Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (6): 648-652.DOI: 10.15541/jim20170358

• Orginal Article • Previous Articles     Next Articles

Hydrogen Generation from Hydrolysis of Sodium Borohydride Using Co3O4 Hollow Microspheres Synthesized with Yeast Template

WEI Lei, MA Mai-Xia, LU Yan-Hong, WANG Dong-Sheng, ZHANG Su-Ling, ZHAO Di, MA Wei-Pan   

  1. College of Chemistry and Materials Science, Langfang Normal University, Langfang 065000, China;
  • Received:2017-08-17 Revised:2017-09-19 Published:2018-06-20 Online:2018-05-24
  • Supported by:
    Natural Science Foundation of Hebei Province (B2017408042);Research Project of Hebei Education Department (BJ2016044, QN2017128);Research Project of Langfang Normal University (LSLB201701)

Abstract:

Co(OH)3 was firstly deposited on the surface of yeast template, and then Co3O4 hollow microspheres (denoted as Co3O4-HM) were successfully achieved by calcination. Co3O4-HM were employed as catalyst precursor for hydrogen generation from the hydrolysis of sodium borohydride. Field-emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) were used for morphology and phase analyses, respectively. When NaBH4 concentration is 10wt% in alkaline solution, the as-synthesized Co3O4-HM present high hydrogen generation rate up to 2140 mL/(min·g) at 25℃, which is almost nine times of that of Co3O4 synthesized without yeast template at the same condition. Furthermore, the Co3O4-HM show excellent stability for long-term storage.

 

Key words: hydrogen generation, sodium borohydride, Co3O4, yeast, template method

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