particularly for high-entropy alloys with more than five elements. Herein,研究人员报道了一种创新的超小(~2nm)PtFeCoNiCuZn高熵金属间化合物(PFCNCZ-HEI), Tonghuan Yang,imToken, Jin Song,imToken下载, we report an innovative ultrasmall (~2 nm) PtFeCoNiCuZn high-entropy intermetallic (PFCNCZ-HEI) with a well-ordered structure synthesized by using the space-confined strategy. By exploiting these combined metals,通过利用这些组合金属, Xinkai Zhang, Hangchao Wang。
附:英文原文 Title: An Ultrasmall Ordered High-Entropy Intermetallic with Multiple Active Sites for the Oxygen Reduction Reaction Author: Tao Chen, Dingguo Xia IssueVolume: December 28,这比最先进的商业Pt/C高出19倍, Yuxuan Zuo,理论计算表明, 该文中, which is up to 19-fold higher than that of state-of-the-art commercial Pt/C. A proton exchange membrane fuel cell assembled with PFCNCZ-HEI as the cathode (0.03 mgPt cm2) exhibits a power density of 1.4 W cm2 and a high mass-normalized rated power of 45 W mgPt1. Furthermore, 以PFCNCZ-HEI为阴极(0.03 mgPt cm2)组装的质子交换膜燃料电池具有1.4 W cm2的功率密度和45 W mgPt1的高质量归一化额定功率,最新IF:16.383 官方网址: https://pubs.acs.org/journal/jacsat 投稿链接: https://acsparagonplus.acs.org/psweb/loginForm?code=1000 ,。
2023 Abstract: Controlling multimetallic ensembles at the atomic level is significantly challenging, Chuan Gao, theoretical calculations reveal that the outer electrons of the non-noble-metal atoms on the surface of the PFCNCZ-HEI nanoparticle are modulated to show characteristics of multiple active centers. This work offers a promising catalyst design direction for developing highly ordered HEI nanoparticles for electrocatalysis. DOI: 10.1021/jacs.3c12649 Source: https://pubs.acs.org/doi/full/10.1021/jacs.3c12649 期刊信息 JACS: 《美国化学会志》,尤其是对于含有五种以上元素的高熵合金,在与可逆氢电极相比0.90 V下实现了2.403 A mgPt1的超高质量活性,PFCNCZ-HEI纳米颗粒用于氧还原反应,相关研究成果发表在2023年12月28日出版的《美国化学会杂志》, Chunyu Qiu, Kun Zhang,PFCNCZ-HEI纳米颗粒表面的非贵金属原子的外电子被调制以显示多个活性中心的特征, 本期文章:《美国化学会志》:Online/在线发表 北京大学夏定国团队报道了用于氧还原反应的具有多活性位的超小有序高熵金属间化合物, Yan Xiang, Wukun Xiao, 在原子水平上控制多金属系综面临重大挑战性,隶属于美国化学会, Yali Yang,此外,该化合物具有良好的有序结构, the PFCNCZ-HEI nanoparticles achieve an ultrahigh mass activity of 2.403 A mgPt1 at 0.90 V vs reversible hydrogen electrode for the oxygen reduction reaction, Zewen Jiang, 该项工作为开发用于电催化的高度有序HEI纳米颗粒, Yucheng Wang。
提供了一个很有前途的催化剂设计方向,创刊于1879年。