Preface to Special Issue of Membranes and Membrane Processes based on Confined Mass Transfer

Membrane separation is playing an increasingly critical role in diverse fields as a cost-efficient and energy-economic technology. Ultra-filtration and microfiltration based on the size-sieving mechanism of macroporous media have been clearly elucidated using classical theories of mass transfer. However, membrane processes including pervaporation, gas separation, ion exchange, nanofiltration, reverse osmosis, etc., mainly involve mass transfer in narrow spaces whose sizes are comparable to the free distances of molecules mobility, i.e., confined mass transfer. Currently, it is not fully understood for the confined mass transfer in these membranes, and consequently such membranes are mainly empirically manufactured.     

Special Issue onEI北大核心CSCD

“Low-dimensional Integrated Opto Electronic Materials and Devices”1.Summary and scope Low-dimensional(LD)materials and devices are backbones of new generation optoelectronic eireuitries and systems with higher integration capacity and better performance.Entering post-Moore era,silicon(Si)-based electronic transistr technology is confronted with increasing short-channel and energy consumption bottlenecks.     

Special Issue on

正High-throughput Experimental and Modeling Research toward Advanced Batteries1.Summary and Scope Advanced batteries play a key role in the development of portable and wearable electronics,electric and hybrid vehicles,smart grids and back-up power sources,and many more emerging applications.In most cases,exploration of new and alternative battery materials starts from known literature and follows time-consuming trial-and-error experimental or modeling approaches.The