Solvent-free synthesis of honeycomb-like N-doped porous carbon derived from biomass pine sawdust as an efficient metal-free electrocatalyst for oxygen reduction reaction

Chen, Xiliang; Zhang, Wei; Qu, Yongfang; Chen, Xin; Liu, Yong; Lu, Can‐Zhong

doi:10.1016/j.jelechem.2022.116909

Cited by 5 publications

(3 citation statements)

References 47 publications

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“…198 In addition, the hierarchical porous structure with a high specific surface area favors mass transfer. 199 Recently, Chen et al 200 developed N-doped carbon with a honeycomb-like porous structure by one-step pyrolysis of pine sawdust (C source) with melamine (N source) and K 2 CO 3 (activating agent) (Fig. 14a).…”

Section: Porous Carbons For Energy Conversion and Generationmentioning

confidence: 99%

One-pot synthesis of biomass-derived porous carbons for multipurpose energy applications

Shen,

Zhu

2024

J. Mater. Chem. A

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Section: Porous Carbons For Energy Conversion and Generationmentioning

confidence: 99%

One-pot synthesis of biomass-derived porous carbons for multipurpose energy applications

Shen,

Zhu

2024

J. Mater. Chem. A

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“…In contrast, various biomass has natural unique morphological structure. Currently, the reported literature classifies carbon material structures into four categories: 0D spheres, 1D carbon nanotubes, 2D carbon nanosheets and 3D porous carbon, and the different morphologies of carbon materials are suitable for different fields such as catalysis, [31,32] adsorption [33,34] and energy storage, [35,36] respectively. The low-dimensional materials have unique advantages in charge transfer.…”

Section: Number Of Papers Published On Electrode Materials Formentioning

confidence: 99%

Recent Advances in Biomass Waste Derived Carbon Materials for Supercapacitors: A Review

Chen,

Wang,

Wang

2024

Energy Tech

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As the core component of supercapacitors (SCs), the electrode material plays a decisive role in performance. Among electrode materials, carbon materials are the most widely used due to high porosity and specific surface area (SSA, 1000–3000 m2 g−1). Biomass carbon stands out in carbon materials because of its wide source, low cost, and less pollution. This work reviews the recent advances on carbon materials derived from biomass waste for SCs and explores the effects of different biomass sources including plant, animal, and aquatic organism waste on the performance of biomass waste‐derived carbon materials (BWDCs). Because of its high conductivity (1.25 × 103 ≈ 3 × 105 S m−1), power density (>10 kW kg−1), and extended cycle life (>10 000 cycles), BWDCs are advancing quickly in energy storage. It also discusses different methods and optimization pathways of BWDCs thoroughly. Finally, the challenges and future prospects for BWDCs are summarized. Overall, this critical will help researchers to gain a better understanding of source selection, structural classification, and research strategies for BWDCs, thereby promoting the application of BWDCs in electrochemistry and resource utilization.

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“…[14] Incorporating K 2 CO 3 with melamine during pyrolysis in a nitrogen atmosphere has been demonstrated to produce beneficial pores that augment the ORR in N-doped C catalysts. [15] Metal salts such as FeCl 3 , CuCl 2 , and ZnCl 2 have been employed as activating agents in N-doped C for energy-related reactions. [16] Metals and metal-oxides, like Cu and CuO, co-activate the carbon structure alongside H 3 PO 4 , facilitating carbon activation during pyrolysis under a nitrogen atmosphere.…”

Section: Introductionmentioning

confidence: 99%

High‐Temperature Air Synthesis: A Facile Approach to Nitrogen‐Doped, Metal‐Free Carbon Electrocatalysts

et al. 2023

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This study presents a novel, straightforward method for synthesizing hierarchical nitrogen‐doped carbon structures, positioning metal‐free, carbon‐based materials as potential substitutes in electrochemical reactions such as oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER). The unique method involves a single‐step pyrolysis process in an air atmosphere, eliminating the need for an inert atmosphere and pre‐treatment procedures. It enables simultaneous self‐templating and heteroatom doping, resulting in oxygen‐rich functional groups embedded in the nitrogen‐doped carbon structure. We also crafted a carbon structure without heteroatom doping, comparing its electrochemical performance in ORR and HER. Our findings indicate that carbon catalysts pyrolyzed at higher temperatures have more pyridinic N, functional groups, and active sites‐ factors conducive to electrochemical reactions. We tested the air‐synthesized electrocatalysts for ORR in alkaline electrolyte and employed the optimized nitrogen‐doped carbon catalyst, pyrolyzed at 700 °C in an air atmosphere, as cathode material in a zinc‐air battery. This catalyst demonstrated ORR performance comparable to the commercial Pt/C catalyst and showed minimal overpotential in acidic HER. Our research establishes a pioneering technique for synthesizing porous, metal‐free, nitrogen‐doped carbon materials, paving the way for potential energy applications.

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Solvent-free synthesis of honeycomb-like N-doped porous carbon derived from biomass pine sawdust as an efficient metal-free electrocatalyst for oxygen reduction reaction

Cited by 5 publications

References 47 publications

One-pot synthesis of biomass-derived porous carbons for multipurpose energy applications

One-pot synthesis of biomass-derived porous carbons for multipurpose energy applications

Recent Advances in Biomass Waste Derived Carbon Materials for Supercapacitors: A Review

High‐Temperature Air Synthesis: A Facile Approach to Nitrogen‐Doped, Metal‐Free Carbon Electrocatalysts

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