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Femtosecond laser micro-nano processing for boosting bubble releasing of gas evolution reactions

查看全文 作　　者：Shuai [1]Zhang;Lishuang [1]Xu;Jie [1]Wu;Ying [1]Yang;Chengxin [1]Zhang;Haiyan [2]Tao;Jingquan [3]Lin;Licheng [1]Huang;Wencheng [1]Fang;Keying [4]Shi;Xiangting [1]Dong 高影响力作者 机构地区：[1]Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province,Changchun University of Science and Technology,Changchun 130022,China;[2]School of Science,Changchun University of Science and Technology,Changchun 130022,China;[3]International Research Centre for Nano Handling and Manufacturing of China,Changchun University of Science and Technology,Changchun 130022,China;[4]Key Laboratory of Functional Inorganic Material Chemistry,Ministry of Education,School of Chemistry and Material Science,Heilongjiang University,Harbin 150080,China高影响力机构 出　　处：《Nano Research》索引2022年第15卷第2期,共8页高影响力期刊 基　　金：the National Natural Science Foundation of China(Nos.21601018,51976015,51902029,61605017,and 51573023);the Science and Technology Development Planning Project of Jilin Province(Nos.20200201534JC,20200201250JC,20190103035JH,and 20200201234JC);Jilin Association for Science and Technology(No.QT202003);the Science and Technology Research Planning Project of the Education Department of Jilin Province(Nos.JJKH20210801KJ and JJKH20200745KJ);Project of Education Department in Jilin Province(Nos.20190586KJ and 20190552KJ). 摘　　要：Coupling effect of chemical composition and physical structure is a key factor to construct superaerophobic electrodes.Almost all reports about superaerophobic electrodes were aimed at precisely controlling morphology of loaded materials(constructing specific structure)and ignored the due role of substrate.Nevertheless,in this work,by using high precision and controllable femtosecond laser,hierarchical micro-nano structures with superaerophobic properties were constructed on the surface of silicon substrate(fs-Si),and such special super-wettability could be successfully inherited to subsequent self-supporting electrodes through chemical synthesis.Femtosecond laser processing endowed electrodes with high electrochemical surface area,strong physical structure,and remarkable superaerophobic efficacy.As an unconventional processing method,the reconstructed morphology of substrate surface bears the responsibility of superaerophobicity,thus liberating the structural constraints on loaded materials.Since this key of coupling effect is transferred from the loaded materials to substrate,we provided a new general scheme for synthesizing superaerophobic electrodes.The successful introduction of femtosecond laser will open a new idea to synthesize self-supporting electrodes for gas-involving reactions. 关 键 词：femtosecond laser gas evolution reactions hydrogen evolution reaction superaerophobic electrodes bubbles releasing
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