition of methane over Ni/HY catalysts [J].

Ashok, Jangam ;

Kumar, Sathu Naveen ;

Subrahmanyam, Machiraju ;

Venugopal, Akula .

CATALYSIS LETTERS, 2007, 118 (1-2) :139-145

[5] Coprecipitated Ni-alumina and Ni-Cu-alumina catalysts of methane decomposition and carbon deposition .2. Evolution of the catalysts in reaction [J].

Avdeeva, LB ;

Goncharova, OV ;

Kochubey, DI ;

Zaikovskii, VI ;

Plyasova, LM ;

Novgorodov, BN ;

Shaikhutdinov, SK .

APPLIED CATALYSIS A-GENERAL, 1996, 141 (1-2) :117-129

[6] Fischer-Tropsch synthesis over iron catalysts supported on carbon nanotubes [J].

Bahome, MC ;

Jewell, LL ;

Hildebrandt, D ;

Glasser, D ;

Coville, NJ .

APPLIED CATALYSIS A-GENERAL, 2005, 287 (01) :60-67

[7] STUDIES OF HYDROGEN HELD BY SOLIDS .12. HYDROXYAPATITE CATALYSTS [J].

BETT, JAS ;

CHRISTNER, LG ;

HALL, WK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1967, 89 (22) :5535-+

[8]

BOND GC, 1987, HETEROGENEOUS CATALY, P81

[9] Hydrogen storage in graphite nanofibers [J].

Chambers, A ;

Park, C ;

Baker, RTK ;

Rodriguez, NM .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (22) :4253-4256

[10] Nonoxidative activation of methane [J].

Choudhary, TV ;

Aksoylu, E ;

Goodman, DW .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2003, 45 (01) :151-203

← 1 2 3 4 →