Issue 31, 2010
From the journal:

Journal of Materials Chemistry

Bimetallic catalysts selectively grown via N-doped carbon nanotubes for hydrogen generation

Weon Ho Shin,a   Hyung Mo Jung,a   Yoon Jeong Choi,a   Keiichi Miyasakab  and  Jeung Ku Kang*ab  

* Corresponding authors

a Department of Materials Science & Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
E-mail: jeungku@kaist.ac.kr
Fax: +82-42-350-3310
Tel: +82-42-350-3338

b Division of Graduate School of EEWS, Korea Advanced Institute of Science & Technology, 373-1, Guseong Dong, Yuseong Gu, Daejeon, Republic of Korea

Abstract

This work provides both a facile method to synthesize bimetallic catalysts (BMCs) via pyridine-like N atoms of N-doped carbon nanotubes (NDCNTs) and also a picture about how to design the optimal BMC for hydrogen generation from the hydrogen storage material. In principle, the ratio of one component to another component could be generically extended to fabricate the high-performance BMCs on host nanostructures. Indeed, we demonstrate that the BMC composed of the optimum composition (Ni0.72Pt0.28) results in the large hydrogen generation of ∼28 kg h−1/kg of catalyst from an aqueous borane ammonia hydrogen storage, thus being capable of satisfying the DOE target (7.2 kg h−1) required for advanced applications even with the small amount of our BMC attached onto the NDCNTs. This high hydrogen generation rate is found to be attributed to the optimal distance between active Pt and cheap Ni atoms for effective hydrogen generation.

Graphical abstract: Bimetallic catalysts selectively grown via N-doped carbon nanotubes for hydrogen generation

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Article information

DOI
https://doi.org/10.1039/C0JM01126F
Article type
Paper
Submitted
20 Apr 2010
Accepted
12 May 2010
First published
30 Jun 2010

J. Mater. Chem., 2010,20, 6544-6549

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Bimetallic catalysts selectively grown via N-doped carbon nanotubes for hydrogen generation

W. H. Shin, H. M. Jung, Y. J. Choi, K. Miyasaka and J. K. Kang, J. Mater. Chem., 2010, 20, 6544 DOI: 10.1039/C0JM01126F

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