Enhanced hydrogen generation by hydrolysis of Mg doped with flower-like MoS2 for fuel cell applications

标题

Enhanced hydrogen generation by hydrolysis of Mg doped with flower-like MoS2 for fuel cell applications

作者

作者:Huang, MH (Huang, Minghong)^[1 ]; Ouyang, LZ (Ouyang, Liuzhang)^[1,2 ]; Liu, JW (Liu, Jiangwen)^[1 ]; Wang, H (Wang, Hui)^[1 ]; Shao, HY (Shao, Huaiyu)^[3 ]; Zhu, M (Zhu, Min)^[1 ]

期刊信息

摘要

In this work, flower-like MoS2 spheres are synthesized via a hydrothermal method and the catalytic activity of the as-prepared and bulk MoS2 on hydrolysis of Mg is systematically investigated for the first time. The Mg-Moss composites are prepared by ball milling and the hydrogen generation performances of the composites are investigated in 3.5% NaCl solution. The experimental results suggest that the as prepared MoS2 exhibits better catalytic effect on hydrolysis of Mg compared to bulk MoS2. In particular, Mg-10 wt% MoS2 (as-prepared) composite milled for 1 h shows the best hydrogen generation properties and releases 90.4% of theoretical hydrogen generation capacity within 1 min at room temperature. The excellent catalytic effect of as-prepared MoS2 may be attributed to the following aspects: three-dimensional flower-like MoS2 architectures improve its dispersibility on Mg particles; make the composite more reactive; hamper the generated Mg(OH)(2) from adhering to the surface of Mg; and increase the galvanic corrosion of Mg. In addition, a hydrogen generator based on the hydrolysis reaction of Mg-0.2 wt% MoS2 composite is manufactured and it can supply a maximum hydrogen flow rate of 2.5 L/min. The findings here demonstrate the as-prepared flower-like MoS2 can be a promising catalyst for hydrogen generation from Mg. (C) 2017 Elsevier B.V. All rights reserved.

关键词

作者关键词:Hydrogen generation; Mg-based materials; Hydrolysis; Flower-like MoS2

作者信息

作者信息

通讯作者地址:Ouyang, LZ (通讯作者)

South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.   增强组织信息的名称     South China University of Technology

通讯作者地址:Shao, HY (通讯作者)

Univ Macau, IAPME, Macau, Peoples R China.   增强组织信息的名称     University of Macau

地址:

	[ 1 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 2 ] Key Lab Fuel Cell Technol Guangdong Prov, China Australia Joint Lab Energy & Environm Mat, Guangzhou 510641, Guangdong, Peoples R China
	[ 3 ] Univ Macau, IAPME, Macau, Peoples R China   增强组织信息的名称     University of Macau

电子邮件地址:mcouyang@scut.edu.cn; hshao@umac.mo

出版商

ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS

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