Materials Design of Polymer Electrolyte Fuel Cell Nano-network Electrocatalysts

聚合物电解质燃料电池纳米网络电催化剂的材料设计

• 批准号: 20246104
• 负责人: SASAKI Kazunari
• 金额: $ 30.62万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20246104/
• 关键词: 燃料電池; 水素; 触媒・化学プロセス; セラミックス; 無機工業化学; 酸化スズ; 電極触媒.; 電極触媒

In order to establish materials design principles for highly-durable electrocatalysts for polymer electrolyte fuel cells(PEFC), we focus on SnO2 as a model material. The use of SnO2 as an alternative electrocatalyst support improves durability against voltage cycling up to a high potential, corresponding to the start-up and shut-down situation of polymer electrolyte fuel cell(PEFC) systems. Electrochemical surface area(ECSA) and oxygen reduction reaction(ORR) activity of Pt electrocatalysts as well as electrical conductivity of the electrocatalyst layers increase by doping of SnO2 with Nb or Sb. The durability tests with voltage cycles between 0. 9and1. 3V versus reversible hydrogen electrode(RHE) have revealed that the Pt electrocatalyst supported on SnO2(Pt/SnO2) withstands 60, 000 voltage cycles while maintaining its ECSA, which corresponds to the life time of more than 20 years with respect to the durability against voltage cycling. These results indicate that SnO2-supported carbon-free electrocatalysts can be alternatives to the conventional Pt/C electrocatalyst, as a fundamental solution against carbon support corrosion to improve PEFC durability.

为了建立用于聚合物电解质燃料电池（PEFC）高度可耐用电催化剂的材料设计原理，我们将重点放在SNO2作为模型材料上。使用SNO2作为替代电催化剂支持，可以提高电压循环的耐用性，最高电位，对应于聚合物电解质燃料电池（PEFC）系统的启动和关闭情况。 PT电催化剂的电化学表面积（ECSA）和氧还原反应（ORR）活性以及电催化剂层的电导率通​​过用NB或SB掺杂SNO2来增加。耐用性测试，电压循环在0。9和1之间。 3V与可逆的氢电极（RHE）表明，在维持其ECSA的同时，SNO2（PT/SNO2）在SNO2（PT/SNO2）上支撑的PT电催化剂可承受60，000电压循环，这对应于与电压循环的耐用性相对于20年以上的寿命。这些结果表明，SNO2支持的无碳电催化剂可以是常规PT/C电催化剂的替代方法，是针对碳支持腐蚀以提高PEFC耐用性的基本解决方案。

项目成果

Durability and Electrochemical Properties of Carbon-free Pt Electrocatalysts Supported on Doped SnO_2 for Polymer Electrolyte Fuel Cells.

用于聚合物电解质燃料电池的掺杂 SnO_2 负载的无碳 Pt 电催化剂的耐久性和电化学性能。

• 发表时间: 2011
• 作者: Fumiaki TAKASAKI;Satoshi MATSUIE;Akihiro MASAO;Zhiyun NODA;Yusuke SHIRATORI;Kohei ITO;Kazunari SASAKI
• 通讯作者: Kazunari SASAKI

SnO_2を担体に用いたPEFCカーボンフリー電極触媒の開発

以SnO_2为载体的PEFC无碳电极催化剂的研制

• 发表时间: 2009
• 作者: 高崎文彰;野田志雲;白鳥祐介;伊藤衡平;佐々木一成
• 通讯作者: 佐々木一成

Electrochemical and Electrical Properties of Carbon-free Pt Electrocatalysts Supported on Doped SnO_2 for Polymer Electrolyte Fuel Cells.

用于聚合物电解质燃料电池的掺杂 SnO_2 负载的无碳 Pt 电催化剂的电化学和电学性能。

• 发表时间: 2010
• 作者: Fumiaki TAKASAKI;Zhiyun NODA;Yusuke SHIRATORI;Kohei ITO;Kazunari SASAKI
• 通讯作者: Kazunari SASAKI

SnO_2担体を用いたPEFC電極触媒の研究

SnO_2载体PEFC电催化剂的研究

• 发表时间: 2008
• 作者: 正生明宏;野田志雲;白鳥祐介,伊藤衡平;佐々木一成
• 通讯作者: 佐々木一成

Alternative Electrocatalyst Support Materials for Polymer Electrolyte Fuel Cells

• DOI: 10.1149/1.3484545
• 发表时间: 2010-10
• 作者: K. Sasaki;F. Takasaki;Z. Noda;S. Hayashi;Y. Shiratori;Kohei Ito