Your browser doesn't support javascript.
loading
A Dynamic Graphene Oxide Network Enables Spray Printing of Colloidal Gels for High-Performance Micro-Supercapacitors.
Xiong, Zhiyuan; Yun, Xiawei; Qiu, Ling; Sun, Youyi; Tang, Bo; He, Zijun; Xiao, Jing; Chung, Dwayne; Ng, Tuck Wah; Yan, Hao; Zhang, Ranran; Wang, Xiaogong; Li, Dan.
Afiliação
  • Xiong Z; Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing, 100084, P. R. China.
  • Yun X; Department of Materials Science and Engineering, Monash University, Clayton, VIC, 3800, Australia.
  • Qiu L; Department of Chemical Engineering, The University of Melbourne, VIC, 3010, Australia.
  • Sun Y; Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing, 100084, P. R. China.
  • Tang B; Department of Materials Science and Engineering, Monash University, Clayton, VIC, 3800, Australia.
  • He Z; Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, 518055, P. R. China.
  • Xiao J; Department of Chemical Engineering, The University of Melbourne, VIC, 3010, Australia.
  • Chung D; Department of Chemical Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing, 100084, P. R. China.
  • Ng TW; Department of Materials Science and Engineering, Monash University, Clayton, VIC, 3800, Australia.
  • Yan H; Department of Materials Science and Engineering, Monash University, Clayton, VIC, 3800, Australia.
  • Zhang R; Laboratory for Optics and Applied Mechanics, Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC, 3800, Australia.
  • Wang X; Laboratory for Optics and Applied Mechanics, Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC, 3800, Australia.
  • Li D; School of Materials Science and Engineering, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing, 100084, P. R. China.
Adv Mater ; 31(16): e1804434, 2019 Apr.
Article em En | MEDLINE | ID: mdl-30848003
ABSTRACT
Properly controlling the rheological properties of nanoparticle inks is crucial to their printability. Here, it is reported that colloidal gels containing a dynamic network of graphene oxide (GO) sheets can display unusual rheological properties after high-rate shearing. When mixed with polyaniline nanofiber dispersions, the GO network not only facilitates the gelation process but also serves as an effective energy-transmission network to allow fast structural recovery after the gel is deformed by high-rate shearing. This extraordinary fast recovery phenomenon has made it possible to use the conventional air-brush spray technique to print the gel with high-throughput and high fidelity on nonplanar flexible surfaces. The as-printed micro-supercapacitors exhibit an areal capacitance 4-6 times higher than traditionally spray-printed ones. This work highlights the hidden potential of 2D materials as functional yet highly efficient rheological enhancers to facilitate industrial processing of nanomaterial-based devices.
Palavras-chave
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article