Polyaniline/Vanadium Pentoxide Layer-by-Layer Electrodes for Energy Storage

2011 ◽  
Vol 24 (1) ◽  
pp. 181-189 ◽  
Author(s):  
Lin Shao ◽  
Ju-Won Jeon ◽  
Jodie L. Lutkenhaus
2014 ◽  
Vol 2 (35) ◽  
pp. 14421-14428 ◽  
Author(s):  
Lin Shao ◽  
Ju-Won Jeon ◽  
Jodie L. Lutkenhaus

Spray-assisted layer-by-layer assembly allows for the rapid assembly of porous battery electrodes containing functional cathode materials.


Micromachines ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 13 ◽  
Author(s):  
Bin Zhang ◽  
Jaehyun Lee ◽  
Mincheol Kim ◽  
Naeeung Lee ◽  
Hyungdong Lee ◽  
...  

The macroscopic assembly of two-dimensional materials into a laminar structure has received considerable attention because it improves both the mechanical and chemical properties of the original materials. However, conventional manufacturing methods have certain limitations in that they require a high temperature process, use toxic solvents, and are considerably time consuming. Here, we present a new system for the self-assembly of layer-by-layer (LBL) graphene oxide (GO) via an electrohydrodynamic (EHD) jet printing technique. During printing, the orientation of GO flakes can be controlled by the velocity distribution of liquid jet and electric field-induced alignment spontaneously. Closely-packed GO patterns with an ordered laminar structure can be rapidly realized using an interfacial assembly process on the substrates. The surface roughness and electrical conductivity of the LBL structure were significantly improved compared with conventional dispensing methods. We further applied this technique to fabricate a reduced graphene oxide (r-GO)-based supercapacitor and a three-dimensional (3D) metallic grid hybrid ammonia sensor. We present the EHD-assisted assembly of laminar r-GO structures as a new platform for preparing high-performance energy storage devices and sensors.


2017 ◽  
Vol 5 (32) ◽  
pp. 16865-16872 ◽  
Author(s):  
Dongbo Yu ◽  
Liang Ge ◽  
Xinlai Wei ◽  
Bin Wu ◽  
Jin Ran ◽  
...  

A promising strategy is demonstrated for the syntheses of metal organic framework/graphene oxide hybrid films with highly ordered layer-by-layer architecture, and the derived hybrids exhibit remarkable energy storage performances.


Nanoscale ◽  
2018 ◽  
Vol 10 (13) ◽  
pp. 6005-6013 ◽  
Author(s):  
Zehang Zhou ◽  
Weerapha Panatdasirisuk ◽  
Tyler S. Mathis ◽  
Babak Anasori ◽  
Canhui Lu ◽  
...  

Highly flexible and foldable supercapacitor electrodes were fabricated by the layer-by-layer assembly of Ti3C2Tx(MXene) nanoflakes with carbon nanotubes on electrospun polymer fiber networks.


Author(s):  
Xin Guo ◽  
Shuai Wang ◽  
Linpeng Yu ◽  
Chunyu Guo ◽  
Peiguang Yan ◽  
...  

Two-dimensional (2D) heterostructures that combine advantages of individual components and overcome the associated drawbacks show great prospects for electrochemical energy storage. However, the prevailing layer-by-layer horizontal 2D stacks with tortuous...


Nanoscale ◽  
2015 ◽  
Vol 7 (42) ◽  
pp. 17685-17692 ◽  
Author(s):  
Veerabhadrarao Kaliginedi ◽  
Hiroaki Ozawa ◽  
Akiyoshi Kuzume ◽  
Sivarajakumar Maharajan ◽  
Ilya V. Pobelov ◽  
...  

Reporting the first study on the electrochemical energy storage application of surface immobilized ruthenium-complex multilayers.


Author(s):  
Danny Illera ◽  
Chatura Wickramaratne ◽  
Diego Guillen ◽  
Chand Jotshi ◽  
Humberto Gomez ◽  
...  

The outstanding properties of single-layer graphene sheets for energy storage are hindered as agglomeration or restacking leads to the formation of graphite. The implications of the aforementioned arise on the difficulties associated with the aqueous processing of graphene sheets: from large-scale production to its utilization in solvent-assisted techniques like spin coating or layer-by-layer deposition. To overcome this, aqueous dispersions of graphene were stabilized by cellulose nanocrystals colloids. Aqueous cellulose nanocrystals dispersion highlights as a low-cost and environmentally friendly stabilizer towards graphene large-scale processing. Colloids of cellulose nanocrystals are formed by electrostatic repulsion of fibrils due to de-protonated carboxyl or sulfate half-ester functional groups. Graphene dispersions are obtained by hydrothermal reduction of electrochemically exfoliated graphene oxide in the presence of cellulose nanocrystals. This approach allows the preservation of the intrinsic properties of the nano-sheets by promoting non-covalent interactions between cellulose and graphene. The dispersions could be cast to form free-standing flexible conducting films or freeze-dried to form foams and aerogels for capacitive energy storage.


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