© SIOC, CAS, Shanghai & WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 34, Issue 1
Jifeng Wu, Anan Zhou, Zhifeng Huang, Lei Li and Hua Bai
Article first published online: 20 JAN 2016 | DOI: 10.1002/cjoc.201690000
The cover picture shows the structure of three-dimensional graphene/Fe2O3 composite as a promising electrode material for supercapacitor, as well as the potential application of supercapacitor in electric automobile. The composites are synthesized via a one-step reaction between graphene oxide and Fe2+ at a mild condition. During the reaction, graphene oxide sheets are reduced and self-assemble into a 3D network, while Fe2+ is converted into Fe2O3 and deposited onto the graphene network. This structure facilitates the diffusion of the electrolyte and the electron transfer between Fe2O3 and the current collector, thus endowing the composites with high capacitive performance. More details are discussed in the article by Bai et al. on page 67–72.
Guozhen Ji and Shengming Ma
Article first published online: 20 JAN 2016 | DOI: 10.1002/cjoc.201690001
Article first published online: 20 JAN 2016 | DOI: 10.1002/cjoc.201690002
Article first published online: 20 JAN 2016 | DOI: 10.1002/cjoc.201690003
Xingxing Gu, Shanqing Zhang and Yanglong Hou
Article first published online: 8 JAN 2016 | DOI: 10.1002/cjoc.201500675
Tao Liang, Yuhan Kong, Hongzheng Chen and Mingsheng Xu
Article first published online: 28 OCT 2015 | DOI: 10.1002/cjoc.201500429
Active carbon species are extracted from solid carbon sources via thermal treatment or physical vapour deposition methods. These carbon containing species could recrystallize to form graphene with the assistance of metal catalyst or high energy.
Donghai Liu, Chen Zhang, Xiaohui Lv, Xiaoyu Zheng, Lei Zhang, Linjie Zhi and Quan-Hong Yang
Article first published online: 29 JUN 2015 | DOI: 10.1002/cjoc.201500321
A three-dimensional graphene/S hybrid (G/S) is prepared. Freeze drying and evaporation-induced drying can induce different density and porous structure of G/S. The resulting hybrid can deliver a high specific capacity and good cyclicality.
Jingli Zhang, Man Jiang, Lingbao Xing, Kun Qin, Tianzhen Liu, Jin Zhou, Weijiang Si, Hongyou Cui and Shuping Zhuo
Article first published online: 13 NOV 2015 | DOI: 10.1002/cjoc.201500656
Three-dimensional porous sulfur-doped graphene hydrogels are prepared by using tetrathiafuvalene as reducing and doping agents. SGHs show superior capacitive performance with high specific capacitance, excellent rate capability and good long-term cycle stability in KOH electrolyte.
Jinsheng Cheng, Weihong Wan and Wenjuan Zhu
Article first published online: 12 AUG 2015 | DOI: 10.1002/cjoc.201500339
A facile one-pot solvothermal approach to synthesize TiO2 nanobelt/graphene composites (TiO2/GR) was developed. The reduction of graphene oxide (GO) nanosheets was accompanied by generation of TiO2/GR in one-step. In vitro experiments revealed that the renal cancer (RENCA) cell viability decreased sharply to 4.72% in the presence of the resulting composites in the near infrared light (NIR) window.
Qinqin Zhou, Shan Chen, Miao Zhang, Liduo Wang, Yingru Li and Gaoquan Shi
Article first published online: 28 OCT 2015 | DOI: 10.1002/cjoc.201500609
Dye sensitized solar cell with a TiO2 nanotube/Ti mesh photoanode and a sulfuric acid-treated poly(3,4- ethylenedioxythiophene):poly(styrenesulfonate)/less-defective reduced graphene oxide composite film counter electrode displayed an excellent mechanical stability and bending durability.
Article first published online: 15 DEC 2015 | DOI: 10.1002/cjoc.201500700
Three-dimensional (3D) Fe2O3/chemically converted graphene composites are synthesized via a one-step reaction between graphene oxide and Fe2+ at a mild condition, and used as the electrode materials in supercapacitors. During the reaction, graphene oxide sheets are reduced and self-assemble into a 3D network, while Fe2+ is converted into Fe2O3 and deposited onto the graphene network. The composites showed high specific capacitance and good cycling stability, thus they are proved to be promising cathode materials for supercapacitors.
Wei Fan, Miao Yue-E, Xingyi Ling and Tianxi Liu
Article first published online: 8 JAN 2016 | DOI: 10.1002/cjoc.201500585
Free-standing and flexible Ag nanocube/GO hybrid papers have been fabricated and exhibit excellent SERS activity with prolonged life time and feasibility for real-time analysis.
Yanping Li, Yuyu Zhang, Gaoyi Han, Yaoming Xiao, Miaoyu Li and Wen Zhou
Article first published online: 8 JAN 2016 | DOI: 10.1002/cjoc.201500747
A novel interface G/PANI composite film was constructed during the electrodeposition. The resulting G/PANI-based enzyme biosensor exhibited excellent sensitivity, good stability, fast electrochemical response and good reproducibility.
Cuixian Liu, Gaoyi Han, Yunzhen Chang, Yaoming Xiao, Yanping Li, Miaoyu Li and Haihan Zhou
Article first published online: 28 OCT 2015 | DOI: 10.1002/cjoc.201500546
Hydrogels of reduced graphene oxide (rGOHGs) were synthesized by using sodium hypophosphite as reducing reagent. The rGOHGs prepared with different concentrations of NaH2PO2 exhibit different microstructures and capacitive properties, some have larger specific capacitance and some have high-rate capability.
Wen Zhou, Gaoyi Han, Yaoming Xiao, Yunzhen Chang, Miaoyu Li and Yuyu Zhang
Article first published online: 29 SEP 2015 | DOI: 10.1002/cjoc.201500511
Sulfonated reduced graphene oxide synthesized by using L-ascorbic acid as reducing reagent and aryl diazonium salt of sulfanilic acid as functional group has large water-solubility and good capacitive properties.
Xin Fan, Zhewei Yang and Zheng Liu
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500076
Graphene/polyaniline nanotube (GPNT) composite was synthesized using Vitamin C as both the template of polyaniline nanotube via in situ polymerization of aniline and the reducing agent of graphene oxide.
Ruijing Wang, Pengfei Jia, Yuying Yang, Ning An, Yadi Zhang, Hongying Wu and Zhongai Hu
Article first published online: 15 DEC 2015 | DOI: 10.1002/cjoc.201500595
rGONR was uniformly coated by RuO2 particles using a facile route. With unique microstructure and high RuO2 loading, the electrode material exhibits a high specific capacitance, and excellent rate capability.
Tianye Liu, Hongxia Yan, Zhengyan Chen, Peilun Xu and Shikun Su
Article first published online: 15 DEC 2015 | DOI: 10.1002/cjoc.201500506
TDTA/rGO, A new s-triazine derivative modified graphene composite, in which 2,4,6-tri(2,4-dihydroxyphenyl)-1,3,5-triazine (TDTA) was attached onto reduced graphene oxide (rGO) via the noncovalent functionalization approach, was reported. The composite is found to improve greatly the dispersity of rGO in DMF and to be a good UV-absorber.