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Hydrogen generation via hydrolysis of magnesium with seawater using Mo, MoO2, MoO3 and MoS2 as catalysts
Huang, Minghong1; Ouyang, Liuzhang1; Ye, Jianshan1; Liu, Jiangwen1; Yao, Xiangdong2; Wang, Hui1; Shao, Huaiyu3; Zhu, Min1
2017-05
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume5Issue:18Pages:8566-8575
Abstract

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.

DOI10.1039/c7ta02457f
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000400983400043
PublisherROYAL SOC CHEMISTRY
The Source to ArticleWOS
Fulltext Access
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Cited Times [WOS]:69   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorOuyang, Liuzhang; Shao, Huaiyu
Affiliation1.South China University of Technology
2.Griffith University
3.University of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Huang, Minghong,Ouyang, Liuzhang,Ye, Jianshan,et al. Hydrogen generation via hydrolysis of magnesium with seawater using Mo, MoO2, MoO3 and MoS2 as catalysts[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(18):8566-8575.
APA Huang, Minghong,Ouyang, Liuzhang,Ye, Jianshan,Liu, Jiangwen,Yao, Xiangdong,Wang, Hui,Shao, Huaiyu,&Zhu, Min.(2017).Hydrogen generation via hydrolysis of magnesium with seawater using Mo, MoO2, MoO3 and MoS2 as catalysts.JOURNAL OF MATERIALS CHEMISTRY A,5(18),8566-8575.
MLA Huang, Minghong,et al."Hydrogen generation via hydrolysis of magnesium with seawater using Mo, MoO2, MoO3 and MoS2 as catalysts".JOURNAL OF MATERIALS CHEMISTRY A 5.18(2017):8566-8575.
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