Transpiration-inspired Capillary for Synchronous Synthesis and Patterning of Silver Nanoparticles  

作　　者：CHEN Bingda ZHANG Zelong SU Meng QIN Feifej PAN Qi XIE Daixi YANG Xu ZHANG Kun ZHANG Zeying XIE Hongfei CARMELIET Jan SONG Yanlin 

机构地区：[1]Key Laboratory of Green Printing,Institute of Chemistry,Chinese Academy of Sciences,Beijing Engineering Research Center of Nanomaterials for Green Printing Technology,Beijing National Laboratory for Molecular Sciences(BNLMS),Beijing,100190,P.R.China [2]University of Chinese Academy of Sciences,Beijing,100049,P.R.China [3]Institute of Extreme Mechanics and School of Aeronautics,Northwestern Polytechnical University,Xi’an,710072,P.R.China [4]Chair of Building Physics,Department of Mechanical and Process Engineering,ETH Zürich,Zürich,8092,Switzerland

出　　处：《Chemical Research in Chinese Universities》2023年第1期133-138,共6页高等学校化学研究（英文版）

基　　金：supported by the National Key R&D Program of China (No.2018YFA0208501);the Fund of Youth Innovation Promotion Association CAS,China (No.2020032);the Fund of Beijing Nova Program from Beijing Municipal Science&Technology Commission,China (Nos.Z201100006820037,Z211100002121001);the National Natural Science Foundation of China (Nos.52222313,22075296,91963212,51961145102);the Fund of Beijing National Laboratory for Molecular Sciences,China (No.BNLMS-CXXM-202005).

摘　　要：Traditional synthesis strategy of nanomaterials with complicated process and high cost limits their applications.Here,we propose a facile process for the synchronous synthesis and patterning of silver nanoparticles(Ag NPs)through the self-driven microchannel reactor with the capillary effect inspired by transpiration.The evaporation contributes to capillary and accumulation effects in the microchannels.The silver reactant-containing droplets can be spontaneously divided and distributed in multiple microchannels during the whole fabrication process by the capillary effect.The newly formed Ag NPs at the gas-liquid interface can be assembled on both sides of the microchannels by the accumulation effect.The capillary effect decreases the disturbances,which ensures the uniformity of the patterning.By the combination of microchannels with different widths,various Ag NPs-assembled patterns with stable electrical properties are achieved.This efficient strategy with a simple fabrication procedure is towards the technological engineering of nanoscale architected materials.

关 键 词：TRANSPIRATION Capillary effect Droplet manipulation Nanoparticle PATTERNING 

分 类 号：O62[理学—有机化学]