Abstract: The CoP/RGO composite materials were synthesized by in-situ reduction in the argon protection environment.The compositions,structures,and morphologies of the composites were characterized by Raman spectra.The hydrogen evolution reaction was tested by linear scanning in 0.5mol/L sulfuric acid solution.The results showed that the nano-sized particles of the CoP were relatively dispersed on the graphene,the lattice spacing of CoP was 0.24nm and the ratio of Co and P was approximately 1∶1.It was found that the CoP/RGO composite showed an enhanced catalytic activity with the over potential 116mV.The performance degradation rate was about 12%(from 116mV to 130mV) after 500 cycles.Compared with the single material,the composite had higher catalytic activity,which effectively increased the activity of electrocatalytic hydrogenation.
李俊莉, 杨玉琴, 皇甫鑫强, 陈选欣. CoP/RGO复合材料的制备及结构性能研究[J]. 化工新型材料, 2019, 47(11): 141-144.
Li Junli, Yang Yuqin, Huangfu, Xinqiang, Chen Xuanxin. Study on the preparation and structure property of CoP/RGO. New Chemical Materials, 2019, 47(11): 141-144.
[1] Lewis N S,Nocera D G.Powering the planet:chemical challenges in solar energy utilization[J].Proc Natl Acad Sci USA,2006,103(43):15729-15735. [2] Chen H M,Chen C K,Liu R S,et al.Nano-architecture and material designs for water splitting photoelectrodes[J].Chem Soc Rev,2012,41:5654-5671. [3] Li Y G,Wang H L,Xie L M,et al.MoS2 nanoparticles grown on graphene:an advanced catalyst for the hydrogen evolution reaction[J].J Am Chem Soc,2011,133(19):7296-7299. [4] Gray H B.Powering the planet with solar fuel[J].Nat Chem,2013,1(1):8-12. [5] Oyama S T,Gott T,Zhao H,et al.Transition metal phosphide hydroprocessing catalysts:a review[J].Catal Today,2009,143(1/2):94-107. [6] Popczun E J,McKone J R,Read C G,et al.Nanostructured nickel phosphide as an electrocatalyst for the hydrogen evolution reaction l[J].J Am Chem Soc,2013,135(25):9267-9270. [7] Xu Y,Wu R,Zhang J,et al.Anion-exchange synthesis of nanoporousFeP nanosheets as electrocatalysts for hydrogen evolution reaction[J].Chem Commun,2013,49(59):6656-6658. [8] Ma L B,Shen X P,Zhou H,et al.CoP nanoparticles deposited on reduced graphene oxide sheets as an active electrocatalyst for the hydrogen evolution reaction[J].J Mater Chem A,2015,3(10):5337-5343. [9] Tian J Q,Liu Q,Asiri A M,et al.Self-supported nanoporous cobalt phosphide nanowire arrays:an efficient 3D hydrogen-evolving cathode over the wide range of pH 0-14[J].J Am Chem Soc,2014,136(21):7587-7590. [10] Tian J Q,Liu Q,Cheng N Y,et al.Self-supported Cu3P nanowire arrays as an integrated high-performance three-dimensional cathode for generating hydrogen from water[J].Angew Chem Int Ed Engl,2014,53(36):9577-9581. [11] Callejas J F,Read C G,Popczun E J,et al.Nanostructured Co2P electrocatalyst for the hydrogen evolution reaction and direct comparison with morphologically equivalent CoP[J].2015,27(10):3769-3774. [12] Jaramillo T F,Jorgensen K P,Bonde J,et al.Identification of active edge sites for electrochemical H2 evolution from MoS2 nanocatalysts[J].Science,2007,317(5834):100-102. [13] Liang Y Y,Li Y G,Wang H L,et al.Strongly coupled inorganic/nanocarbon hybrid materials for advanced electrocatalysis[J].J Am Chem Soc,2013,135(6):2013-2036. [14] Guo L T,Cai Y Y,Ge J M,et al.Multifunctional Au-Co@CN nanocatalyst for highly efficient hydrolysis of ammonia borane[J].ACS Catal,2015,5(1):388-392. [15] 曹寅亮.高活性镍基析氢电极的制备及其在碱性条件下析氢行为研究[D].北京:北京化工大学,2013. [16] Xu C,Wang X,Zhu J W.Graphene-metal particle nanocomposites[J].J Phys Chem C,2008,112(50):19841-19845. [17] Stankovich S,Dikin D A,Piner R D,et al.Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide[J].Carbon,2007,45(7):1558-1565. [18] 彭海岳,马媛媛,刘嘉宁,等.CoP/Co2P/C纳米材料用于全pH值电催化析氢[J].分子科学学报,2017(6):455-459.