Simultaneous Solar-driven Steam and Electricity Generation by Cost-effective,Easy Scale-up MnO 2-based Flexible Membranes  

作　　者：Jiaxin Ren Yang Ding Jiang Gong Jinping Qu Ran Niu 

机构地区：[1]Key Laboratory of Material Chemistry for Energy Conversion and Storage,Ministry of Education,Hubei Key Laboratory of Material Chemistry and Service Failure,Hubei Engineering Research Center for Biomaterials and Medical Protective Materials,Semiconductor Chemistry Center,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,China [2]National Engineering Research Center of Novel Equipment for Polymer Processing,Key Laboratory of Polymer Processing Engineering,Ministry of Education,Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing,School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510641,China

出　　处：《Energy & Environmental Materials》2023年第3期184-192,共9页能源与环境材料（英文）

基　　金：supported by Huazhong University of Science and Technology(No.2021XXJS036,3004013134);National Natural Science Foundation of China(No.51903099,22102059);the National Key Technology R&D Program of China(No.2020YFB1709301,2020YFB1709304,2021YFC2101705);the Innovation and Talent Recruitment Base of New Energy Chemistry and Device(No.B21003)。

摘　　要：Harvesting solar energy in an effective manner for steam and electricity generation is a promising technique to simultaneously cope with the energy and water crises.However,the construction of efficient and easy scale-up photothermal materials for steam and electricity cogeneration remains challenging.Herein,we report a facile and cost-effective strategy to prepare MnO_(2)-decorated cotton cloth(MCx).The wide adsorption spectrum and excellent photothermal conversion ability of the in situ-formed MnO_(2)nanoparticles make the MCx to be advanced photothermal materials.Consequently,the hybrid device integrated with MCx as the photothermal layer and the thermoelectric(TE)module for electricity power conversion exhibits an extremely high evaporation rate of 2.24 kg m^(−2)h^(−1)under 1 kW m^(−2)irradiation,which is ranked among the most powerful solar evaporators.More importantly,during solar evaporation,the hybrid device produces an open-circuit voltage of 0.3 V and a power output of 1.6 W m^(−2)under 3 Sun irradiation,and outperforms most of the previously reported solar-driven electricity generation devices.Therefore,the integrated device with synergistic solar-thermal utilization opens up a green way toward simultaneous solar vapor and electric power generation in remote and resource-constrained areas.

关 键 词：photothermal material solar desalination solar energy solar steam generator THERMOELECTRICS 

分 类 号：TM615[电气工程—电力系统及自动化] TB34[一般工业技术—材料科学与工程]