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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >An integrating photoanode consisting of BiVO4, rGO and LDH for photoelectrochemical water splitting
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An integrating photoanode consisting of BiVO4, rGO and LDH for photoelectrochemical water splitting

机译：一个集成的光电码，由Bivo4，Rgo和LDH组成，用于光电化学水分子

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摘要

The low carrier mobility of BiVO4 is a bottleneck that limits its charge transfer in bulk or on the surface. Herein, reduced graphene oxide (rGO) nanosheets as an effective electron mediator were successfully loaded on BiVO4 and NiFe-layered double hydroxides (NiFe-LDHs) were decorated on BiVO4/rGO heterojunctions by two facile electrodeposition methods to construct a triadic photoanode of BiVO4/rGO/NiFe-LDH for improvement of photoelectrochemical (PEC) water splitting efficiency of BiVO4. This photoanode significantly extends the absorption region of visible light, increases the photocurrent density, exhibits an onset potential with a significant cathodic shift, and enhances photon-to-electron conversion efficiency (IPCE) compared with the pristine BiVO4 photoanode. The enhancement of PEC properties benefits from the formation of p-n heterojunctions between rGO and BiVO4 and the use of NiFe-LDH as a cocatalyst for accelerating the kinetics of oxygen evolution from water.
机译：Bivo4的低载流动性是瓶颈，其限制其散装或表面上的电荷转移。 在此，在BIVO4和NiFe层双氢氧化物（NiFe-LDH）上成功地装于Bivo4 / Rgo杂氧化物（NiFe-LDH）上成功地装饰了两种容易电沉积方法，以构建Bivo4 / Bivo4的三合会光电码，成功地装饰为有效的电子介体作为有效的电子介质（NiFe-LDH）。 Rgo / NiFe-LDH改善Bivo4的光电化学（PEC）水分裂效率。 该光电极显着延伸了可见光的吸收区域，增加了光电流密度，与原始Bivo4光电码相比，具有显着的阴极移位的发作电位，并增强了光子 - 电子转换效率（IPCE）。 PEC性质的增强从RGO和Bivo4之间的P-N异质功能的形成以及使用NiFe-LDH作为一种助催化剂，用于加速水的氧换气动力学。

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    Sun Lixia; Sun Jianhua; Yang Xiaojun; Bai Shouli; Feng Yongjun; Luo Ruixian; Li Dianqing; Chen Aifan;

  • 作者单位

    Guangxi Univ Sch Chem &

    Chem Engn Guangxi Key Lab Petrochem Resource Proc &

    Proc In Nanning 530004 Peoples R China;

    Guangxi Univ Sch Chem &

    Chem Engn Guangxi Key Lab Petrochem Resource Proc &

    Proc In Nanning 530004 Peoples R China;

    Beijing Univ Chem Technol Beijing Key Lab Environm Harmful Chem Anal State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol Beijing Key Lab Environm Harmful Chem Anal State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol Beijing Key Lab Environm Harmful Chem Anal State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol Beijing Key Lab Environm Harmful Chem Anal State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol Beijing Key Lab Environm Harmful Chem Anal State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol Beijing Key Lab Environm Harmful Chem Anal State Key Lab Chem Resource Engn Beijing 100029 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;无机化学;
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