Zi-Han Zhou
Sichuan University
Penetration (firestop)CarbonationWater vaporAdsorptionCarbonizationComposite materialThermal decompositionElectromagnetic interferenceParticle sizeMicroelectronicsMaterials scienceElectrical conductorElectromagnetic shieldingScience, technology and societyRegenerated celluloseChemical substanceReflection lossUrea-formaldehydeVapor barrierPolyacrylamideEpichlorohydrinCelluloseSodium lignosulfonateBase oilAerogelLithium hydroxideLubricantPolyimideImaginationElectromagnetic interference shieldingGrapheneMoleculeRaman spectroscopyChemical engineeringEMIMicrowaveOptoelectronicsCarbonCarbon nanotubePolymerAmorphous solidThermal stabilityAbsorption (electromagnetic radiation)Contact anglePorosityBound waterDielectric lossNanocomposite
8Publications
5H-index
88Citations
Publications 8
Newest
#1Yue-Yi Wang (Sichuan University)H-Index: 4
#2Zi-Han Zhou (Sichuan University)H-Index: 5
Last. Zhong-Ming Li (Sichuan University)H-Index: 71
view all 7 authors...
Abstract Carbon aerogels derived from biomass have been considered as potential microwave absorption (MA) materials because of the intrinsic hierarchical porous structure, low density, and excellent heat resistance. However, high carbonation temperature or long carbonation time is always required to achieve optimized MA performance. Herein, the low-temperature carbonization of carbon nanotube (CNT)/cellulose aerogel was realized to develop a carbon aerogel for efficient MA. Compared with the car...
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#1Ping-Ping Gao (Sichuan University)H-Index: 1
#2Zi-Han Zhou (Sichuan University)H-Index: 5
Last. Zhong-Ming Li (Sichuan University)H-Index: 71
view all 9 authors...
Abstract Regulating the micro-structure of microcapsules containing lubricant is paramount to their properties and the subsequent self-lubrication performance of the composites. In this study, poly(urea-formaldehyde) (PUF) microcapsules containing lube base oil as lubricant have been fabricated by in-situ polymerization technology. The structure and properties of PUF microcapsules are investigated by altering the emulsifier content, homogenization time, oil viscosity and synthetic method. The co...
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#1Zi-Han Zhou (Sichuan University)H-Index: 5
#2Meng-Zhu Li (Sichuan University)H-Index: 4
Last. Zhong-Ming Li (Sichuan University)H-Index: 71
view all 7 authors...
Developing high-performance electromagnetic interference (EMI) shielding materials with high absorption coefficient is highly desired for eliminating the secondary pollution of reflected electromagnetic wave (EMW). However, it has long been a daunting challenge to achieve high shielding effectiveness (SE) and ultralow or no reflection SE simultaneously. Herein, highly porous and conductive carbon nanotube (CNT) lingered carbon aerogel with a meticulously designed hierarchically porous structure ...
14 CitationsSource
#1Yue-Yi Wang (Sichuan University)H-Index: 4
#2Zi-Han Zhou (Sichuan University)H-Index: 5
Last. Zhong-Ming Li (Sichuan University)H-Index: 71
view all 8 authors...
Excellent electromagnetic interference (EMI) shielding ability, light weight, and good heat resistance are highly required for practical applications of EMI shielding materials, such as in areas of aerospace, aircraft, and automobiles. Herein, a lightweight and robust carbon nanotube (CNT)/polyimide (PI) foam was developed for efficient and heat-resistant EMI shielding. Thanks to poly(vinyl pyrrolidone) (PVP) as a surfactant that not only promotes the uniform dispersion of CNTs to form perfect C...
30 CitationsSource
#1Zi-Han Zhou (Sichuan University)H-Index: 5
#2Ying Liang (Sichuan University)H-Index: 1
Last. Zhong-Ming Li (Sichuan University)H-Index: 71
view all 9 authors...
Abstract Developing ultralight, highly conductive carbon aerogels with facilely tunable microscopic structure is still a long-standing issue to effectively shield the electromagnetic interference (EMI). Here, highly porous and conductive all biomass-derived carbon aerogels were first successfully achieved by carbonizing cellulose aerogels, which held excellent structure designability by controlling cellulose content in lithium hydroxide/urea aqueous solution, porogen composition in solvent excha...
21 CitationsSource
#1Biao Yang (Sichuan University)H-Index: 5
#2Wen-Qiang Hua (CAS: Chinese Academy of Sciences)H-Index: 1
Last. Zhong-Ming Li (Sichuan University)H-Index: 71
view all 9 authors...
4 CitationsSource
#1Lei Li (Sichuan University)H-Index: 5
#2Run-Hua Liu (Sichuan University)H-Index: 1
Last. Zhong-Ming Li (Sichuan University)H-Index: 71
view all 8 authors...
Substantial adsorption of water vapor triggered by hydrogen-bonding interactions between water molecules and cellulose chains (or nanoplates) is hard to avoid in nanocomposite films, although the addition of nanoplates can improve the oxygen (or carbon dioxide) barrier property. In the present work, an effective strategy is raised to decline adsorption by weakening hydrogen-bonding interactions via chemical cross-linking by epichlorohydrin (ECH) without sacrificing the homogeneous dispersion of ...
2 CitationsSource
#1Lei Li (Sichuan University)H-Index: 5
#2Zi-Han Zhou (Sichuan University)H-Index: 5
Last. Zhong-Ming Li (Sichuan University)H-Index: 71
view all 8 authors...
Abstract Cellulose films are of poor water-vapor barrier performance. Herein, we put forward an effective way to suppress adsorption by crosslinking of hydroxyl groups via epichlorohydrin (ECH), meanwhile graphene oxide (GO) nanosheets are utilized to prolong the pathway of vapor penetration. The strategy confers a significant enhancement of vapor barrier performance as well as mechanical properties to cellulose-based films. Specifically, an outstanding reduction of 67.4% in water-vapor permeabi...
4 CitationsSource