Bioinspired synthesis of CVD graphene flakes and graphene-supported molybdenum sulfide catalysts for hydrogen evolution reaction

作     者：Ke Chen Cong Li Zhaolong Chen Liurong Shi Sathish Reddy Huan Meng Qingqing Ji Yanfeng Zhang Zhongfan Liu 

作者机构：Center for Nanochemistry (CNC) Beijing Science and Engineering Center for Low Dimensional Carbon Materials Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University Beijing 100871 China Key Laboratory for Special Functional Materials of Ministry of Education Henan University Kaifeng 475004 China Department of Materials Science and Engineering College of Engineering Peking University Beijing 100871 China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2016年第9卷第1期

页      面：249-259页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：This work was financially supported by the National Basic Research Program of China (Nos. 2013CB932603  2012CB933404  2012CB921404  and 2013CB934600)  the National Natural Science Foundation of China (Nos. 51432002  51121091  51520105003  51290272  and 51222201)  the Ministry of Education of China (No. 20120001130010)  and the Beijing Municipal Science and Technology Planning Project (No. Z151100003315013) 

主　　题：graphene bioinspired synthesis chemical vapor deposition three-dimensional hydrogen evolutionreaction 

摘      要：Chemical vapor deposition has been the most-promising approach for growing large-area high-quality graphene films on planar substrates. Beyond the lateral growth, the synthesis of three-dimensional （3D） graphene has also been demon- strated recently on metal foams and insulating nanoparticles for exploring their applications in electrochemical electrodes. However, the existing approaches need either to prefabricate abundant starting substrates, or to construct porous frameworks for graphene growth. Herein, we report a straightforward, bioinspired strategy for growing large-quantity graphene flakes on cuttlebone substrates using the chemical vapor deposition （CVD） method. The separated graphene flakes from growth substrates are highly crystalline and layer-thickness controllable, outperforming the traditional chemically exfoliated graphene with few surface groups. Due to their inheriting the biomineral-derived morphology, the 3D graphene microstructures show a highly exposed and curved surface, which can load more MoSx（x ≥ 2） catalysts than other planar supports for highly efficient hydrogen generation. Briefly, the bioinspired approach is expected to achieve a reasonable balance between quality and quantity for graphene production, thus propelling its wide applications in energy storage and conversion devices.