可視光応答人工光合成システムの構築

可见光响应人工光合作用系统的构建

• 批准号: 16J08808
• 负责人: 殷 鴿
• 金额: $ 0.83万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2016
• 资助国家: 日本
• 起止时间: 2016-04-22 至 2018-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16J08808/
• 关键词: carbon dioxide reduction; 人工光合成; Cu-Zn alloy; CaFe2O4; WO3; photocatalyst; photoelectrochemical; intermentallic

We aimed to achieve visible light sensitive CO2 photoreduction based on the combination of a Z-Scheme light harvester system and highly selective co-catalys.As light harvesters, CaFe2O4(CFO) photocathode and WO3 nanotrees photoanode were prepared. The film thickness and annealing temperature of the CFO photocathode were further modified to achieve high photocurrent density.As co-catalyst, after composition modification and electrochemical screening, Cu5Zn8 nanoparticles were developed and proved to be active for selective HCOOH generation. By using an ink methode, these NPs can be generally decorated on various light harvesters under moderate conditions.At last, HCOOH was selectively generated by the combined system under 0.5V over-potential and visible light irradaition.

为了实现可见光敏感的CO2光还原反应，我们将Z-Scheme光收集系统与高选择性共催化剂相结合，制备了CaFe 2 O 4（CFO）光电阴极和WO 3纳米树光电阳极作为光收集器。进一步调整CFO光电阴极的膜厚和退火温度以获得高的光电流密度;作为助催化剂，经过成分修饰和电化学筛选，制备了Cu 5 Zn 8纳米颗粒，并证明其对选择性生成HCOOH具有活性。最后，在0.5V的过电位和可见光照射下，利用该复合体系选择性地生成了HCOOH。

项目成果

Cu-Zn Intermetallic Nanoparticles Utilized in Catalytic CO2 Reduction

铜锌金属间纳米粒子用于催化二氧化碳还原

• 发表时间: 2016
• 作者: Ge Yin;Hideki Abe;Gubbala V. Ramesh;Akira Yamaguchi; Masahiro Miyauchi.
• 通讯作者: Masahiro Miyauchi.

Selective CO2 Photoreduction into HCOOH under Visible Light Irradiation Using Water as Electron Donor Based on Cu-Zn CaFe2O4/WO3 system

基于Cu-Zn CaFe2O4/WO3体系在可见光照射下以水为电子供体选择性CO2光还原生成HCOOH

• 发表时间: 2017
• 作者: 殷 鴿，佐古 弘志，山口 晃;阿部 英樹;宮内 雅浩
• 通讯作者: 宮内 雅浩

Photocatalytic reduction of CO2 by CuxO nanocluster loaded SrTiO3 thin film

CuxO 纳米团簇负载 SrTiO3 薄膜光催化还原 CO2

• 发表时间: 2016
• 期刊: Chem. Phys. Lett.
• 作者: S. Shoji;G. Yin;M. Nishikawa;D. Atarashi;E. Sakai;M. Miyauchi
• 通讯作者: M. Miyauchi

Selected HCOOH generation by CO2 photoreduction under visible light irradiation.

在可见光照射下通过CO2光还原选择性生成HCOOH。

• 发表时间: 2017
• 作者: G. Yin;H. Sako;A. Yamaguchi;H. Abe;M. Miyauchi
• 通讯作者: M. Miyauchi

A Cu-Zn Intermetallic Catalyst Utilized for Electrochemical, Photoelectrochemical and Photocatalytic CO2 Reduction

用于电化学、光电化学和光催化 CO2 还原的 Cu-Zn 金属间催化剂

• 发表时间: 2016
• 作者: Ge Yin;Hideki Abe;Etsuo Sakai;Masahiro Miyauchi
• 通讯作者: Masahiro Miyauchi