Regulating the specific surface area and porous structure of carbon for high performance supercapacitors

Yan, Lihua; Liu, Anjie; Ma, Rui; Guo, Chang; Ding, Xuehe; Feng, Puya; Jia, Dianzeng; Ai, Lili; Guo, Nannan; Wang, Luxiang

doi:10.1016/j.apsusc.2022.156267

Cited by 42 publications

(20 citation statements)

References 55 publications

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“…The mesopore volume and specific surface area were determined to be 0.24 cm 3 g −1 and 1510 m 2 g −1, respectively, resulting in a specific capacitance of 345 F g −1 at 1 A g −1 , exceptional rate performance with a 69 % retention rate at 50 A g −1 using 6 M KOH, 1 M Na 2 SO 4 , and an ionic liquid as an electrolyte. This work expands the possibilities for co‐pyrolysis of various precursors to develop porous carbons and highlights the necessity of balancing SSA and porous structure in supercapacitors′ capacitance and rate performance [116] . Hydrothermal treatment of fungus, followed by carbonization of the material, was the method that Conglai et al .…”

Section: Applications: Architecture Design and Performance Evaluationmentioning

confidence: 93%

“…[140] In another work, Zhou and his colleagues successfully synthesized a hierarchically permeable carbon material with a 3D architecture using a sustainable approach involving in situ templating, KOH activation, and the addition of urea from pectin. [116] The resulting material showed a specific capaci-tance of 338 F g À 1 at 1 Ag À 1 , with a stability of 83 % at 50 A g À 1 using 6 M KOH and 1 M Na 2 SO 4 electrolyte. This response is due to its high SSA, rich heteroatom ratios, appropriate micropore/mesopore size, and unique 3D carbon architecture.…”

Section: R E V I E W T H E C H E M I C a L R E C O R Dmentioning

confidence: 95%

“…This work expands the possibilities for copyrolysis of various precursors to develop porous carbons and highlights the necessity of balancing SSA and porous structure in supercapacitors' capacitance and rate performance. [116] Hydrothermal treatment of fungus, followed by carbonization of the material, was the method that Conglai et al used to fabricate highly porous and layered carbon nanosheet structures. [124] This material possesses a high-power density, significantly less pore size organization, a large specific surface area of 1103 m 2 g À 1 , and an interlinked and hierarchical porous framework.…”

Section: Porous Carbonmentioning

confidence: 99%

“…Additionally, it has a specific capacitance value of 312 F g −1 at 0.5 A g −1 in 6M KOH [140] . In another work, Zhou and his colleagues successfully synthesized a hierarchically permeable carbon material with a 3D architecture using a sustainable approach involving in situ templating, KOH activation, and the addition of urea from pectin [116] . The resulting material showed a specific capacitance of 338 F g −1 at 1 Ag −1 , with a stability of 83 % at 50 A g −1 using 6 M KOH and 1 M Na 2 SO 4 electrolyte.…”

Section: Applications: Architecture Design and Performance Evaluationmentioning

confidence: 99%

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Recent Advances on Nitrogen‐Doped Porous Carbons Towards Electrochemical Supercapacitor Applications

Komal Zafar,

Zainab,

Masood

et al. 2023

The Chemical Record

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Due to ever‐increasing global energy demands and dwindling resources, there is a growing need to develop materials that can fulfil the World's pressing energy requirements. Electrochemical energy storage devices have gained significant interest due to their exceptional storage properties, where the electrode material is a crucial determinant of device performance. Hence, it is essential to develop 3‐D hierarchical materials at low cost with precisely controlled porosity and composition to achieve high energy storage capabilities. After presenting the brief updates on porous carbons (PCs), then this review will focus on the nitrogen (N) doped porous carbon materials (NPC) for electrochemical supercapacitors as the NPCs play a vital role in supercapacitor applications in the field of energy storage. Therefore, this review highlights recent advances in NPCs, including developments in the synthesis of NPCs that have created new methods for controlling their morphology, composition, and pore structure, which can significantly enhance their electrochemical performance. The investigated N‐doped materials a wide range of specific surface areas, ranging from 181.5 to 3709 m2 g−1, signifies a substantial increase in the available electrochemically active surface area, which is crucial for efficient energy storage. Moreover, these materials display notable specific capacitance values, ranging from 58.7 to 754.4 F g−1, highlighting their remarkable capability to effectively store electrical energy. The outstanding electrochemical performance of these materials is attributed to the synergy between heteroatoms, particularly N, and the carbon framework in N‐doped porous carbons. This synergy brings about several beneficial effects including, enhanced pseudo‐capacitance, improved electrical conductivity, and increased electrochemically active surface area. As a result, these materials emerge as promising candidates for high‐performance supercapacitor electrodes. The challenges and outlook in NPCs for supercapacitor applications are also presented. Overall, this review will provide valuable insights for researchers in electrochemical energy storage and offers a basis for fabricating highly effective and feasible supercapacitor electrodes.

