KOH activation of biomass-derived nitrogen-doped carbons for supercapacitor and electrocatalytic oxygen reduction

Lin, Gaoxin; Ma, Ruguang; Zhou, Yao; Liu, Qian; Dong, Xiaoping; Wang, Jiacheng

doi:10.1016/j.electacta.2017.12.107

Cited by 352 publications

(150 citation statements)

References 53 publications

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“…The synergistic effect of doping and defects would further lower the free energy and reaction overpotential, thus endowing such carbon materials with the potential to outperform the state-of-the-art Pt/C electrocatalyst in the catalytic activity. 105,106 A good example has been demonstrated by Wang et al, which is pyridinic-N-dominated doped DG serving as an excellent bifunctional electrocatalyst towards ORR and OER in rechargeable Zn-air batteries. 107 In the past decade, a combined experimental and theoretical strategy has been well developed to profoundly investigate the relationship among microstructure, catalytic mechanism and reaction kinetics of electrocatalysts.…”

Section: Discussionmentioning

confidence: 99%

A review of oxygen reduction mechanisms for metal-free carbon-based electrocatalysts

et al. 2019

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The sluggish kinetics of Oxygen Reduction Reaction (ORR) at the cathode in proton exchange membrane fuel cells or metal-air batteries requires highly effective and stable electrocatalysts to boost the reaction. The low abundance and high price of Pt-based electrocatalysts hamper the widespread application of proton exchange membrane fuel cells and metal-air batteries. As promising alternatives, metal-free carbon materials, especially upon doping heteroatoms or creating defects demonstrated excellent ORR activity, which is as efficient as or even superior to commercial platinum on carbon. Significant progress on the development of advanced carbon materials as highly stable and durable catalysts has been achieved, but the catalytic mechanisms of these materials still remain undistinguished. In present review, we summarized the up-to-date progress in the studies of carbon materials, and emphasized on the combination of experiment and theory to clarify the underlying mechanisms of these materials. At last, we proposed the perspectives on the proper strategies of elucidating the mechanisms of carbon materials as electrocatalysts towards ORR.npj Computational Materials (2019) 5:78 ; https://doi.

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Section: Discussionmentioning

confidence: 99%

A review of oxygen reduction mechanisms for metal-free carbon-based electrocatalysts

et al. 2019

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“…Besides, researchers could exert the unique chemical or structural characteristics of carbon sources to synthesize various porous carbons with different pore structures 43–45. Traditionally, potassium hydroxide (KOH),51,52 sodium hydroxide (NaOH),53,54 zinc chloride (ZnCl 2 ),55 phosphoric acid (H 3 PO 4 ),49,56 sodium carbonate (Na 2 CO 3 ),57 and potassium carbonate (K 2 CO 3 )57,58 have been used as activation agents. For a high‐level summary of the effect of traditional chemical activation agents on porous carbon, the relationships between the SSA and activation temperature of the activated carbon are shown in Figure 3b for a few chemical activation agents 59.…”

Section: Carbonization–activation Methodsmentioning

confidence: 99%

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

et al. 2020

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Supercapacitors (SCs) have experienced a significant increase in research activity and commercialization during the past few decades. As the primary and most important electrode active material for commercial SCs, porous carbon is produced at an industrial‐scale through traditional carbonization‐activation strategies. Nevertheless, commercial porous carbon materials have some disadvantages such as high production cost, corrosion of equipment, and emission of toxic gases and byproduct pollutants during production. In recent years, huge efforts have been made to develop novel synthesis strategies for porous carbon materials. This review focuses on the pore formation mechanisms in traditional carbonization‐activation methods, emerging activation methods, template methods, self‐template methods, and novel emerging methods for the synthesis of porous carbons for SCs. Strategies developed so far for the synthesis of porous carbon materials are summarized. The mechanisms and recent advances for each strategy are reviewed. Furthermore, future directions and synthesis strategies for porous carbons are proposed.

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“…prepared nitrogen‐doped porous carbon by carbonization of gelatin from animal bones, which showed large surface area (3012 m 2 g −1 ) and high capacitance (385 F g −1 at 0.05 at 1 A g −1 ). Lin et al . reported a nitrogen‐doped (1.37 at %) porous carbon obtained from nitrogen‐rich biomass soybean via a hard template strategy.…”

Section: Introductionmentioning

confidence: 99%

Effect of Self‐Doped Heteroatoms in Biomass‐Derived Activated Carbon for Supercapacitor Applications

Chen

Yang

et al. 2019

ChemistrySelect

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As a green and effective energy storage device, supercapacitors have been attractive due to their high power density along with long cycle stability. Among various electrode materials, carbon materials have drawn significant attention due to their wonderful properties, such as high specific surface area, electronic conductivity, chemical stability and porous structures. In addition, challenges come from global warming and environmental pollution, biomass derived carbon materials feature the concepts of the sustainable development of chemistry. In this, the review not only summarizes the most advanced progress in biomass derived heteroatoms self‐doped carbon materials for supercapacitor, but also provides important guidelines for the future design of biomass‐derived carbons with heteroatoms doping in specific energy applications.

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KOH activation of biomass-derived nitrogen-doped carbons for supercapacitor and electrocatalytic oxygen reduction

Cited by 352 publications

References 53 publications

A review of oxygen reduction mechanisms for metal-free carbon-based electrocatalysts

A review of oxygen reduction mechanisms for metal-free carbon-based electrocatalysts

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

Effect of Self‐Doped Heteroatoms in Biomass‐Derived Activated Carbon for Supercapacitor Applications

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