A functional hydrogenase mimic that catalyzes robust H_(2) evolution spontaneously in aqueous environment  

作　　者：Ningning Song Zhanjun Guo Shuo Wang Yongli Li Yunpeng Liu Meishuai Zou Minmin Liang 

机构地区：[1]Experimental Center of Advanced Materials,School of Materials Science&Engineering,Beijing Institute of Technology,Beijing 100081,China [2]School of Materials Science&Engineering,Beijing Institute of Technology,Beijing 100081,China [3]Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Nano Research》2024年第5期3942-3949,共8页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.T2225026,82172087,22025604,82071308,52202344);the National Key R&D Program of China(No.2022YFA120012501);Beijing Institute of Technology Research Fund Program for Young Scholars.

摘　　要：Although great progress has been made in improving hydrogen production,highly efficient catalysts,which are able to produce hydrogen in a fast and steady way at ambient temperature and pressure,are still in large demand.Here,we report a[NiCo]-based hydrogenase mimic,NiCo_(2)O_(4) nanozyme,that can catalyze robust hydrogen evolution spontaneously in water without external energy input at room temperature.This hydrogenase nanozyme facilitates water splitting reaction by forming a three-center Ni-OH-Co bond analogous to the[NiFe]-hydrogenase reaction by using aluminum as electron donor,and realizes hydrogen evolution with a high production rate of 915 L·h^(-1) per gram of nanozymes,which is hundreds of times higher than most of the natural hydrogenase or hydrogenase mimics.Furthermore,the NiCo_(2)O_(4) nanozyme can robustly disrupt the adhesive oxidized layer of aluminum and enable the full consumption of electrons from aluminum.In contrast to the often-expensive synthetic catalysts that rely on rare elements and consume high energy,we envision that this NiCo_(2)O_(4) nanozyme can potentially provide an upgrade for current hydrogen evolution,accelerate the development of scale-up hydrogen production,and generate a clean energy future.

关 键 词：hydrogenase mimic nanozyme hydrogen evolution reaction aluminum activation WATER-SPLITTING 

分 类 号：O64[理学—物理化学]