One-Step Fabrication of Bio-Compatible Coordination Complex Film on Diverse Substrates for Ternary Flexible Memory
Wu-Ji Sun, Yong-Yan Zhao, Jin Zhou, Xue-Feng Cheng, Jing-Hui He*（贺竞辉）, and Jian-Mei Lu*（路建美）
College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou 215123 (P. R. China)
Chem. Eur. J.2019, 25, 4808 --4813
The design and development of non‐noble metal alternatives with superior performance and promising long‐term stability that is comparable or even better than those of noble metal‐based catalysts is a significant challenge. Here, we report the thermal induced phase engineering of non‐noble metal‐based nanowires with superior electrochemical activity and stability for methanol electrooxidations (MOR) in alkaline conditions. The optimized Cu‐Ni nanowires deliver an unprecedented mass activity of 425 mA mg‐1, which is 4.3 times higher than the untreated one. Detailed catalytic investigations show that the enhanced performance is due to the large active area, the increased number of active site (NiOOH) and fast methanol electrooxidation kinetics. In addition, the generated hollow feature in the nanowires provides a unique void space to release the volume expansion, where the activity can be maintained for 5 h without distinct activity decay. The present work emphasizes the importance of precisely phase modulating of nanomaterials for the design of non‐noble metal electrocatalysts towards MOR, which opens up a new pathway for the design of cost‐effective electrocatalysts with promising activity and long‐term stability.
链接：https://onlinelibrary.wiley.com/doi/abs/10.1002/chem.201901064