Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 44, Issue 26, Pages 13185-13194Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.01.123
Keywords
Sodium borohydride; Methanolysis; Electroless plating; Electroplating; Catalyst
Categories
Funding
- National Natural Science Foundation of China [21476020, U1705253]
- Beijing Municipal Science and Technology program
- Changjiang Scholars and Innovative Research Team in University [IRT1205]
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In this work, a spherical spider web-like structure Ru-Ni/Ni foam catalyst was prepared for hydrogen evaluation from sodium borohydride (NaBH4) by a combination of electroless plating and electroplating. Microstructure, surface morphology, surface area and elemental composition of the Ru-Ni/Ni foam catalyst were analyzed by X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM-EDS and X-ray Photoelectron Spectroscopy (XPS), Brunauere-Emmette-Teller method (BET, AS-1C-VP), respectively. The influences of Ru-Ni with different molar ratios, NaOH concentration, NaBH4 concentration, and solution temperature on the hydrogen production rate were investigated in this paper. The results showed that the Ru-Ni metals were arrayed densely and uniformly on the surface of Ni foam. The average hydrogen production rate is 360 mL min(-1) g(-1) in 20 wt % of NaBH4, 1 wt % of NaOH at 30 degrees C in the presence of the Ru-Ni/Ni foam catalysts. The calculated activation energy was 39.96 kJ mol(-1) for hydrogen production from sodium borohydride using the Ru-Ni/Ni foam catalyst. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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