期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 563, 期 -, 页码 112-119出版社
ELSEVIER
DOI: 10.1016/j.colsurfa.2018.12.002
关键词
Hydrogen generation; Hydrolysis of NaBH4; Nano catalyst; Nanoporous graphene oxide; Co nanoparticles
资金
- National Natural Science Foundation of China [51771164, 51571173, 51701175]
- National Postdoctoral Program for Innovative Talents [BX201700204]
Non-noble metal Co nano catalyst anchored on novel nanoporous graphene oxide (PGO) was successfully prepared for hydrolysis of NaBH4. The PGO was obtained by calcinating graphene oxide (GO) and Na2MoO4. During calcination, Na2MoO4 etched GO planes and plenty of nanopores with an average size of 20 nm was imported on the surface of GO. The nanopores provided binding sites for exactly-sized Co nanoparticles (NPs) to locate in GO, which could strengthen interaction between the Co NPs and PGO. The as-prepared Co/PGO exhibited a glorious catalytic activity on NaBH4 hydrolysis in alkaline condition, with a high hydrogen generation rate (HGR) 5955 mL(H2). min(-1).g(M)(-1) at room temperature. Furthermore, The PGO facilitated reusability of the catalyst Co particles, with a retention rate 73% in HGR after five cycles. This work provided a potential strategy for preparing an efficient and non-noble catalyst for hydrogen generation from NaBH4 hydrolysis.
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