题目：

Liquid Metal Alloys Enable Efficient Formate Electrosynthesis

作者：

Haoling Huang^1,2#, Xue Ding^1,2#, Xinnan Mao^1,2, Yuchen Yan^1,2, Fang Lv^1,2, Binbin Pan^1,2, Wei Huang^1,2, Lu Wang^1,2*, Na Han^1,2*, and Yanguang Li^1,2,3*

单位：

¹Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China.

²Jiangsu Key Laboratory for Advanced Negative Carbon Technologies, Soochow University, Suzhou 215123, China.

³Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa, Macau SAR 999078, China.

摘要：

Liquid metals are an interesting class of materials with the unique combination of metallic nature and liquid fluidity, and have recently been explored in many emerging fields. Their potential applications in catalysis, unfortunately, remain largely untapped. Herein, Ga-mediated liquid metal alloying as an effective strategy is demonstrated to prepare functional alloys for catalysis. The alloying is carried out by dissolving indium or tin pellets in liquid gallium at room temperature or assisted by gentle heating, giving rise to binary Ga_1−xIn_xand Ga_1−xSn_xliquid metal alloys with tunable chemical compositions. When further subjected to ultrasonication in water, they are ruptured into nanosized particles with liquid metal cores and thin surface oxide shells. Electrochemical measurements reveal that the liquid metal alloying significantly promotes electrocatalytic CO₂reduction to formate. Taking Ga_0.75In_0.25as an example, its formate Faradaic efficiency is enhanced by 10%–20% compared to those of Ga and In, and its formate partial current density is 4–6 times larger than those of Ga and In. This enhancement is rationalized via computational simulations showing that the surrounding of In active sites with Ga atoms deactivates the undesirable reaction pathways to CO or H₂, and facilitates selective formate electrosynthesis.

影响因子：

18.5

分区情况：

一区

链接：

https://doi.org/10.1002/adfm.202408966

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