One-Pot Rational Deposition of Coaxial Double-Layer MnO2/Ni(OH)2 Nanosheets on Carbon Nanofibers for High-Performance Supercapacitors

Nie, Guangdi; Zhang, Zhenyuan; Liu, Yingqi; Wang, Jian; Fu, Yong Qing; Yin, Haiqi; Chen, Juan; Zhao, Lin; Pan, Zhenghui

doi:10.1007/s42765-022-00161-8

Cited by 35 publications

(5 citation statements)

References 46 publications

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“…In NiCoS/NiCo-OH, NiCoS, and NiCo-OH, both the XPS spectra of Ni 2p and Co 2p deliver two spin–orbit doublets and two satellites (marked as “Sat.″). The separation peaks at 856.10 and 873.70 eV for NiCoS/NiCo-OH can be ascribed to Ni 2p 3/2 and Ni 2p 1/2 (Figure a). , The separation peaks at 781.34 and 797.13 eV for NiCoS/NiCo-OH are attributed to Co 2p 3/2 and Co 2p 1/2 , respectively (Figure b). , The results indicate that Co and Ni in NiCoS/NiCo-OH are in the form of Co 2+ and Ni 2+ , respectively . Notably, the main peaks of Ni 2p 3/2 and Co 2p 3/2 for NiCoS/NiCo-OH are shifted by 0.27 and 0.31 eV to higher binding energies compared to that of NiCo-OH.…”

Section: Resultsmentioning

confidence: 84%

“…The TEM characterization result (Figure 2e) shows that there is intimate contact between NiCoS and NiCo-OH nanosheets, and the NiCo-OH nanosheets exhibit abundant mesopores at a diameter of 5.88 nm (Figure 2f), which is similar to the average pore size (7.6 nm) in the nitrogen 3a). 34,35 The separation peaks at 781.34 and 797.13 eV for NiCoS/NiCo-OH are attributed to Co 2p 3/2 and Co 2p 1/2 , respectively (Figure 3b). 36,37 The results indicate that Co and Ni in NiCoS/NiCo-OH are in the form of Co 2+ and Ni 2+ , respectively.…”

Section: Resultsmentioning

confidence: 99%

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NiCo-OH Nanosheets Coated with NiCoS Nanosheets for Supercapacitors and Alkaline Zinc Batteries

Huang,

Yao,

et al. 2024

ACS Appl. Nano Mater.

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Herein, a reverse bias heterojunction NiCoS/NiCo-OH with mesopores as the positive electrode was constructed by interface engineering. During the process of charging, the application of a positive bias potential by the external circuit to the reverse bias heterojunction NiCoS/NiCo-OH enhances the accumulation of charges within the NiCoS nanosheets. Under the modulation of the built-in electric field at the interface, the mesoporous interface of NiCo-OH acts as a receiver, collecting charges from NiCoS nanosheets and forming a channel leading to efficient ion diffusion and charge transfer. The specific capacity of the NiCoS/NiCo-OH electrode is up to 406.5 mA h g −1 at 1 A g −1 . It demonstrates ultrahigh rate performance, reaching 81.9% (50 A g −1 ) and 77.4% (100 A g −1 ). The hybrid supercapacitor NiCoS/ NiCo-OH//FNG shows a high energy density of 51.3 W h kg −1 at 1650 W kg −1 . Moreover, the capacity of the Zn||NiCoS/NiCo-OH battery reaches 419.1 mA h g −1 cathode at 1 A g −1 , and it can still maintain 73% (306.3 mA h g −1 cathode ) at 100 A g −1 .

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Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%

NiCo-OH Nanosheets Coated with NiCoS Nanosheets for Supercapacitors and Alkaline Zinc Batteries

Huang,

Yao,

et al. 2024

ACS Appl. Nano Mater.

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“…The remarkable combination of large specific surface area and high electrical conductivity in LCFs makes them highly promising for use as anodes in lithium-ion batteries. 56 In our study, three typical LCFs (LCF-1100 with moderate specific surface area and graphitization, LCF-1500 with high specific surface area and LCF-2800 with high graphitization) were used as the anode active materials for the preparation of lithium-ion batteries respectively. Fig.…”

Section: Preparation and Performance Of Lcf-based Lithium-ion Battery...mentioning

confidence: 99%

Highly conductive and porous lignin-derived carbon fibers

Jia,

Yu,

Wang

et al. 2023

Mater. Horiz.

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“…With the advantages of ultrahigh power density, excellent cycle stability, and good rate performance, supercapacitors have great potential to be combined with TENG as the energy storage part of self-charging devices. − A lot of research has been carried out on self-charging energy storage devices based on TENG and SC. Ren proposed the flexible and convenient single-electrode TENG and supercapacitor yarn-based self-charging power fabrics, which utilize energy derived from biomechanical motion to continuously power portable electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Washable All-in-One Self-Charging Power Unit Based on a Triboelectric Nanogenerator and Supercapacitor for Smart Textiles

Huang

Wang

et al. 2023

Langmuir

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Lightweight, portability, and sustainability have become key factors of the power source for the rapid development of multifunctional wearable electronic devices. In this work, a washable, wearable, and durable self-charging system for human motion energy harvesting and storage based on asymmetric supercapacitors (ASCs) and triboelectric nanogenerators (TENGs) is investigated. The all-solid-state flexible ASC is composed of a cobalt–nickel layered double hydroxide grown on a carbon cloth (CoNi-LDH@CC) as the positive electrode and activated carbon cloth (ACC) as the negative electrode and exhibits the performance of small size, high flexibility, and superior stability. The device was able to provide a capacity of 345 mF cm–2 and a cycle retention rate of 83% after 5000 cycles, which shows great potential as an energy storage unit. Additionally, flexible silicon rubber-coated carbon cloth (CC) is waterproof and soft and can be used as a TENG textile to gain energy for stable charging of an ASC, which presents an open-circuit voltage and short-circuit current of 280 V and 4 μA, respectively. The ASC and TENG can be assembled to continuously collect and store energy, which provides an all-in-one self-charging system qualified with washable and durable for potential applications in wearable electronics.

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One-Pot Rational Deposition of Coaxial Double-Layer MnO2/Ni(OH)2 Nanosheets on Carbon Nanofibers for High-Performance Supercapacitors

Cited by 35 publications

References 46 publications

NiCo-OH Nanosheets Coated with NiCoS Nanosheets for Supercapacitors and Alkaline Zinc Batteries

NiCo-OH Nanosheets Coated with NiCoS Nanosheets for Supercapacitors and Alkaline Zinc Batteries

Highly conductive and porous lignin-derived carbon fibers

Washable All-in-One Self-Charging Power Unit Based on a Triboelectric Nanogenerator and Supercapacitor for Smart Textiles

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