CuO纳米阵列结构光阴极的制备及其光电化学分解水的性能  

Controlled Synthesis of CuO Nanoarrays as Efficient Photocathodes for Photoelectrochemical(PEC) for Water Splitting

作　　者：孟祥东 甄超[1] 刘岗[1,3] 成会明[1,2,4] MENG Xiangdong;ZHEN Chao;LIU Gang;CHENG Huiming(Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;School of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,China;School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China;Shenzhen Geim Graphene Center,Tsinghua-Berkeley Shenzhen Institute,Tsinghua University,Shenzhen 518055,China)

机构地区：[1]中国科学院金属研究所沈阳材料国家研究中心,沈阳100162 [2]上海科技大学物质科学与技术学院,上海201210 [3]中国科学技术大学材料科学与工程学院,沈阳100164 [4]清华-伯克利深圳学院深圳盖姆石墨烯研究中心,深圳518055

出　　处：《材料研究学报》2022年第4期241-249,共9页Chinese Journal of Materials Research

基　　金：国家自然科学基金(51825204)和(52072377);中国科学院前沿科学研究重点计划项目(拔尖青年科学家类别)(QYZDBSSW-JSC039)和中国科学院青年创新促进会(2020192)

摘　　要：用原位基体加热反应磁控溅射方法制备具有强捕光和电荷分离能力的CuO纳米阵列(CuO NAs)光阴极,并改变氧分压、基底温度、腔体压力以及溅射时间等参数调控其相组成、晶体形貌、晶体生长取向、晶面暴露、厚度以及电子结构。结果表明,结构优化的CuO NAs光阴极,其光电流密度可达2.4 mA·cm^(-2)。Photocathode of CuO nanoarray(CuO NAS)with strong ability of light capture and charge separation capacity was fabricated by reactive magnetron sputtering with in-situ heating the substrate,while the phase composition,crystal morphology,crystal growth orientation,crystal face exposure,thickness and electronic structure of the films were controlled by changing oxygen partial pressure,substrate temperature,cavity pressure and sputtering time.The photocurrent density of the optimized CuO NAS photocathode is up to 2.4 mA·cm^(-2).

关 键 词：无机非金属材料 光电化学分解水 磁控溅射 氧化铜 

分 类 号：TQ116.2[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]