By Joo Hyeon Heo With the depletion of natural resources, fuel cell technology has gained more and more attention as an alternative to conventional forms of energy. In fact, fuel cells can generate a significant amoung of electricity from a catalyst-facilitated chemical reaction between hydrogen and oxygen ions in a cell. However, present fuel …read more
Published in: Ulsan National University of Science and Institute
By ping wen J. Mater. Chem. A, 2015, Accepted ManuscriptDOI: 10.1039/C5TA02461G, Paperping wen, Peiwei Gong, Jinfeng Sun, Jinqing Wang, shengrong yangCurrently, metal-organic frameworks (MOFs) have been attracting great interest as a new kind of electrode materials for energy storage devices, because their porous skeleton would benefit access and transport of…The content of this …read more
Published in: Journal of Materials Chemistry A
By Wang Wang, Wenyue Liu, Yinxiang Zeng, Yi Han, Minghao Yu, Xihong Lu, Yexiang Tong
A facile and efficient electrochemical oxidation method to directly activated carbon cloth as an excellent electrode material for supercapacitors is reported. The flexible asymmetric supercapacitor devices based on activated carbon cloth anodes reach a remarkable energy density and excellent long-term durability.
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Published in: Advanced Materials
By Rutao Wang, Junwei Lang, Peng Zhang, Zongyuan Lin, Xingbin Yan Li-ion hybrid capacitors (LIHCs), consisting of an energy-type redox anode and a power-type double-layer cathode, are attracting significant attention due to the good combination with the advantages of conventional Li-ion batteries and supercapacitors. However, most anodes are battery-like materials with the sluggish kinetics of Li-ion storage, which seriously restrict the …read more
Published in: Advanced Functional Materials
By Leiqiang Qin, Yunan Zhang, Xiaoyan Wu, Li Nian, Zengqi Xie, Linlin Liu, Yuguang Ma
Discotic hexa-peri-hexabenzocoronene (HBC) molecules are synthesized by electrochemical cyclodehydrogenation reaction and in situ self-assembled to π-electronic, discrete nanofibular objects with an average diameter about 70 nm, which are deposited directly onto the electrode. The nanofibers consist of columnar arrays of the π-stacked HBC molecules and the intercolumnar distance is determined …read more
Published in: Small
By Wenfeng Ren
J. Mater. Chem. A, 2015, Advance Article
DOI: 10.1039/C4TA07093C, PaperWenfeng Ren, Zailei Zhang, Yanhong Wang, Qiangqiang Tan, Ziyi Zhong, Fabing Su
Porous silicon/carbon microspheres assembled with fine carbon particles and silicon nanoparticles show improved electrochemical performance as anode materials for lithium ion batteries.
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Published in: Journal of Materials Chemistry A
By Xiaoliang Wu, Lili Jiang, Conglai Long, Tong Wei, Zhuangjun Fan
Layered double hydroxides (LDHs) are promising supercapacitor electrode materials due to their high specific capacitances. However, their electrochemical performances such as rate performance and energy density at a high current density, are rather poor. Accordingly, a facile strategy is demonstrated for the synthesis of the integrated porous Co–Al hydroxide nanosheets …read more
By A Shahul Hameed RSC Adv., 2014, Accepted Manuscript
DOI: 10.1039/C4RA11948G, PaperA Shahul Hameed, M. V. Venkatashamy Reddy, B.V.R Chowdari, Jagadese Vittal
Porous rGO/Fe3O4 nanocomposites have been prepared in this study by a simple precipitation reaction followed by freeze drying. When the sample was dried at 80 oC, spinel phase of Fe3O4…
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Via:: RSC Advances
Stretchable electrodes are reviewed by C. Yan and P. S. Lee on page 3443. The key innovative feature for stretchable energy storage devices is that the device is made of soft electrodes and can be deformed into various shapes without affecting the performance. The schematic illustration in the image shows …read more
Via:: Small
By Hanyung Jung, Chang Ve Cheah, Namjo Jeong and Junghoon Lee
We report direct printing and photo-thermal reduction of graphite oxide (GO) to obtain a highly porous pattern of interdigitated electrodes, leading to a supercapacitor on a flexible substrate. Key parameters optimized include the amount of GO delivered, the suitable photo-thermal energy level for effective flash reduction, and the substrate properties for appropriate adhesion after reduction. Tests with supercapacitors based on the printed-reduced GO showed performance comparable with commercial supercapacitors: the energy densities were 1.06 and 0.87 mWh/cm3 in ionic and organic electrolytes, respectively. The versatility in the architecture and choice of substrate …read more