用于高效产氢的多功能Co-B 催化剂 |
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引用本文:李佳璇,王临才,仲鸣慎.用于高效产氢的多功能Co-B 催化剂[J].上海第二工业大学(中文版),2019,(1):28-35 |
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基金项目:上海第二工业大学校基金(EGD17XQD11), 上海第二工业大学研究生项目基金(EGD18YJ0072), 上海第二工业大学
重点学科建设项目(XXKZD1602), 上海市高原学科- 环境科学与工程(资源循环与工程) (A30DB182602) 资助 |
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中文摘要:通过简易的溶液沉淀法, 一步制备了几种纳米级钴硼(Co-B) 催化剂, Co-B 化合物可用作多功能催化剂, 主
要用于水解NaBH4 和电解水制氢。研究发现Co-B 的催化活性与制备工艺密切相关。以四氢呋喃(THF) 为溶剂制
备的Co-B 化合物, 当Co、B 原子比为1.8 时, Co-B 化合物展现了较高的催化活性, 催化NaBH4 水解产氢速率可达
7.45 L/(min·g)。此外, 在100 A/m2 的电流密度下, Co-B 化合物可催化电水解, 其析氢反应和析氧反应的过电位分别
为270 mV 和310 mV。 |
中文关键词:钴- 硼催化剂 硼氢化钠水解 析氢速率 全水分解 |
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Multifunctional Co-B Catalysts for Highly Efficient Hydrogen Generation |
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Abstract:Nano-scale cobalt boron (Co-B) catalysts were prepared in one step by simple solution precipitation, and Co-B compounds
were used as multifunctional catalysts for NaBH4 hydrolysis and electrolysis of hydrogen. It was found that the catalytic activity of Co-B
was closely related to the preparation process. When the ratio of Co and B was 1.8, Co-B compound prepared by using tetrahydrofuran
(THF) as solvent exhibited high catalytic activity and the hydrogen production rate of NaBH4 hydrolysis could reach 7.45 L/(min·g). In
addition, at a current density of 100 A/m2, electrohydrolysis could be catalyzed, and the overpotentials of hydrogen evolution reaction
and oxygen evolution reaction were 270 mV and 310 mV respectively. |
keywords:Co-B catalysts sodium borohydride hydrolysis hydrogen evolution rate overall water splitting |
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