Journal
ENERGY STORAGE MATERIALS
Volume 7, Issue -, Pages 222-228Publisher
ELSEVIER
DOI: 10.1016/j.ensm.2017.03.001
Keywords
Sodium borohydride (NaBH4); Hydrolysis; Regeneration; Hydrogen storage; Hydrogen production
Funding
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [NSFC51621001]
- National Natural Science Foundation of China Projects [51431001]
- International Science & Technology Cooperation Program of China [2015DFA51750]
- Guangdong Natural Science Foundation [2014A030311004, 2014GKXM011]
- Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme
Ask authors/readers for more resources
The hydrolysis of NaBH4 offers significant advantages for hydrogen storage in fuel cells, whereby suffers from the irreversibility. Thus, a simple and low cost method for NaBH4 regeneration from its hydrolysis byproduct is crucial. Herein, we describe a single step method for NaBH4 regeneration, which combines both hydrogen production and storage in the one step. In the process, a mixture of magnesium silicide and dihydrate sodium metaborate is reacted via ball milling under ambient conditions without the requirements of additional hydrogen sources. The hydrogen only comes from the splitting of H2O in the NaBO2 . 2H(2)O that is a direct byproduct of NaBH4 hydrolysis. The purified product demonstrates the same physicochemical properties as commercial NaBH4. Yields for NaBH4 regeneration approaching 80% are achieved using this method. Mechanism study indicates that the high yield is likely to be beneficial from the formation of the Mg-O-Si-H conjugated structure. NaBH4 regeneration using this process demonstrates a 30-fold reduction in cost over a previous study that used MgH2 as the reduction agent.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available