无机材料学报 ›› 2018, Vol. 33 ›› Issue (6): 648-652.DOI: 10.15541/jim20170358 CSTR: 32189.14.10.15541/jim20170358

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酵母菌模板辅助合成Co3O4空心微球催化NaBH4水解制氢

魏磊, 马麦霞, 卢艳红, 王东升, 张素玲, 赵娣, 马卫攀   

  1. 廊坊师范学院 化学与材料科学学院, 廊坊 065000;
  • 收稿日期:2017-08-17 修回日期:2017-09-19 出版日期:2018-06-20 网络出版日期:2018-05-24
  • 基金资助:
    河北省自然科学基金(B2017408042);河北省教育厅资助项目(BJ2016044, QN2017128);廊坊师范学院科学研究项目(LSLB201701)

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)

摘要:

预先在酵母菌模板表面沉积Co(OH)3, 经高温煅烧后成功制得Co3O4空心微球, 并作为前驱体催化NaBH4水解制氢。通过场发射扫描电镜(FE-SEM)和X射线衍射(XRD)进行样品的微观形貌和物相分析。研究结果表明, 当反应液中NaBH4含量为10wt%时, 模板法制备的Co3O4空心微球催化产氢速率高达2140 mL/(min•g) (25℃), 约是同等条件下无模板制备Co3O4活性的9倍, 且所制备的Co3O4空心微球长期储存性能良好。

 

关键词: 制氢, 硼氢化钠, Co3O4, 酵母菌, 模板法

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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