J
Junyi Ji
Researcher at Sichuan University
Publications - 92
Citations - 5148
Junyi Ji is an academic researcher from Sichuan University. The author has contributed to research in topics: Graphene & Chemistry. The author has an hindex of 27, co-authored 67 publications receiving 4064 citations. Previous affiliations of Junyi Ji include Tianjin University & University of Texas at Austin.
Papers
More filters
Journal ArticleDOI
Nanoporous Ni(OH)2 thin film on 3D Ultrathin-graphite foam for asymmetric supercapacitor.
Junyi Ji,Lili Zhang,Hengxing Ji,Yang Li,Xin Zhao,Xin Bai,Xiaobin Fan,Fengbao Zhang,Rodney S. Ruoff +8 more
TL;DR: Nanoporous nickel hydroxide thin film was grown on the surface of ultrathin-graphite foam (UGF) via a hydrothermal reaction and used as the electrode in a supercapacitor without the need for addition of either binder or metal-based current collector.
Journal ArticleDOI
Generation of B-doped graphene nanoplatelets using a solution process and their supercapacitor applications.
Jongwoo Han,Lili Zhang,Seungjun Lee,Junghoon Oh,Kyoung-Seok Lee,Jeffrey R. Potts,Junyi Ji,Xin Zhao,Rodney S. Ruoff,Sungjin Park +9 more
TL;DR: Two- and three-electrode cell measurements showed that energy storage in the B-rG-O supercapacitors was contributed by ion adsorption on the surface of the nanoplatelets in addition to electrochemical redox reactions.
Journal ArticleDOI
Enhanced thermal conductivity of phase change materials with ultrathin-graphite foams for thermal energy storage
Hengxing Ji,Daniel P. Sellan,Michael T. Pettes,Xianghua Kong,Junyi Ji,Li Shi,Rodney S. Ruoff +6 more
TL;DR: In this article, the authors demonstrate that embedding continuous ultrathin-graphite foams (UGFs) with volume fractions as low as 0.8-1.2 vol% in a PCM can increase the power capacity by up to 18 times, with negligible change in the PCM melting temperature or mass specific heat of fusion.
Journal ArticleDOI
Graphene-Encapsulated Si on Ultrathin-Graphite Foam as Anode for High Capacity Lithium-Ion Batteries
Junyi Ji,Junyi Ji,Hengxing Ji,Lili Zhang,Xin Zhao,Xin Bai,Xiaobin Fan,Fengbao Zhang,Rodney S. Ruoff +8 more
TL;DR: The Si/graphene/UGF composite presents excellent stability and relatively high overall capacity when tested as an anode for rechargeable lithium ion batteries.
Journal ArticleDOI
Palladium Nanoparticle-Graphene Hybrids as Active Catalysts for the Suzuki Reaction
TL;DR: In this paper, the palladium nanoparticle-graphene hybrid was used as an efficient catalyst for the Suzuki reaction under aqueous and aerobic conditions, with the reaction reaching completion in as little as 5 min.