N-doped 3D hierarchical carbon from water hyacinth for high-performance Zn-air batteries

Shi, Kejian; Li, Yang; Zhang, Yanyan; Li, Xiaofei; Zhu, Zijian; Xu, Haiyu; Zheng, Lingcheng; Gao, Juan

doi:10.1016/j.diamond.2023.109841

Cited by 7 publications

(11 citation statements)

References 66 publications

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“…Among them, pyridinic-N and graphitic-N together promote the ORR activity of the catalysts. Pyridinic-N usually carries a lone pair of electrons, which will impact Lewis basicity to the adjacent carbon atoms and help to adsorb oxygen molecules and carry out the reaction. ,, In addition, graphitic-N helps to facilitate the 4e – transfer process of ORR and contributes to the dissolution of oxygen on the adjacent carbon atoms Figure d shows a P 2p spectrum with two deconvoluted peaks at 132.5 and 133.6 eV, corresponding to P–C and P–O bonds. ,, XPS spectra results show that the atomic content of C, N, and P is 97.24, 1.11, and 1.65%, respectively, which aligns with the TEM–EDS results.…”

Section: Resultsmentioning

confidence: 99%

“…Pyridinic-N usually carries a lone pair of electrons, which will impact Lewis basicity to the adjacent carbon atoms and help to adsorb oxygen molecules and carry out the reaction. 39,48,49 In addition, graphitic-N helps to facilitate the 4e − transfer process of ORR and contributes to the dissolution of oxygen on the adjacent carbon atoms. 48 Figure 4d shows a P 2p spectrum with two deconvoluted peaks at 132.5 and 133.6 eV, corresponding to P−C and P−O bonds.…”

Section: Morphological and Structural Characterizationmentioning

confidence: 99%

“…39,48,49 In addition, graphitic-N helps to facilitate the 4e − transfer process of ORR and contributes to the dissolution of oxygen on the adjacent carbon atoms. 48 Figure 4d shows a P 2p spectrum with two deconvoluted peaks at 132.5 and 133.6 eV, corresponding to P−C and P−O bonds. 37,46,50 XPS spectra results show that the atomic content of C, N, and P is 97.24, 1.11, and 1.65%, respectively, which aligns with the TEM− EDS results.…”

Section: Morphological and Structural Characterizationmentioning

confidence: 99%

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N/P-Codoped Carbon Nanotubes for Efficient Oxygen Reduction Reaction

Ding,

Zhang,

et al. 2023

ACS Appl. Nano Mater.

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Carbon materials doped with heteroatoms are considered as an optimal substitute for commercial Pt/C (JM-Pt/C) catalysts in oxygen reduction reactions (ORRs) owing to their cost-effectiveness and elevated efficacy. This paper reported a facile single-step approach for the synthesis of N/P-codoped carbon nanotubes (N/P-CNTs) using diammonium dihydrogen phosphate and 2-methylimidazole as precursors and carbon nanotubes (CNTs) as matrix materials. N/P-CNT-900 exhibited exceptional catalytic activity for ORR in alkaline environments with half-wave potential (E 1/2 ) of 0.83 V and showed commendable methanol tolerance and stability. In addition, the catalysts were used to construct a Zn−air battery (ZAB), and its open circuit voltage (OCV) and peak power density (1.56 V, 193.22 mW cm −2 ) surpassed the performance of JM-Pt/C catalysts (1.50 V, 96.04 mW cm −2 ), indicating their great advantage for extensive-scale utilization in electrochemical energy conversion devices. This work provided ideas for the development and optimization of metal-free ORR catalysts.

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Section: Resultsmentioning

confidence: 99%

Section: Morphological and Structural Characterizationmentioning

confidence: 99%

Section: Morphological and Structural Characterizationmentioning

confidence: 99%

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N/P-Codoped Carbon Nanotubes for Efficient Oxygen Reduction Reaction

Ding,

Zhang,

et al. 2023

ACS Appl. Nano Mater.

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“…[126] As a floating water plant biomass, the water hyacinth can act as the precursor to synthesizing an N-doped carbon catalyst (WHNCÀ A) by pre-treatment and pyrolysis. [127] The XPS demonstrated WHNCÀ A catalysts contained pyridinic-N, pyrrolic-N, graphitic-N, and oxide-N and the content sequence is pyridinic-N > pyrrolic-N > graphitic-N > oxide-N (Figure 6b). Furthermore, pyridinic-N, the vitally dynamic focus in the ORR reaction, helps the ORR in handling by controlling the nearby electronic structure, putting away electrons, and lowering the energy potential for oxygen adsorption, making it easier for oxygencontaining species to retain electrons from pyridinic-N via adsorption.…”

Section: Mono-dopingmentioning

confidence: 98%

“…[127] Reproduced from ref. [127] Copyright (2023), with permission from Elsevier B.V. (d) Synthesis and properties of SLÀ C-800. [130] Reproduced from ref.…”

Section: Multiple-dopingmentioning

confidence: 99%

Biomass‐Derived Catalytically Active Carbon Materials for the Air Electrode of Zn‐Air Batteries

Zhou,

Wu,

Liu

et al. 2024

ChemSusChem

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Given the growing environmental and energy problems, developing clean, renewable electrochemical energy storage devices is of great interest. Zn–air batteries (ZABs) have broad prospects in energy storage because of their high specific capacity and environmental friendliness. The reason that hinders the large‐scale application of ZABs is the lack of cheap air materials and efficient and stable catalysts to catalyze air electrodes. Due to the abundant biomass resources, self‐doped heteroatoms, and unique pore structure, biomass‐derived catalytically active carbon materials (CACs) have great potential to prepare carbon‐based catalysts and porous electrodes with excellent performance for ZABs. This paper reviews the research progress of biomass‐derived CACs applied to ZABs air electrodes. Specifically, the principle of ZABs and the source and preparation method of biomass‐derived CACs are introduced. To efficiently prepare biomass‐based oxygen electrocatalysts, heteroatom doping and transition metal modification were introduced to improve the efficiency and stability of carbon materials. Finally, the effects of electron transfer number and H2O2 yield in ORR on the performance of ZABs were evaluated. This review aims to deepen the understanding of the advantages and challenges of s in the air electrodes of ZABs, promote more comprehensive research on biomass resources, and accelerate the commercial application of ZABs.

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Co-impregnated aquatic biomass-based biochar as an oxygen reduction reaction catalyst for bioelectricity generation from membrane-less single-chambered microbial fuel cells

Chaturvedi,

Kundu

2024

Biomass Conv. Bioref.

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N-doped 3D hierarchical carbon from water hyacinth for high-performance Zn-air batteries

Cited by 7 publications

References 66 publications

N/P-Codoped Carbon Nanotubes for Efficient Oxygen Reduction Reaction

N/P-Codoped Carbon Nanotubes for Efficient Oxygen Reduction Reaction

Biomass‐Derived Catalytically Active Carbon Materials for the Air Electrode of Zn‐Air Batteries

Co-impregnated aquatic biomass-based biochar as an oxygen reduction reaction catalyst for bioelectricity generation from membrane-less single-chambered microbial fuel cells

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