In situ synthesized spherical nickel-silica composite particles for hydrolytic dehydrogenation of ammonia borane

被引：13

作者：

Umegaki, Tetsuo ^{[1
]}

Xu, Qiang ^{[2
]}

Kojima, Yoshiyuki ^{[1
]}

机构：

[1] Nihon Univ, Coll Sci & Engn, Dept Mat & Appl Chem, Chiyoda Ku, Tokyo 1018308, Japan

[2] Natl Inst Adv Ind Sci & Technol, Ikeda, Osaka 5638577, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 580卷

关键词：

In situ synthesized; Spherical nickel-silica composite particles; Hydrolytic dehydrogenation; Ammonia borane; HOLLOW SPHERES; HYDROGEN GENERATION; NANOPARTICLES; POLYMERIZATION; CATALYST; TITANIA;

D O I：

10.1016/j.jallcom.2013.02.067

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：

Spherical nickel-silica composite particles were synthesized by sol-gel based method in various solvents followed by in situ activation in aqueous sodium borohydride (NaBH4)/ammonia borane (NH3BH3) solutions. The resulting products prepared in methyl alcohol, ethyl alcohol, and 2-propyl alcohol include spherical particles with the diameters of 600-800, 200-400 nm, and 200-400 nm, respectively. The evolution of 56, 58, and 62 mL hydrogen was finished in about 50, 90, and 65 min in the presence of the spherical nickel-silica composite particles from aqueous NaBH4/NH3BH3, respectively. Introducing additional aqueous ammonia borane solution to the solution including the in situ synthesized particles, the evolution of 58, 50, and 63 mL hydrogen was finished in about 45, 90, and 45 min, respectively, indicating that all the in situ synthesized particles have the recyclability as the catalysts for hydrolysis of NH3BH3. The in situ synthesized particles prepared in methyl alcohol and 2-propyl alcohol show higher rate and amount of hydrogen evolution than in situ synthesized particles prepared in ethyl alcohol. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：S313 / S316

页数：4

共 26 条

[1] Highly monodisperse zirconia-coated silica spheres and zirconia/silica hollow spheres with remarkable textural properties [J].

Arnal, Pablo M. ;

Weidenthaler, Claudia ;

Schueth, Ferdi .

CHEMISTRY OF MATERIALS, 2006, 18 (11) :2733-2739

[2] Structure of Ni(II) and Ru(III) ammine complexes grafted onto mesoporous silicate sieve [J].

Brühwiler, D ;

Frei, H .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (33) :8547-8556

[3] Mesoporous silica synthesized by solvent evaporation: Spun fibers and spray-dried hollow spheres [J].

Bruinsma, PJ ;

Kim, AY ;

Liu, J ;

Baskaran, S .

CHEMISTRY OF MATERIALS, 1997, 9 (11) :2507-2512

[4] Organic-inorganic hybrid hollow spberes prepared from TiO2-stabilized pickering emulsion polymerization [J].

Chen, Tao ;

Colver, Patrick J. ;

Bon, Stefan A. F. .

ADVANCED MATERIALS, 2007, 19 (17) :2286-+

[5] Polymersomes: Tough vesicles made from diblock copolymers [J].

Discher, BM ;

Won, YY ;

Ege, DS ;

Lee, JCM ;

Bates, FS ;

Discher, DE ;

Hammer, DA .

SCIENCE, 1999, 284 (5417) :1143-1146

[6] Preparation and characterization of titania-coated polystyrene spheres and hollow titania shells [J].

Imhof, A .

LANGMUIR, 2001, 17 (12) :3579-3585

[7] Some new developments in the synthesis, functionalization, and utilization of monodisperse colloidal spheres [J].

Jeong, U ;

Wang, YL ;

Ibisate, M ;

Xia, YN .

ADVANCED FUNCTIONAL MATERIALS, 2005, 15 (12) :1907-1921

[8] A lost-wax approach to monodisperse colloids and their crystals [J].

Jiang, P ;

Bertone, JF ;

Colvin, VL .

SCIENCE, 2001, 291 (5503) :453-457

[9] ZIF-8 immobilized nickel nanoparticles: highly effective catalysts for hydrogen generation from hydrolysis of ammonia borane [J].

Li, Pei-Zhou ;

Aranishi, Kengo ;

Xu, Qiang .

CHEMICAL COMMUNICATIONS, 2012, 48 (26) :3173-3175

[10] Hollow spheres of mesoporous aluminosilicate with a three-dimensional pore network and extraordinarily high hydrothermal stability [J].

Li, YS ;

Shi, JL ;

Hua, ZL ;

Chen, HR ;

Ruan, ML ;

Yan, DS .

NANO LETTERS, 2003, 3 (05) :609-612

← 1 2 3 →