Pressure-induced bimetallic carbon nanotubes from metalorganic frameworks as optimized bifunctional electrocatalysts for water splitting  

作　　者：Hong-Xu Chen Hui Xu Zhi-Rong Song Yi Liu Hui Cui Jun-Kuo Gao 

机构地区：[1]Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province,Institute of Optoelectronic Materials and Devices,Collage of Optical and Electronic Technology,China Jiliang University,Hangzhou,310018,China [2]Institute of Functional Porous Materials,School of Materials Science and Engineering,Zhejiang Sci-Tech University,Hangzhou,310018,China [3]Institute for Composites Science Innovation,School of Materials Science and Engineering,Zhejiang University,Hangzhou,310027,China [4]Argonne National Laboratory,Physics Division,Lemont,IL,60439,USA [5]Department of Chemistry and International Institute for Nanotechnology(IIN),Northwestern University,Evanston,IL,60208,USA

出　　处：《Rare Metals》2023年第1期155-164,共10页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.52171277);Zhejiang Provincial Natural Science Foundation of China(No.LY20E020001)。

摘　　要：Carbon nanotubes(CNTs)have attracted great interest in numerous applications due to their excellent electronic and structural properties.However,harsh synthesis conditions and high energy consumption limit the further application of CNTs.Herein,we developed a facile and innovative strategy to generate CNTs by physically pressurizing metal-organic frameworks(MOFs)and then pyrolyzing.The synthesized bimetallic nitrogen/sulfur double-doped carbon nanotubes are denoted as Fe_(x)Co_(1-x)P(x=0.5,0.6,0.7,0.8,0.9).The introduction of pressure not only revolutionized the morphology of the electrocatalysts,but also enhanced the activity of oxygen evolution reaction(OER)and hydrogen evolution reaction(HER)in alkaline solution.Fe_(0.6)Co_(0.4)-P exhibits superior OER and HER performances in 1.0 mol·L^(-1)KOH solution with overpotentials of 364 and 346 mV at 10 mA·cm^(-2),which are 28 and 5 mV lower than unpressurized Fe0.6Co0.4.

关 键 词：Metal-organic frameworks(MOFs) Carbon nanotubes(CNTs) BIFUNCTIONAL Pressurizing Oxygen evolution reaction(OER) Hydrogen evolution reaction(HER) 

分 类 号：O643.36[理学—物理化学]