“On-off”switch for H_(2)and O_(2)generation from HCOOH resp.H_(2)O_(2)  

作　　者：Wenkai Huang Fuhua Xu Dong‐Sheng Li Didier Astruc Xiang Liu 

机构地区：[1]Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials,College of Materials and Chemical Engineering,China Three Gorges University,Yichang,Hubei,China [2]ISM,UMR CNRS N°5255,Universitéde Bordeaux,Talence Cedex,France

出　　处：《Carbon Energy》2023年第3期75-86,共12页碳能源（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Number:21805166;111 Project of China,Grant/Award Number:D20015;Ministryof Education,Hubei province,China,Grant/Award Number:T2020004;Foundation of Science and Technology Bureau of Yichang City,Grant/Award Number:A21‐3‐012。

摘　　要：In spite of the numerous advances in the development of H_(2)and O_(2)evolutions upon water splitting,the separation of H_(2)from O_(2)still remains a severe challenge.Herein,the novel dual-functional nanocatalysts Pd/carbon nanosphere(CNS),obtained via immobilization of ultrafine Pd nanoparticles onto CNS,are developed and employed for both selective H_(2)generation from HCOOH dehydrogenation and O_(2)evolution from H_(2)O_(2)decomposition.In these reactions,the highest activities for Pd/CNS-800(i.e.,calcinated at 800℃)are 2478 h−1 and 993 min^(−1)for H_(2)and O_(2)evolution,respectively.The highly efficient and selective“on-off”switch for selective H_(2)generation from HCOOH is successfully realized by pH adjustment.This novel and highly efficient nanocatalyst Pd/CNS-800 not only provides new approaches for the promising application of HCOOH and H_(2)O_(2)as economic and safe H_(2)and O_(2)carriers,respectively,for fuel cells,but also promotes the development of“on-off”switch for on-demand H_(2)evolution.

关 键 词：carbon nanospheres H_(2)generation O_(2)evolution “on-off”switch Pd nanoparticles 

分 类 号：O64[理学—物理化学]