午夜亚洲成av毛片_精品熟女少妇a∨免费久久i_午夜福利在线观看6080_99久高清在线播放

Ru Modulation Effects in the Synthesis of Unique Rod-like Ni@Ni2P-Ru Heterostructures and Their Remarkable Electrocatalytic Hydrogen Evolution Performance

Liu, Y (Liu, Ying)[ 1 ] ; Liu, SL (Liu, Suli)[ 1,3 ] ; Wang, Y (Wang, Yu)[ 1 ] ; Zhang, QH (Zhang, Qinghua)[ 2 ] ; Gu, L (Gu, Lin)[ 2 ] ; Zhao, SC (Zhao, Shuchen)[ 1 ] ; Xu, DD (Xu, Dongdong)[ 1 ] ; Li, YF (Li, Yafei)[ 1 ]*（李亞飛）; Bao, JC (Bao, Jianchun)[ 1 ]*（包建春）; Dai, ZH (Dai, Zhihui)[ 1 ]*（戴志暉）

[ 1 ] Nanjing Normal Univ, Sch Chem & Mat Sci, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Nanjing 210023, Jiangsu, Peoples R China

[ 2 ] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[ 3 ] Nanjing Xiaozhuang Coll, Dept Chem, Nanjing 211171, Jiangsu, Peoples R China

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,201802,140(8), 2731-2734

The construction of highly efficient and stable Pt-free catalysts for electrochemical hydrogen generation is highly desirable. Herein, we demonstrate the first metal-phosphides-metal system consisting of Ru, Ni2P, and Ni, which forms unique multiheterogeneous Ni@Ni2P-Ru nanorods. Interestingly, a Ru modulation effects that promotes the desorption of H-2 to achieve a moderate hydrogen adsorption energy (Delta G(H)), and enables the formation of Ni@Ni2P nanorods via Ru-Ni coordination to enhance the conductivity was discovered. Due to its optimal Delta G(H), improved conductivity and rodlike morphology, this catalyst shows superior electrocatalytic HER performances in both acidic and alkaline conditions, which are superior to those of some recently reported phosphides and close to that of commercial 20% Pt/C. Such a design strategy is not limited to Ni2P and Ru but also may be extended to other similar phosphides and noble metals, providing a new promising approach and an alternative to Pt catalysts for electrocatalytic applications.

文章鏈接：

https://pubs.acs.org/doi/10.1021/jacs.7b12615