3D superelastic graphene aerogel-nanosheet hybrid hierarchical nanostructures as high-performance supercapacitor electrodes

Zhang, Qiangqiang; Wang, Yu; Zhang, Baoqiang; Zhao, Keren; He, Pingge

doi:10.1016/j.carbon.2017.11.037

Cited by 98 publications

(35 citation statements)

References 42 publications

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“…Micropores enable charge accommodation, mesopores offer electrolyte ion transport, and macropores store electrolyte ions. Zhang et al . synthesized 3D GA‐nanosheet (NS) hybrid hierarchical nanostructures as high‐performance supercapacitor electrodes.…”

Section: Part 9 Graphene Aerogels For Energy Storagementioning

confidence: 99%

“…(a) Photos of the electrode; (b) Cyclic voltammetry diagrams at scan rates from 5 to 100 mV/s; (c) Galvanostatic charge/discharge curves for current densities from 1 to 12 A/g; (d) Specific capacitance and capacitance retention on current density; (e) Nyquist plot from 0.1 Hz to 1 MHz for the electrode. Inset: An equivalent circuit, and (f) Galvanostatic charge/discharge cyclic stability for current density equal to 15 A/g over 10000 cycles, while the corresponding coulombic efficiencies are also shown . Reproduced with permission from Elsevier.…”

Section: Part 9 Graphene Aerogels For Energy Storagementioning

confidence: 99%

“…Micropores enable charge accommodation, mesopores offer electrolyte ion transport, and macropores store electrolyte ions. Zhang et al [86] synthesized 3D GA-nanosheet (NS) hybrid hierarchical nanostructures as high-performance supercapacitor electrodes. They used a modified hydrothermal method, while these examined electrodes present high specific capacitance of 245 F/g and areal capacitance of 1.1 F/cm 2 , and cyclic stability with a capacitance retention equal to 92% over 10000 cycles, as shown in Figure 13.…”

Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

“…Inset: An equivalent circuit, and (f) Galvanostatic charge/discharge cyclic stability for current density equal to 15 A/g over 10000 cycles, while the corresponding coulombic efficiencies are also shown. [86] Reproduced with permission from Elsevier.…”

Section: Concluding Remarks and Prospectsmentioning

confidence: 99%

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2020 Roadmap on Carbon Materials for Energy Storage and Conversion

Liao

et al. 2020

Chemistry An Asian Journal

161

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Carbon is a simple, stable and popular element with many allotropes. The carbon family members include carbon dots, carbon nanotubes, carbon fibers, graphene, graphite, graphdiyne and hard carbon, etc. They can be divided into different dimensions, and their structures can be open and porous. Moreover, it is very interesting to dope them with other elements (metal or non‐metal) or hybridize them with other materials to form composites. The elemental and structural characteristics offer us to explore their applications in energy, environment, bioscience, medicine, electronics and others. Among them, energy storage and conversion are extremely attractive, as advances in this area may improve our life quality and environment. Some energy devices will be included herein, such as lithium‐ion batteries, lithium sulfur batteries, sodium‐ion batteries, potassium‐ion batteries, dual ion batteries, electrochemical capacitors, and others. Additionally, carbon‐based electrocatalysts are also studied in hydrogen evolution reaction and carbon dioxide reduction reaction. However, there are still many challenges in the design and preparation of electrode and electrocatalytic materials. The research related to carbon materials for energy storage and conversion is extremely active, and this has motivated us to contribute with a roadmap on ‘Carbon Materials in Energy Storage and Conversion’.

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Section: Part 9 Graphene Aerogels For Energy Storagementioning

confidence: 99%

Section: Part 9 Graphene Aerogels For Energy Storagementioning

confidence: 99%

Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

Section: Concluding Remarks and Prospectsmentioning

confidence: 99%

See 2 more Smart Citations

2020 Roadmap on Carbon Materials for Energy Storage and Conversion

Liao

et al. 2020

Chemistry An Asian Journal

161

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“…Методы получения гидрогелей на основе оксида графита можно разделить на две основные группы. В первой применяют химическое восстановление при помощи аскорбиновой кислоты, иодидов и иодоводородной кислоты, гидразина, сульфидов и сульфитов щелочных металлов, во второй -гидротермальный метод, проводимый в автоклаве при температурах 140-150°С [8][9][10][11][12][13][14][15][16][17]. Для получения аэрогелей предложено использовать метод криохимической сушки.…”

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3d-Структуры На Основе Восстановленного Оксида Графита И Наночастиц Золота И Их Сорбционные Свойства

Eremina¹,

Dobrovol'skii²,

Lemesh³

et al. 2020

Rossijskie nanotehnologii

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Описано получение гидро- и аэрогелей на основе восстановленного оксида графита и наночастиц золота, полученных методом Туркевича. Наночастицы золота, согласно данным просвечивающей электронной микроскопии, имеют сферическую форму и средний размер 16–18 нм. Для характеризации полученных 3D-структур использована сорбция растворов красителя метиленового голубого. Проведено сравнение сорбционных свойств гидро- и аэрогелей, показано, что аэрогель сорбирует более эффективно (>80%), чем композит на основе гидрогеля (~50%). Сформированная пористая 3D-структура аэрогеля эффективно сорбирует молекулы красителя, а наночастицы золота, входящие в состав аэрогеля, способствуют его разрушению под воздействием видимого света. Сорбция красителя аэрогелем чистого оксида графита проходит с наибольшей эффективностью при комнатной температуре, в нейтральной среде и без использования дополнительных восстановителей. Введение в аэрогели наночастиц золота позволяет увеличить эффективность сорбции на 15%.

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Graphene‐Based Advanced Nanostructures

Allahbakhsh

2019

Handbook of Graphene

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3D superelastic graphene aerogel-nanosheet hybrid hierarchical nanostructures as high-performance supercapacitor electrodes

Cited by 98 publications

References 42 publications

2020 Roadmap on Carbon Materials for Energy Storage and Conversion

2020 Roadmap on Carbon Materials for Energy Storage and Conversion

3d-Структуры На Основе Восстановленного Оксида Графита И Наночастиц Золота И Их Сорбционные Свойства

Graphene‐Based Advanced Nanostructures

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