Hydrogen generation via hydrolysis of magnesium with seawater using Mo, MoO2, MoO3 and MoS2 as catalysts

标题

Hydrogen generation via hydrolysis of magnesium with seawater using Mo, MoO2, MoO3 and MoS2 as catalysts

作者

作者:Huang, MH (Huang, Minghong)^[1 ]; Ouyang, LZ (Ouyang, Liuzhang)^[1 ]; Ye, JS (Ye, Jianshan)^[2 ]; Liu, JW (Liu, Jiangwen)^[1 ]; Yao, XD (Yao, Xiangdong)^[3 ]; Wang, H (Wang, Hui)^[1 ]; Shao, HY (Shao, Huaiyu)^[4 ]; Zhu, M (Zhu, Min)^[1 ]

期刊信息

摘要

Hydrogen generation is one of the enabling technologies for realization of hydrogen economy. In this study, we developed a high-performance hydrogen generation system using the transition metal Mo and its compounds (MoS2, MoO2, and MoO3) for catalyzing the hydrolysis of Mg composites in seawater. These Mg-based composites for the hydrolysis process were synthesized through a simple planetary ball mill technique. The results demonstrate that small amounts of added MoS2 could significantly accelerate and enhance the hydrolysis reaction of Mg in seawater. In particular, the Mg-10 wt% MoS2 composite releases 838 mL g(-1) hydrogen in 10 min (about 89.8% of the theoretical hydrogen generation yield), and the recycled catalysts exhibit high cycle stability, which is the most significant achievement in this study. In addition, Mo, MoO2, and MoO3 also showed similar enhancement in the hydrolysis reaction of Mg. The activation energies for the hydrolysis of Mg decreased from 63.9 kJ mol(-1) to 27.6 kJ mol(-1), 20.4 kJ mol(-1), 14.3 kJ mol(-1), and 12.1 kJ mol(-1) on introducing Mo, MoS2, MoO2, and MoO3, respectively. The attractive hydrolysis performance of the composites of Mg milled with Mo and its compounds in seawater may shed light on future developments of hydrogen generation technologies.

关键词

KeyWords Plus:HIGHLY EFFICIENT CATALYSTS; AMMONIA BORANE; SODIUM-BOROHYDRIDE; H-2 GENERATION; FUEL-CELL; MG; NANOPARTICLES; WATER; NI; COMPOSITE

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 ] South China Univ Technol, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 3 ] Griffith Univ, China Australia Joint Lab Energy & Environm Mat, Sch Biomol & Phys Sci, Nathan, Qld 4111, Australia   增强组织信息的名称     Griffith University
	[ 4 ] 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:meouyang@scut.edu.cn; hshao@umac.mo

出版商

ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND

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