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114. Self-powered electrolysis systems for sustainable hydrogen generation from natural seawater via a Ni/V2O3 Schottky electrode, Chem Eng J, 2022, 450, 138079
2022-06-30 07:48  

Guangbo Liu a, Honghao Lv a, Qinghao Quan a, Xiaolei Li a, Huasen Lu a, Wenzhen Li b, Xuejing Cui a, and Luhua Jiang a, *

a Nanomaterial & Electrocatalysis Laboratory, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China

b Department of Chemical & Biological Engineering, Iowa State University, Ames, IA 50011-1098, Unites States.

* Email: luhuajiang@qust.edu.cn

Keywords: Self-powered electrolysis system; Mg/seawater battery; Ni/V2O3; Schottky electrode; hydrogen generation

Abstract: Developing novel and efficient techniques for extracting hydrogen from natural seawater sustainably via electrolysis is highly attractive, yet remains a great challenge. Herein, a self-powered electrolysis system (SPES) driven by Mg/seawater batteries (MSBs) with a Ni/V2O3 Schottky electrode is demonstrated for sustainable production of hydrogen from seawater. The Ni/V2O3 Schottky electrode is constructed to serve as the hydrogen evolution reaction (HER) cathode for both the MSBs and seawater electrolysis unit in the SPES, enabling facile seawater HER with 10 and 1000 mA cm-2 at low overpotential of 176 and 649 mV respectively. The MSB with the Ni/V2O3 Schottky cathode delivers a peak power density up to 17.81 mW cm-2. Importantly, the designed SPES achieves a high hydrogen production rate up to 12.42 mL cm-2 h-1 from natural seawater with a high energy conversion efficiency of 80.87%. This work offers an intriguing technique for in-situ sustainable acquisition of hydrogen from natural seawater.

https://doi.org/10.1016/j.cej.2022.138079


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姜鲁华 教授
中科院百人

泰山学者特聘教授

德国洪堡学者

     能源短缺和环境污染是当今世界面临的两大难题,研究团队围绕洁净高效新型电能源技术,聚焦电能源相关的纳米材料和电催化应用基础研究。团队已发表SCI收录论文近200篇,申请发明专利80余件。纳米材料与电催化团队负责人姜鲁华教授连续多年入选Elsevier 能源领域/材料领域“中国高被引学者”和“全球前2%顶尖科学家”榜单。主持科技部、国家基金委、山东省科技厅等省部级以上项目20余项。研究成果曾获国家自然科学二等奖、辽宁省自然科学一等奖、国防技术发明二等奖、大连市技术发明一等奖、山东省自然科学学术创新奖等多个奖项。团队教师兼任 Chemical Engineering JournalNano Materials ScineceJournal of Electrochemistry 等多个期刊的编委/编辑。团队多名研究生获得国家奖学金和各类奖助学金以及研究生创新研究计划支持,培养的本科生多人获得大学生创新研究计划支持。

    欢迎有志于新能源和环境纳米电催化研究的青年人才和优秀学子加入团队!


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