Osmotic-Enhanced-Photoelectrochemical Hydrogen Production Based on Nanofluidics  

作　　者：Pei Liu Xiao-Ya Gao Li-Jun Zhang Weipeng Chen Yuhao Hu Xiang-Yu Kong Xu-Bing Li Liping Wen Chen-Ho Tung Li-Zhu Wu Lei Jiang 

机构地区：[1]Key Laboratory of Bio-inspired Materials and Interfacial Science,Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190 [2]School of Future Technology,University of Chinese Academy of Sciences,Beijing 100049

出　　处：《CCS Chemistry》2023年第9期2012-2022,共11页中国化学会会刊（英文）

基　　金：supported by the National Key R&D Program of China(grant nos.2017YFA02-06900,2017YFA0206904,2017YFA0206903,and 2021YFA1500800);the National Natural Science Foundation of China(grant nos.21625303,22122207,21905287,21988102,22088102,and 21971251).

摘　　要：Harvesting clean energy such as solar energy and salinity gradient energy directly from the surrounding environment has attracted great attention.A promising proof-of-concept combination of cation-selective membrane-based osmotic energy with photoelectrochemical-based solar energy has been developed,highlighting the great potential for the direct conversion of osmotic energy to hydrogen energy.With the help of a 50-fold concentration gradient,the MXene-CdSe quantum dots system exhibits the highest photocurrent enhancement ratio(Δ/_(L-H)/Δ/_(L-L)),and the hydrogen production is increased by about 33%at a bias of 0 V versus reversible hydrogen electrode.Directly converting osmotic energy and solar energy into hydrogen energy suggests the possibility of coupling osmotic energy with other renewable energy sources.

关 键 词：nanofluidics ion transport H2 evolution energy conversion artificial photosynthesis 

分 类 号：TQ116.2[化学工程—无机化工]