首页|Simultaneous Solar-driven Steam and Electricity Generation by Cost-effective,Easy Scale-up MnO2-based Flexible Membranes
Simultaneous Solar-driven Steam and Electricity Generation by Cost-effective,Easy Scale-up MnO2-based Flexible Membranes
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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 MnO2-decorated cotton cloth(MCx).The wide adsorption spectrum and excellent photothermal conversion ability of the in situ-formed MnO2 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.
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
National Engineering Research Center of Novel Equipment for Polymer Processing Key Laboratory of Polymer Processing Engineering Min
华中科技大学项目华中科技大学项目国家自然科学基金国家自然科学基金国家科技攻关计划国家科技攻关计划国家科技攻关计划Innovation and Talent Recruitment Base of New Energy Chemistry and Device100 Talents Program of the Hubei Provincial Government