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2篇 您的检索式:作者名="Shangfa Pan"
    题名 作者 年代 出处 被引量
1Nanofluidic osmotic power generation from CO_(2) with cellulose membranes显示文摘The diffusion of chemical species down concentration gradient is a ubiquitous phenomenon that releases Gibbs free energy.Nanofluidic materials have shown great promise in harvesting the energy from ionic diffusion via the reverse electrodialysis process.In principle,any chemicals that can be converted to ions can be used for nanofluidic power generation.In this work,we demonstrate the power generation from the diffusion of CO_(2) into air using nanofluidic cellulose membranes.By dissolving CO_(2) in water,a power density of 87 mW/m^(2) can be achieved.Using monoethanolamine solutions to dissolve CO_(2),the power density can be increased to 2.6 W/m^(2).We further demonstrate that the waste heat released in industrial and carbon capture processes,can be simultaneously harvested with our nanofluidic membranes,increasing the power density up to 16 W/m^(2) under a temperature difference of 30°C.Therefore,our work should expand the application scope of nanofluidic osmotic power generation and contribute to carbon utilization and capture technologies.Chang Chen Xueli Liu Renxing Huang Kuankuan Liu Shangfa Pan Junchao Lao Qi Li Jun Gao Lei Jiang 2023Green Carbon2023,1,1:0
2Biomimetic high-flux proton pump constructed with asymmetric polymeric carbon nitride membrane显示文摘Biological proton pumps ferry protons in an active manner and have a high flux(a few to 10 protons/(s·nm^(2))).Integrating these features in an artificial membrane may open the way for a wide range of applications but it remains challenging.In this work,we employed a structural engineering strategy to construct an asymmetric photonic polymeric carbon nitride(C3N4)membrane that exhibited photo-driven high flux proton pumping performance.The ion transport path through the membrane is reminiscent of that in the high-flux asymmetric biological ion channel.In addition,it has a photonic structure that mimics the mosquito compound eyes with improved light adsorption.Finally,the asymmetric structure constitutes an isotype(n-n)heterojunction that enhances the separation of the light-induced electron-hole pairs.As a result,the membrane shows a flux of 89μA/cm^(2)under 100 mW/cm^(2)white light illumination(approximately one sun),the highest ever reported.This translates to a pumping rate of~6 proton/(s·nm^(2)),comparable to the biological counterpart.This work highlights the potential of multi-level structural engineering to construct high-performance bionic devices,and may find applications in solar energy harvesting and solar powered membrane process.Yizhu Zhang Shangfa Pan Yuanyuan Zhang Shaoqiang Su Xia Zhang Jian Liu Jun Gao 2023Nano Research2023,16,1:0
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