文献类型：期刊文献

英文题名：Solidophobic Surface for Electrochemical Extraction of High-Valued Mg(OH)2 Coupled with H2 Production from Seawater

作者：Yi, Li[1,3];Chen, Xu[1];Wen, Yingjie[1];Chen, Haocheng[1,3];Zhang, Sixie[1,2];Yang, Hao[1,3];Li, Wenbo[4,5];Zhou, Lihui[4,5];Xu, Beibei[6];Xu, Wenwen[1];Guan, Wanbing[1,2];Dai, Sheng[4,5];Lu, Zhiyi[1,2]

机构：[1]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Adv Fuel Cells & Electrolyzers Te, Ningbo 315201, Zhejiang, Peoples R China;[2]Univ Chinese Acad Sci, Beijing 100049, Peoples R China;[3]Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310032, Peoples R China;[4]East China Univ Sci & Technol, Inst Fine Chem, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Feringa Nobel Prize Scientist, Shanghai 200237, Peoples R China;[5]East China Univ Sci & Technol, Inst Fine Chem, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Feringa Nobel Prize Scientist, Shanghai 200237, Peoples R China;[6]Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China

年份：2024

卷号：24

期号：19

起止页码：5920

外文期刊名：NANO LETTERS

收录：;EI(收录号：20242116112474);WOS:【SCI-EXPANDED(收录号:WOS:001225084800001)】；

基金：This work was supported by National Key Research and Development Project (2023YFB4005100). Additional support was provided by the Frontiers Science Center for Materiobiology and Dynamic Chemistry and the Feringa Nobel Prize Scientist Joint Research Center at East China University of Science and Technology.

语种：英文

外文关键词：natural seawater electrolysis; high disorder alloy; surface energy; solidophobic; double-product; high-purity Mg(OH)(2)

摘要：A significant challenge in direct seawater electrolysis is the rapid deactivation of the cathode due to the large scaling of Mg(OH)(2). Herein, we synthesized a Pt-coated highly disordered NiCu alloy (Pt-NiCu alloy) electrode with superior solidophobic behavior, enabling stable hydrogen generation (100 mA cm(-2), >1000 h durability) and simultaneous production of Mg(OH)(2) (>99.0% purity) in electrolyte enriched with Mg2+ and Ca2+. The unconventional solidophobic property primarily stems from the high surface energy of the NiCu alloy substrate, which facilitates the adsorption of surface water and thereby compels the bulk formation of Mg(OH)(2) via homogeneous nucleation. The discovery of this solidophobic electrode will revolutionarily simplify the existing techniques for seawater electrolysis and increase the economic viability for seawater electrolysis.