Cheng Yang
Beijing University of Chemical Technology
PseudocapacitanceElectrospinningIonNanotechnologyCarbon nanofiberMaterials scienceLithium-ion capacitorOxideAerogelGrapheneChemical engineeringCathodeCarbonCarbon nanotubeCapacitorLithiumSupercapacitorMesoporous materialAnodeNanofiber
7Publications
5H-index
103Citations
Publications 6
Newest
#1Cheng YangH-Index: 5
#2Jianguo RenH-Index: 1
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
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Abstract The development of high-energy lithium-ion and sodium-ion capacitors (LICs and SICs) is still a challenge due to the kinetics mismatch between the insertion/deinsertion anode and adsorption/desorption cathode. Here, high-level N/P-doped Sn-carbon nanofibers (Sn-NP-CNFs) were fabricated via an electrospinning technique followed by pre-oxidization and carbonization. The N/P-doping increased the defects and carbon interlayer distance to inhibit the precipitation and volume expansion of the...
3 CitationsSource
#1Nizao Kong (Huada: Beijing University of Chemical Technology)H-Index: 2
#2Mengzhen Jia (Huada: Beijing University of Chemical Technology)H-Index: 1
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
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Lithium-ion capacitor (LIC) consisting of a lithium-ion battery (LIB)-type anode and a supercapacitor (SC)-type cathode gains wide attention on account of the integration with the merits of high-energy LIB and high-power SC. However, LIC usually shows low energy/power density at high charge/discharge rate due to the sluggish charge/discharge kinetics of the LIB-type anode. Herein, to address this issue, we develop a self-supported anode material for LIC (V2O3@CNFs) with good charge transfer kine...
8 CitationsSource
#1Cheng Yang (Huada: Beijing University of Chemical Technology)H-Index: 5
#2Mengyan Zhang (Huada: Beijing University of Chemical Technology)H-Index: 1
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
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It is a challenge to achieve the high power/energy densities of portable and flexible energy storage devices. Here, an advanced lithium-ion capacitor (LIC) and sodium-ion capacitor (SIC) were constructed using activated carbon cathodes and self-supported N/P dual-doped carbon nanofiber film (NP-CNF) anodes. The NP-CNF was fabricated through electrospinning assisted by preoxidization and carbonization. The dual-N source (melamine polyphosphate and PAN) and P source (melamine polyphosphate) doping...
8 CitationsSource
#1Cheng Yang (Huada: Beijing University of Chemical Technology)H-Index: 5
#2Jinle Lan (Huada: Beijing University of Chemical Technology)H-Index: 27
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
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Abstract A novel three-dimensional hierarchical ternary aerogel of TiO2 nanoparticles@porous carbon nanofibers-reduced graphene oxide (TiO2@PCNF-GA) was designed as an advanced anode for lithium-ion capacitors. TiO2@PCNFs were first fabricated by electrospinning assisted by carbonization and a post-etching process, and then assembled into reduced graphene oxide aerogels (GAs) to obtain the TiO2@PCNF-GAs. The uniform distribution of the ultrafine TiO2 nanoparticles in the PCNFs inhibits the aggre...
13 CitationsSource
#1Cheng Yang (Huada: Beijing University of Chemical Technology)H-Index: 5
#2Jinle Lan (Huada: Beijing University of Chemical Technology)H-Index: 27
Last. Xiaoping Yang (Huada: Beijing University of Chemical Technology)H-Index: 44
view all 6 authors...
A novel Li-ion capacitor based on an activated carbon cathode and a well-dispersed ultrafine TiO2 nanoparticles embedded in mesoporous carbon nanofibers (TiO2@PCNFs) anode was reported. A series of TiO2@PCNFs anode materials were prepared via a scalable electrospinning method followed by carbonization and a postetching method. The size of TiO2 nanoparticles and the mesoporous structure of the TiO2@PCNFs were tuned by varying amounts of tetraethyl orthosilicate (TEOS) to increase the energy densi...
32 CitationsSource
#1Chen-Xi Gui (Huada: Beijing University of Chemical Technology)H-Index: 12
#2Shu-Meng Hao (Huada: Beijing University of Chemical Technology)H-Index: 12
Last. Zhong-Zhen Yu (Huada: Beijing University of Chemical Technology)H-Index: 66
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Layered nickel silicate provides massive interlayer space similar to graphite for the insertion and extraction of lithium ions and sodium ions; however, the poor electrical conductivity limits its electrochemical applications in energy storage devices. Herein, carbon nanotube@layered nickel silicate (CNT@NiSiOx) coaxial nanocables with flexible nickel silicate nanosheets grown on conductive carbon nanotubes (CNTs) are synthesized by a mild hydrothermal method. CNTs serve as conductive cables to ...
35 CitationsSource
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