二機能性電極の相乗効果による電気化学的バイオマス再生と水素製造

通过双功能电极的协同作用电化学生物质再生和制氢

• 批准号: 22KF0204
• 负责人: 北川 宏
• 金额: $ 1.47万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2023
• 资助国家: 日本
• 起止时间: 2023-03-08 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KF0204/
• 关键词: nanoparticle; high-entropy alloy; electrochemistry

High-entropy alloy nanoparticles consisting of Pd, Ru, Ni, Co and Cu have been prepared by hot injection of metal precursors into oleylamine at 320 degrees C. The XRD pattern shows FCC phase while the STEM images show the heterogenous distribution of PdCu and RuNiCo in one single nanoparticle. This might be due to the different reduction speeds of metal precursors.High-entropy selenide of platinum-group metals has been prepared by hot injection of metal precursors into trimethylene glycol at 230 degrees C with polyvinylpyrrolidone as the surfactant. The XRD pattern shows that the selenide prepared exhibits an amorphous structure and the STEM confirms the absence of ordered crystal lattices. The elemental mapping shows the homogeneous distribution of Ru, Rh, Pd, Ir, Pt and Se in the nanoparticles.

在320℃下将金属前驱体注入到油胺中，制备了由Pd、Ru、Ni、Co和Cu组成的高熵合金纳米粒子。X射线衍射图显示为面心立方相，而STEM图像显示PdCu和RuNiCo在单个纳米粒子中分布不均匀。这可能是由于金属前驱体的还原速度不同所致。以聚乙烯吡咯烷酮为表面活性剂，在230℃下将金属前驱体热注入到三甘醇中，制备了高熵的铂族金属硒化物。X射线衍射图表明所制备的硒化合物为非晶态结构，扫描电子显微镜证实了有序晶格的缺失。元素图谱表明，Ru、Rh、Pd、Ir、Pt和Se在纳米颗粒中分布均匀。