Fabrication of manganese dioxide nanoplates anchoring on biomass-derived cross-linked carbon nanosheets for high-performance asymmetric supercapacitors

Li, Yiju; Yu, Neng; Yan, Peng; Li, Yuguang; Zhou, Xuemei; Chen, Shuangling; Wang, Xianchao; Wei, Tong; Fan, Zhuangjun

doi:10.1016/j.jpowsour.2015.09.077

Cited by 132 publications

(48 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[29] Negativee lectrode materials commonly used in ASCs include carbon-based materials (AC, CNTs, and graphene), [15] metal oxides( Fe 2 O 3, MoO 3, WO 3, MnO 2 , [55] In 2 O 3 , [56] and Bi 2 O 3 ), [57] and metal nitrides( TiN, VN, Mo 2 N, and WON). Different combinations of positive and negative electrodes have been studied in the presence of different electrolytes to analyze their performance.…”

Section: Configurationmentioning

confidence: 99%

“…[57] Initially,s eeds of willow catkin were removed, transferred into as olution of KOH, and heated at 100 8C to remove residual water.T he resultant mixture was furtherh eatedu nder an argon atmosphere at 400 8C Step-by-step fabrication of an ASC device using orange-peel-derived AC as a negative electrode (reproduced with permission from Ref. [57] Initially,s eeds of willow catkin were removed, transferred into as olution of KOH, and heated at 100 8C to remove residual water.T he resultant mixture was furtherh eatedu nder an argon atmosphere at 400 8C Step-by-step fabrication of an ASC device using orange-peel-derived AC as a negative electrode (reproduced with permission from Ref.…”

Section: Willow Catkinmentioning

confidence: 99%

See 1 more Smart Citation

Biomass‐Derived Carbon: A Value‐Added Journey Towards Constructing High‐Energy Supercapacitors in an Asymmetric Fashion

et al. 2019

View full text Add to dashboard Cite

show abstract

Section: Configurationmentioning

confidence: 99%

Section: Willow Catkinmentioning

confidence: 99%

Biomass‐Derived Carbon: A Value‐Added Journey Towards Constructing High‐Energy Supercapacitors in an Asymmetric Fashion

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The energy density of the SSAS is estimated to be 16.8 Wh kg −1 at a power density of 224.6 W kg −1 . Even at the maximum power density of 8986.9 W kg −1 , an energy density of 10.2 Wh kg −1 is remained, which is higher than those MnO 2 ‐based asymmetric supercapacitors in the literature (Figure e) . Moreover, the cycling stability performance of the SSAS was displayed in Figure F.…”

Section: Resultsmentioning

confidence: 80%

Holey graphene/MnO ₂ nanosheets with open ion channels for high‐performance solid‐state asymmetric supercapacitors

Gao

Shu

et al. 2020

Int J Energy Res

View full text Add to dashboard Cite

Holey graphene/MnO2 (HG/MnO2) composites with open ion channels are synthesized by an electrostatic self‐assembly method. The HG with rich in‐plane nanopores is prepared via a mild etching reaction first, followed by modified with poly‐diallyldimethylammoniumchloride (PDDA) to transfer the surface charge of HG nanosheets from negative to positive, which are eventually assembled on the negatively charged MnO2 nanosheets via electrostatic attraction. As a result, the HG allows ions to pass through the graphene sheet, improving the ion transport channels. Besides, the electrostatic self‐assembly between HG and MnO2 enables the composite a high conductivity, providing effective electron transport pathways. The HG and MnO2 sheets are observed to be tightly bounded by the transmission electron microscope (TEM), and the HG content in the composites is determined to be 9.6% to 20% by the thermogravimetric (TG) test. The HG/MnO2‐2 electrode with the HG content of around 14.8% displays the large specific capacitance of 219.3 F g−1 at 0.5 A g−1 and the high rate capacity of 134.7 F g−1 at 10 A g−1. Furthermore, the as‐prepared solid‐state asymmetric supercapacitors (SSAS) achieve a wide stable operating voltage of 1.8 V, a high energy density of 16.8 Wh kg−1 at the power density of 224.6 W kg−1, and low capacitance degradation of only 6.3% after 5000 cycles.

show abstract

“…Selecting suitable biomaterial precursors and optimizing the corresponding synthesis conditions are crucial to achieve these purposes. For instance, some efforts to synthesize combinations of MnO 2 and various types of porous carbon derived from different biomaterials (such as willow catkin, [149] human hair, [150] kenaf stem, [151] and fungal conidium [152] ) have been conducted so far (as shown in ) and total pore volume (1.02 cm 3 g −1 ). [150] The high S BET can offer sufficient electrode/electrolyte interface for ion and charge accumulation, and the presence of high pore volumes in the nanocomposites can contribute to the rapid diffusion of ions.…”

