Rational construction of hierarchical porous carbon with ultrahigh specific surface area and rich heteroatoms toward high-performance supercapacitors

Liu, Dong; Guo, Tong; Xu, Dekun; Xu, Guangyu; Wang, Zhoulei; Fan, Baomin; Ding, Yigang

doi:10.1016/j.vacuum.2023.112374

Cited by 9 publications

(4 citation statements)

References 49 publications

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“…The S 2p spectrum has two peaks at 163.1 and 162.0 eV for S 2p 1/2 and S 2p 3/2 , respectively, and a weak satellite peak at 169.6 eV (Figure c) . Furthermore, the C 1s spectrum is deconvoluted into four peaks for C–S (284.0 eV), C–C (284.8 eV), C–N (285.8 eV), and OC–O (287.0 eV) (Figure d). , …”

Section: Resultsmentioning

confidence: 95%

“…20 Furthermore, the C 1s spectrum is deconvoluted into four peaks for C−S (284.0 eV), C−C (284.8 eV), C−N (285.8 eV), and O�C−O (287.0 eV) (Figure 5d). 23,24 Benefiting from the polycrystalline characteristic and unique microstructures of the electrode materials, we anticipate that they will exhibit exceptional electrochemical performance. The electrode materials are assessed in a traditional three-electrode system.…”

Section: Resultsmentioning

confidence: 99%

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Nickel–Cobalt Sulfide Nanosheets Anchored on Porous Carbon for Energy Storage and Small-Molecule Detection

Guo,

Cao,

Zheng

et al. 2023

ACS Appl. Nano Mater.

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Transition metal sulfides (TMSs) are considered to be highly promising electrode materials for supercapacitors. Optimizing the structure of the electrode materials to expose more active sites is a crucial strategy for boosting the electrochemical performance. Herein, we developed carbon/ metal sulfide composite electrode materials by anchoring nickel−cobalt bimetallic sulfide nanosheets (NCS) on chitosan-derived heteroatom-doped hierarchical porous carbon (CPC). The composite materials exhibited a uniform distribution and significantly increased active sites, which led to a substantial enhancement of the electrochemical properties. The optimal sample NCS/CPC-3 exhibited a brilliant capacitive performance and great cycling stability. Also, the assembled asymmetric supercapacitor presented a robust energy output of 37.1 W h kg −1 at 800.0 W kg −1 . In addition, NCS/CPC-3 also demonstrated potential in the field of smallmolecule detection. Our findings supply a unique perspective on effectively boosting the electrochemical properties of TMS-based electrode materials.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Nickel–Cobalt Sulfide Nanosheets Anchored on Porous Carbon for Energy Storage and Small-Molecule Detection

Guo,

Cao,

Zheng

et al. 2023

ACS Appl. Nano Mater.

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“…Cheap and renewable chitin is the second most abundant biopolymer in nature derived from seafood waste. The features such as non‐toxicity and high nitrogen content make the chitin an ideal carbon electrode precursor in the sustainable electrochemical energy storage systems [69–70,77‐78,83] . In 2018, Hao et al.…”

Section: Animal‐derived Carbon Materials With Heteroatom Dopingmentioning

confidence: 99%

“…The features such as non-toxicity and high nitrogen content make the chitin an ideal carbon electrode precursor in the sustainable electrochemical energy storage systems. [69][70][77][78]83] In 2018, Hao et al prepared a series of N-doped amorphous carbon nanofibrous (NACF) from N-rich chitin containing chitosan using precarbonation and high-temperature carbonation (Figure 4a). [80] The N atoms within the amide group of the chitin would gradually converted into nitrogen-containing functional groups in the carbonation process and doped into the carbon material in the form of pyridine N and pyrrole N. The temperature of carbonization had an obviously influence on the ratio of N-5, N-6, N-Q (Figure 4b).…”

Section: Single-element Dopingmentioning

confidence: 99%

Biomass‐Derived Carbon Materials for Electrochemical Energy Storage

Bai,

Zhang,

Rong

et al. 2024

Chemistry A European J

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The environmental impact from the waste disposal has been widely concerned around the world. The conversion of wastes to useful resources is important for the sustainable society. As a typical family of wastes, biomass materials basically composed of collagen, protein and lignin, are considered as useful resources for recycle and reuse. In recent years, the development of carbon material derived from biomasses, such as plants, crops, animals and their application in electrochemical energy storage have attracted extensive attention. Through the selection of the appropriate biomass, the optimization of the activation method and the control of the pyrolysis temperatures, carbon materials with desired features, such as high‐specific surface area, variable porous framework, and controllable heteroatom‐doping have been fabricated. Herein, this review summarized the preparation methods, morphologies, heteroatoms doping in the plant/animal‐derived carbonaceous materials, and their application as electrode materials for secondary batteries and supercapacitors, and as electrode support for lithium‐sulfur batteries. The challenges and prospects for the controllable synthesis and large‐scale application of biomass‐derived carbonaceous materials have also been outlooked.

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