文献类型：期刊文献

英文题名：Solid-liquid-gas reaction accelerated by gas molecule tunnelling-like effect

作者：Wang, Wen[1,2,11];Xu, Tao[1];Chen, Jige[3,4];Shangguan, Junyi[2,5];Dong, Hui[6];Ma, Huishu[4];Zhang, Qiubo[2];Yang, Junwei[7];Bai, Tingting[8];Guo, Zhirui[8];Fang, Haiping[9,10];Zheng, Haimei[2,5];Sun, Litao[1]

机构：[1]Southeast Univ, Collaborat Innovat Ctr Micro Nano Fabricat Device, Minist Educ, SEU FEI Nanopico Ctr,Key Lab MEMS, Nanjing, Peoples R China;[2]Lawrence Berkeley Natl Lab, Mat Sci Div, Berkeley, CA 94720 USA;[3]Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Lab, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China;[4]Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai, Peoples R China;[5]Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA;[6]Xiangtan Univ, Minist Educ, Engn Res Ctr Complex Tracks Proc Technol & Equipm, Key Lab Welding Robot & Applicat Technol Hunan Pr, Xiangtan, Peoples R China;[7]Shanghai Dianji Univ, Sch Arts & Sci, Shanghai, Peoples R China;[8]Nanjing Med Univ, Affiliated Hosp 2, Key Lab Aging & Dis, Nanjing, Peoples R China;[9]East China Univ Sci & Technol, Sch Phys, Shanghai, Peoples R China;[10]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Reso, Shanghai, Peoples R China;[11]Zhengzhou Univ, Sch Mech & Safety Engn, Zhengzhou, Peoples R China

年份：2022

卷号：21

期号：8

起止页码：859

外文期刊名：NATURE MATERIALS

收录：;EI(收录号：20222212170596);WOS:【SCI-EXPANDED(收录号:WOS:000805540400004)】；

基金：This work is especially for the 120th anniversary of Southeast University. We thank H. Zhang and H.-T. Zhang (SEU-FEI Nano-Pico Center, Southeast University) for support and useful discussions. The work at Lawrence Berkeley National Laboratory was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division under contract no. DE-AC02-05-CH11231 within the in situ TEM programme (no. KC22ZH). The work at Southeast University was supported by the National Natural Science Foundation of China (grant nos. 51420105003, 11327901, 61601116 and 61974021) and the National Science Fund for Distinguished Young Scholars (grant no. 11525415). J.C. thanks the Natural Science Foundation of Shanghai (grant no. 14ZR1448100, 19ZR1463200), and the Shanghai Supercomputer Center of China and Big Data Science Center of Shanghai Synchrotron Radiation Facility. W.W. thanks the China Scholarship Council (no. 201806090114) for financial support.

语种：英文

外文关键词：Gold - Phase interfaces - Molecular dynamics - Gases - Molecules - High resolution transmission electron microscopy - Etching - Liquids - Molecular oxygen - Reaction kinetics - Van der Waals forces

摘要：Solid-liquid-gas reactions are ubiquitous and are encountered in both nature and industrial processes(1-4). A comprehensive description of gas transport in liquid and following reactions at the solid-liquid-gas interface, which is substantial in regard to achieving enhanced triple-phase reactions, remains unavailable. Here, we report a real-time observation of the accelerated etching of gold nanorods with oxygen nanobubbles in aqueous hydrobromic acid using liquid-cell transmission electron microscopy. Our observations reveal that when an oxygen nanobubble is close to a nanorod below the critical distance (similar to 1nm), the local etching rate is significantly enhanced by over one order of magnitude. Molecular dynamics simulation results show that the strong attractive van der Waals interaction between the gold nanorod and oxygen molecules facilitates the transport of oxygen through the thin liquid layer to the gold surface and thus plays a crucial role in increasing the etching rate. This result sheds light on the rational design of solid-liquid-gas reactions for enhanced activities.