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Section: Applications: Architecture Design and Performance Evaluationmentioning

confidence: 93%

Section: R E V I E W T H E C H E M I C a L R E C O R Dmentioning

confidence: 95%

Section: Porous Carbonmentioning

confidence: 99%

Section: Applications: Architecture Design and Performance Evaluationmentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances on Nitrogen‐Doped Porous Carbons Towards Electrochemical Supercapacitor Applications

Komal Zafar,

Zainab,

Masood

et al. 2023

The Chemical Record

View full text Add to dashboard Cite

show abstract

“…Unfortunately, the low carbon yield, poor electrical conductivity, and high cost of these carbon precursors greatly limit the practical application in supercapacitors. Coal is considered to be a hopeful material candidate because of its high carbon content, convenience of availability, and rich source. − In fact, from the microstructure aspect of coals, there are strong interactions between the ordered aromatic hydrocarbons and the unordered alkyl functional groups, which greatly limits the structural tunability of coal-based PCs. , Many researchers utilize the mixed acids to break the strong interaction between coal molecules for preparing oxidized coal (OC). − However, there has been little research for the preparation of coal-based HPCs by the preoxidation treatment. Thus, the development of a simple method to prepare coal-based HPCs with a large SSA and abundant mesopores is highly desirable for high performance supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

Dual-Salt-Induced Hierarchical Porous Structure in a Carbon Sheet for High Performance Supercapacitors

Feng

Guo

et al. 2023

Langmuir

Self Cite

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Porous carbon, one of the characteristic materials for electrochemical energy storage devices, has been paid wide-ranging attention. However, balancing the reconcilable mesopore volume with a large specific surface area (SSA) was still a challenge. Herein, a dual-salt-induced activation strategy was developed to obtain a porous carbon sheet with ultrahigh SSA (3082 m 2 g −1 ), desirable mesopore volume (0.66 cm 3 g −1 ), nanosheet morphology, and high surface O (7.87%) and S (4.0%) content. Hence, as a supercapacitor electrode, the optimal sample possessed a high specific capacitance (351 F g −1 at 1 A g −1 ) and excellent rate performance (holding capacitance up to 72.2% at 50 A g −1 ). Furthermore, the assembled zinc-ion hybrid supercapacitor also exhibited superior reversible capacity (142.7 mAh g −1 at 0.2 A g −1 ) and highly stable cycling (71.2 mAh g −1 at 5 A g −1 after 10,000 cycles with retention of 98.9%). This work was delivered a new possibility for the development of coal resources for the preparation of high performance porous carbon materials.

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Large‐Scale Production and Integrated Application of Micro‐Supercapacitors

Xie,

Zhang,

et al. 2024

Chemistry A European J

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Micro‐supercapacitors, emerging as promising micro‐energy storage devices, have attracted significant attention due to their unique features. This comprehensive review focuses on two key aspects: the scalable fabrication of MSCs and their diverse applications. The review begins by elucidating the energy storage mechanisms and guiding principles for designing high‐performance devices. It subsequently explores recent advancements in scalable fabrication techniques for electrode materials and micro‐nano fabrication processes for micro‐devices. The discussion encompasses critical application domains, including multifunctional MSCs, energy storage integration, integrated power generation, and integrated applications. Despite notable progress, there are still some challenges such as large‐scale production of electrode material, well‐controlled fabrication technology, and scalable integrated manufacture. The summary concludes by emphasizing the need for future research to enhance micro‐supercapacitor performance, reduce production costs, achieve large‐scale production, and explore synergies with other energy storage technologies. This collective effort aims to propel MSCs from laboratory innovation to market viability, providing robust energy storage solutions for MEMS and portable electronics.

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Regulating the specific surface area and porous structure of carbon for high performance supercapacitors

Cited by 42 publications

References 55 publications

Recent Advances on Nitrogen‐Doped Porous Carbons Towards Electrochemical Supercapacitor Applications

Recent Advances on Nitrogen‐Doped Porous Carbons Towards Electrochemical Supercapacitor Applications

Dual-Salt-Induced Hierarchical Porous Structure in a Carbon Sheet for High Performance Supercapacitors

Large‐Scale Production and Integrated Application of Micro‐Supercapacitors

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