Design of high efficiency electrolysis cell for liquid ammonia utilization as hydrogen storage carrier

液氨储氢载体高效电解槽设计

• 批准号: 24760726
• 负责人: HANADA Nobuko
• 金额: $ 2.83万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24760726/
• 关键词: 水素貯蔵媒体; 液体アンモニア; 水素生成; 電気分解; 過電圧低減; 電気めっき

The overvoltage reduction effects of electrode morphology and materials on liquid ammonia electrolysis were investigated to design high efficiency electrolysis cell for generating hydrogen from liquid ammonia. For Pt-black electrodes prepared by electrodeposition, it is clarified that the overvoltage reduction does not relate to the electrode surface area, but relates to both of Pt deposition amount and size of deposited Pt particles. For the electrolysis by using Pt plate electrode, anode overvoltage is five times as large as cathode one. Ammonia electrolysis with the emission of hydrogen gas was performed at 0.1 V around theoretical electrolysis voltage by adapting Pt-Ru electrode which can reduce the anode overvoltage.

为了设计高效的液氨制氢电解槽，研究了电极形态和材料对液氨电解过电压降低的影响。对于电沉积法制备的Pt-black电极，明确了过电压的降低与电极表面积无关，而与Pt沉积量和沉积Pt颗粒的大小有关。使用Pt板电极电解时，阳极过电压是阴极过电压的5倍。采用可降低阳极过电压的Pt-Ru电极，在理论电解电压附近0.1 V的电压下进行氨电解，并发射氢气。

项目成果

液体アンモニア電気分解の遷移金属電極における電気化学特性

液氨电解过渡金属电极的电化学性能

• 作者: 花田信子;段磊;北川卓;石田政義;市川貴之;小島由継
• 通讯作者: 小島由継

Hydrogen generation by electrolysis of liquid ammonia.

• DOI: 10.1039/c0cc01982h
• 发表时间: 2010-10
• 期刊: Chemical communications
• 影响因子: 4.9
• 作者: Nobuko Hanada;S. Hino;T. Ichikawa;H. Suzuki;K. Takai;Y. Kojima

液体アンモニア電気分解へのRu電極触媒適用による過電圧低減

Ru电催化剂应用于液氨电解降低过电压

• 发表时间: 2014
• 作者: 北川卓;花田信子;石田政義
• 通讯作者: 石田政義

液体アンモニア電気分解におけるアノード及びカソード反応での過電圧特性評価

液氨电解阳极和阴极反应过电压特性评价

• 发表时间: 2013
• 作者: 段磊;花田信子;石田政義
• 通讯作者: 石田政義

Reduction of electrolysis voltage of liquid ammonia for hydrogen generation

降低液氨电解电压制氢

• 发表时间: 2013
• 作者: Nobuko Hanada;Rai Dan;Suguru Kitagawa;Masayoshi Ishida;Takayuki Ichikawa and Yoshitsugu Kojima
• 通讯作者: Takayuki Ichikawa and Yoshitsugu Kojima