Journal ArticleDOI
Direct laser writing of micro-supercapacitors on hydrated graphite oxide films
Wei Gao,Neelam Singh,Li Song,Zheng Liu,Arava Leela Mohana Reddy,Lijie Ci,Robert Vajtai,Qing Zhang,Bingqing Wei,Pulickel M. Ajayan +9 more
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TLDR
This work demonstrates the scalable fabrication of a new type of all-carbon, monolithic supercapacitor by laser reduction and patterning of graphite oxide films, which show good cyclic stability, and energy storage capacities comparable to existing thin-filmsupercapacitors.Abstract:
All-carbon microscale supercapacitors can be simply and scalably fabricated by the laser patterning and reduction of graphene oxide.read more
Citations
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Macroporous Graphene Frameworks for Sensing and Supercapacitor Applications
TL;DR: In this paper , a simple electrochemical approach for the direct deposition of a functionalized graphene framework by utilizing electrostatic interactions between graphene oxide (GO) and a cationic surfactant was described.
Journal ArticleDOI
Charge transport in lightly reduced graphene oxide: A transport energy perspective
R. S. Kajen,Natarajan Chandrasekhar,Kin Leong Pey,Chellappan Vijila,Manu Jaiswal,S. Saravanan,Andrew M.H. Ng,C. P. Wong,Kian Ping Loh +8 more
TL;DR: In this article, the concept of transport energy (TE) was used to model charge transport in lightly reduced graphene oxide (RGO) and demonstrate that the TE calculations match well with temperature dependent experimental I-V data on RGO.
Journal ArticleDOI
Graphene oxide for photonics, electronics and optoelectronics
TL;DR: Graphene oxide (GO) was initially developed to emulate graphene, but it was soon recognized as a functional material in its own right, addressing an application space that is not accessible to graphene and other carbon materials as mentioned in this paper .
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Reduced graphene oxide/iron oxide nanohybrid flexible electrodes grown by laser-based technique for energy storage applications
Albert Queraltó,A. Pérez del Pino,Constantin Logofatu,A. Datcu,Roger Amade,Enric Bertran-Serra,Eniko Gyorgy +6 more
TL;DR: In this article, the capacitance values of the composite layers were investigated by cyclic voltammetry in dark and under UV/visible light illumination, as well as by electrochemical impedance spectroscopy.
Journal ArticleDOI
Highly Tunable and Scalable Fabrication of 3D Flexible Graphene Micropatterns for Directing Cell Alignment.
Jiao Yang Lu,Xin Xing Zhang,Qiu Yan Zhu,Fu Rui Zhang,Wei Tao Huang,Xue Zhi Ding,Li Qiu Xia,Hong Qun Luo,Nian Bing Li +8 more
TL;DR: The 3D graphene patterns demonstrate their potential to biomedical applications, beyond the fields of electronics and photonics, which will allow to incorporate flexible graphene patterns for 3D cell or tissue culture to promote tissue engineering and drug testing applications.
References
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Journal ArticleDOI
Graphene-Based Ultracapacitors
TL;DR: CMG materials are made from 1-atom thick sheets of carbon, functionalized as needed, and here their performance in an ultracapacitor cell is demonstrated, illustrating the exciting potential for high performance, electrical energy storage devices based on this new class of carbon material.
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Large-area ultrathin films of reduced graphene oxide as a transparent and flexible electronic material
TL;DR: A solution-based method is reported that allows uniform and controllable deposition of reduced graphene oxide thin films with thicknesses ranging from a single monolayer to several layers over large areas, which could represent a route for translating the interesting fundamental properties of graphene into technologically viable devices.
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State of Understanding of Nafion
TL;DR: Light scattering experiments revealed that the radius of gyration had a linear dependence on the molar mass of the aggregates, which suggests that the particles are in the form of rods or ribbons, or at least some elongated structure.
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The Grotthuss mechanism
TL;DR: In this paper, it is suggested that the molecular mechanism behind prototropic mobility involves a periodic series of isomerizations between H 9 O 4 + and H 5 O 2 +, the first trigerred by hyrdogen-bond cleavage of a second-shell water molecule and the second by the reverse, hydrogen-bonder formation process.