期刊
FUEL PROCESSING TECHNOLOGY
卷 100, 期 -, 页码 43-48出版社
ELSEVIER
DOI: 10.1016/j.fuproc.2012.03.007
关键词
ZIF-9; Hydrogen production; NaBH4; Hydrolysis; Catalyst
资金
- National Research Foundation of Korea (NRF) [2011-0027369, 2011-0022963]
- Ministry of Education, Science and Technology Republic of Korea
- National Research Foundation of Korea [과C6A2205, 2009-0089740, 2009-0093816] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
ZIF-9, one of the zeolitic imidazolate frameworks, was synthesized via solvothermal method and the feasibility of ZIF-9 as catalyst in NaBH4 hydrolysis for hydrogen production was firstly reported in detail. The experimental result showed that initial hydrogen generation rate of ZIF-9 catalyst is relatively slow due to the gradual formation of CoB active centers. And then the hydrogen generation rate increases rapidly after the formation of CoB. The hydrogen generation rate of ZIF-9 at 40 degrees C can reach up to 3641.69 ml min(-1) g(-1)(Co). It was found that the addition of NaOH can remarkably accelerate the hydrolysis rate of NaBH4. In the cycles of ZIF-9, no obvious decrease of hydrogen production rate was found which meant that ZIF-9 catalyst maintains relatively high stability. The XRD comparison before and after the cycling reaction showed that ZIF-9 maintains its basic crystal structure and crystallinity, but long range order of ZIF-9 catalyst is altered in a certain extent. (C) 2012 Elsevier B.V. All rights reserved.
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