我组杨天禹在Small上发表论文

题目：

Immobilization of Oxyanions on the Reconstructed Heterostructure Evolved from a Bimetallic Oxysulfde for the Promotion of Oxygen Evolution Reaction

作者：

Tianyu Yang,[a]Ziliang Chen,[a]*Yingming Wang,[a]Hui Huang,[a]Kui Yin,[a]*Fan Liao,[a] Yang Liu,[a]*Zhenhui Kang,[a]

单位：

[a] Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, People’s Republic of China.

摘要：

N-doped carbon (NC)-encapsulated transition metal (TM) nanocompositesare considered as alternatives to Pt-based hydrogen evolution reaction (HER) electrocatalysts; however, their poor electron transfer and mass diffusioncapability at high current densities hinder their practical application. Herein,an oriented coupling strategy for the in situ grafting of ultrafine Conanoparticle-embedded hollow porous C polyhedra onto Si nanowires(Co/NC-HP@Si-NWs) is proposed to address this concern. Experimental investigations reveal that the intimate coupling between the Si-NW andCo/NC nanocage forms a multithreaded conductive network, lowering theenergy barrier for internal electron transfer. When functionalized as an HERelectrocatalyst in 0.5 M H₂SO₄, Co/NC-HP@Si-NWs deliver overpotentials aslow as 57 and 440 mV at 10 and 500 mA cm⁻², respectively, which are muchbetter than those of the pristine Co/NC-HP. Moreover, Co/NC-HP@Si-NWsshow an outstanding cycle durability of 24 h at 10 and 500 mA cm⁻². Thefindings of this study are expected to inspire revolutionary work on thedevelopment of Si-mediated TM-based electrocatalysts for the HER.

影响因子：

13.3

分区情况：

1区

链接：

https://onlinelibrary.wiley.com/doi/full/10.1002/smll.202305873