New electroless plating method for preparation of highly active Co-B catalysts for NaBH4 hydrolysis

Muir, Sean S. and Chen, Zhigang and Wood, Barry J. and Wang, Lianzhou and Lu, G. Q. (Max) and Yao, Xiangdong (2014) New electroless plating method for preparation of highly active Co-B catalysts for NaBH4 hydrolysis. International Journal of Hydrogen Energy, 39 (1). pp. 414-425. ISSN 0360-3199

Abstract

Supported non-noble transition metal catalysts are ideal for use in NaBH4-based hydrogen storage systems because of their low cost, robustness, and ease of handling. We have developed a new low-temperature electroless plating method for preparation of Co-B catalysts supported on Ni foam. This method requires only one plating step to achieve the desired catalyst loading, and has higher loading efficiency than conventional multi-step methods. The produced Co-B catalyst shows higher NaBH4 hydrolysis activity than those prepared by conventional methods due to increased boron content and nanosheet-like morphology. The pH and NH3 concentration of the precursor solution were found to have considerable influences on both the catalyst loading and activity. Temperature dependence of hydrogen generation suggests that the catalytically active phase is formed in situ above a certain temperature threshold, which is supported by XPS analysis. The maximum specific hydrogen generation rate is in excess of 24,000 mL min-1 g -1, which is among the highest values for catalysts of this type reported in the literature.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 08 Jun 2017 23:42
Last Modified: 08 Jun 2017 23:42
Uncontrolled Keywords: cobalt; electroless plating; hydrogen storage; hydrolysis catalyst; sodium borohydride; conventional methods; electroless plating methods; hydrogen generations; hydrogen storage system; sodium boro hydrides; temperature dependence; temperature thresholds; transition metal catalysts; chemical products generally; chemical agents and basic industrial chemicals; chemical reactions; naval vessels; others, incl. bismuth, boron, cadmium, cobalt, mercury, niobium, selenium, silicon, tellurium; electroless plating; gas fuels
Fields of Research : 09 Engineering > 0904 Chemical Engineering > 090499 Chemical Engineering not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Identification Number or DOI: 10.1016/j.ijhydene.2013.10.022
URI: http://eprints.usq.edu.au/id/eprint/31702

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