Nonaqueous Lithium-Ion Capacitors with High Energy Densities using Trigol-Reduced Graphene Oxide Nanosheets as Cathode-Active Material

A high energy and high power density Li-ion capacitor based on BiVO4 nanorods (left) and partially reduced graphene oxide nanosheets (PRGO, on right) for EV applications.

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Organic multi-electron redox couple-induced functionalization for enabling ultrahigh rate and cycling performances of supercapacitors

Journal of Materials Chemistry A ◽

10.1039/c7ta07389e ◽

2017 ◽

Vol 5 (48) ◽

pp. 25420-25430 ◽

Cited By ~ 26

Author(s):

Ning An ◽

Zhongai Hu ◽

Hongying Wu ◽

Yuying Yang ◽

Ziqiang Lei ◽

...

Keyword(s):

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Active Material ◽

Redox Couple ◽

Graphene Oxide Nanosheets ◽

Reduced Graphene ◽

Electrochemically Active ◽

One Step ◽

Cycling Performances ◽

Redox Centers

Danthron (DT) with multi-electron redox centers as a novel organic electrochemically active material for supercapacitors has been decorated on reduced graphene oxide nanosheets (RGNs) via a facile one-step reflux method.

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One-pot solvothermal synthesis of graphene wrapped rice-like ferrous carbonate nanoparticles as anode materials for high energy lithium-ion batteries

Nanoscale ◽

10.1039/c4nr05671j ◽

2015 ◽

Vol 7 (1) ◽

pp. 232-239 ◽

Cited By ~ 38

Author(s):

Fan Zhang ◽

Ruihan Zhang ◽

Jinkui Feng ◽

Lijie Ci ◽

Shenglin Xiong ◽

...

Keyword(s):

Graphene Oxide ◽

Lithium Ion Batteries ◽

Reduced Graphene Oxide ◽

Solvothermal Synthesis ◽

Anode Materials ◽

Lithium Ion ◽

High Energy ◽

One Pot ◽

Reduced Graphene ◽

Ferrous Carbonate

Well dispersed rice-like FeCO3 nanoparticles were produced and combined with reduced graphene oxide (RGO) via a one-pot solvothermal route.

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Silicon Carbon Nanoparticles Coated with Reduced Graphene Oxide with High Specific Capacity and High-Rate Performance as Anode Material for Lithium-Ion Battery

NANO ◽

10.1142/s1793292020501490 ◽

2020 ◽

Vol 15 (11) ◽

pp. 2050149

Author(s):

Xiangyu Shi ◽

Jifei Liu ◽

Jianfeng Dai ◽

Yufeng Qi

Keyword(s):

Graphene Oxide ◽

Electrochemical Performance ◽

Reduced Graphene Oxide ◽

Carbon Nanoparticles ◽

Active Material ◽

Specific Capacity ◽

Lithium Ion ◽

High Rate ◽

Silicon Carbon ◽

Reduced Graphene

Silicon carbon nanoparticles (SCNPs) coated with reduced graphene oxide (rGO) were fabricated by a hydrothermal method and subsequently by a simple heat treatment process. SCNPs/rGO exhibit excellent electrochemical performance which not only attributes the rGO layer to inhibit the volumetric expansion of silicon and reduce the impedance between the active material and lithium ions during the electrochemical process, but also improves the electrical conductivity of SCNPs/rGO. The as-prepared compound was cyclically tested at a current density of 150[Formula: see text]mA/g, with the first charge and discharge capacities of 3152.2[Formula: see text]mAh/g and 3342.7[Formula: see text]mAh/g, respectively. Moreover, the electrochemical performance of SCNPs/rGO was better than SCNPs. The [Formula: see text] values for fresh battery, after 1 cycle and 100 cycles, are 120.9[Formula: see text][Formula: see text], 120.5[Formula: see text][Formula: see text] and 104[Formula: see text][Formula: see text]. Thus, compared with SCNPs, SCNPs/rGO exhibited lower overall impedance values. These results indicate that the addition of graphene layer significantly improved the electrochemical performance of SCNPs electrodes and reduced the internal resistance of the battery.

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Bi2O2CO3 microspheres anchored on reduced graphene oxide nanosheets as electrode material for lithium ion batteries and supercapacitors

Materials Letters ◽

10.1016/j.matlet.2019.01.027 ◽

2019 ◽

Vol 240 ◽

pp. 299-302 ◽

Cited By ~ 2

Author(s):

Weiwei Kang ◽

Baoping Lin ◽

Zhendong Jiang ◽

Zeping Liu ◽

Lanlan Feng ◽

...

Keyword(s):

Graphene Oxide ◽

Lithium Ion Batteries ◽

Reduced Graphene Oxide ◽

Electrode Material ◽

Lithium Ion ◽

Graphene Oxide Nanosheets ◽

Reduced Graphene

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Tiny Basic Nickel Carbonate Arrays/Reduced Graphene Oxide Composite for High-Efficiency Supercapacitor Application

NANO ◽

10.1142/s1793292019500449 ◽

2019 ◽

Vol 14 (04) ◽

pp. 1950044 ◽

Cited By ~ 1

Author(s):

Zhengmin Yu ◽

Xiaoli Su ◽

Denghu Wei ◽

Shu-Juan Yao ◽

Huiyan Ma ◽

...

Keyword(s):

Graphene Oxide ◽

Reduced Graphene Oxide ◽

High Efficiency ◽

Active Material ◽

3D Structure ◽

Graphene Oxide Nanosheets ◽

Supercapacitor Application ◽

Nickel Carbonate ◽

Reduced Graphene ◽

Excellent Stability

3D structure composite made of tiny basic nickel carbonate arrays on the surface of reduced graphene oxide nanosheets (G-NiCH) are prepared by the hydrothermal method. The specific surface area of the G-NiCH composites is twice that of single basic nickel carbonate, which is due to the tiny basic nickel carbonate arrays structure wherein each individual nanoneedle is about 20[Formula: see text]nm in length and 2[Formula: see text]nm in width. The G-NiCH electrodes display high-efficiency electrochemical performance with good specific capacitance (1230[Formula: see text]F[Formula: see text]g[Formula: see text]) and excellent stability (100% capacitance retention after 2000 cycles). This is attributed to the synergistic effect that reduced graphene oxide offer fast electron transmission path and basic nickel carbonate act as high effective active material.

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