Section: Biochar Based Compositesmentioning

confidence: 99%

“…SEM images of a) MnO 2 /willow catkin-drived carbon, Reproduced with permission. [149] Copyright 2015, Elsevier, b) MnO 2 /human hair-drived carbon, Reproduced with permission. [150] Copyright 2015, The Royal Society of Chemistry, c) MnO 2 /kenaf stem-drived carbon, Reproduced with permission.…”

Section: Bio-macromolecule and Conducting Polymer Based Compositesmentioning

confidence: 99%

Bio‐Nanotechnology in High‐Performance Supercapacitors

Zhang

Wang

et al. 2017

Advanced Energy Materials

173

View full text Add to dashboard Cite

on seeking suitable electrode materials, and optimizing the electrode/electrolyte and electrode/current collector interface properties. As the core of such energystorage devices, the electrode materials directly determine the processing cost and performance of devices, such as their rate capability, specific capacitance (C sp ), cycling stability, etc, which enable the safe and highly-efficient use of energy. [1a,3] Based on the mechanisms of charge storage, SC electrodes can be classified as electric double layer electrodes (EDLEs), pseudocapacitive electrodes, and hybrid electrodes. Most of the EDLEs use carbon materials (activated carbon (AC), [4] carbon nanotubes (CNTs), [5] carbon nanofibers (CNFs), [6] graphene (GN), [7] etc.) as the electrode active materials and store energy only by electrostatic accumulation at the electrode/electrolyte interface. EDLEs usually show high charge-discharge rates and high cycling stability, while their energy densities (≈5 W h kg −1 ) are often greatly limited by the Brunauer-Emmett-Teller (BET) specific surface area (S BET ) and the pore size distribution of electrode materials. Pseudocapacitive electrodes are generally based on conductive polymers (polypyrrole (PPy), polyaniline (PANI), polythiophene, etc.) [8] and transition metal oxides/ hydroxides (Fe 3 O 4 , MnO 2 , RuO 2 , NiO, Co 3 O 4 , Ni(OH) 2 , etc.), [9] and use reversible faradic processes for energy storage. Compared to EDLEs, pseudocapacitive electrodes can offer much higher storage capabilities because of the faradic reactions involved. In the case of transition metal oxides/hydroxides, however, their poor electrical conductivity generally leads to low power density. In addition, the easily damaged structures of conductive polymers during the faradic processes usually lead to poor cycling stability. To resolve these problems, hybrid electrodes (GN/PPy, CNTs/PPy, GN/MnO 2 , PPy/MnO 2 , NiMoO 4 / PANI, CNTs/MoS 2 , PPy/MoS 2 , etc.) [10] have been developed to take complete advantage of both EDLEs and pseudocapacitive electrodes. For a long time, nanotechnological techniques have been considered as promising approaches to prepare highly efficient SC electrodes. [1b,11] Compared with micro-and submillimeter materials, nanomaterials as active SC electrodes have the following advantages: [12] (1) A high S BET means sufficient electroactive sites and thus high capacity utilization of electrode materials; (2) Intrinsic porous structures and small particle sizes, which contribute to the complete penetration of the electrolyte and reduce the diffusion path of electrolyte ions; (3) Highly ordered hierarchical structures can relieve the stress within the materials and offer stable channels for electron transfer, which can ensure good cycling stability; (4) The The use of bio-nanotechnology for the fabrication of diverse functional nanomaterials with precisely controlled morphologies and microstructures is attracting considerable attention due to its sustainability and renewability. As one of the key energy storag...

show abstract

Fabrication of manganese dioxide nanoplates anchoring on biomass-derived cross-linked carbon nanosheets for high-performance asymmetric supercapacitors

Cited by 132 publications

References 43 publications

Biomass‐Derived Carbon: A Value‐Added Journey Towards Constructing High‐Energy Supercapacitors in an Asymmetric Fashion

Biomass‐Derived Carbon: A Value‐Added Journey Towards Constructing High‐Energy Supercapacitors in an Asymmetric Fashion

Holey graphene/MnO ₂ nanosheets with open ion channels for high‐performance solid‐state asymmetric supercapacitors

Bio‐Nanotechnology in High‐Performance Supercapacitors

Contact Info

Product

Resources

About

Fabrication of manganese dioxide nanoplates anchoring on biomass-derived cross-linked carbon nanosheets for high-performance asymmetric supercapacitors

Cited by 132 publications

References 43 publications

Biomass‐Derived Carbon: A Value‐Added Journey Towards Constructing High‐Energy Supercapacitors in an Asymmetric Fashion

Biomass‐Derived Carbon: A Value‐Added Journey Towards Constructing High‐Energy Supercapacitors in an Asymmetric Fashion

Holey graphene/MnO 2 nanosheets with open ion channels for high‐performance solid‐state asymmetric supercapacitors

Bio‐Nanotechnology in High‐Performance Supercapacitors

Contact Info

Product

Resources

About

Holey graphene/MnO ₂ nanosheets with open ion channels for high‐performance solid‐state asymmetric supercapacitors