Biomass-derived nitrogen self-doped porous activation carbon as an effective bifunctional electrocatalysts

Sun, Yuanqing; Ouyang, Yiming; Luo, Jiaqing; Cao, Haishan; Li, Xiang; Ma, Jingwen; Liu, Jian; Wang, Yuanhao; Lin, Lu

doi:10.1016/j.cclet.2020.09.027

Cited by 27 publications

(10 citation statements)

References 58 publications

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“…With a large specific surface area, NDACs could be excellent materials for removing contaminants such as toxic pollutants from wastewater 24 . Furthermore, NDACs can be used as an electro-catalyst in manufacturing 49 . Similarly, activated carbon doped with nitrogen can be employed as a novel material with a high CO 2 collection capacity 50 .…”

Section: Introductionmentioning

confidence: 99%

“…The percentage removal of AO7 dye reached 99% for Pea- NH 2 and 98% for Pea-TETA. Sun et al 49 fabricated nitrogen self-doped porous activation carbon (N-PAC) with large specific surface area (SBET = 1300.58 m 2 /g) as bifunctional electrocatalysts. The N-PAC is prepared by a simplistic pyrolysis process from marine algae at controlled temperature with ZnCl 2 .…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of N-doping activated carbons from fish waste and sawdust for Acid Yellow 36 dye removal from an aquatic environment

El‐Nemr

Hassaan

Ashour

2023

Sci Rep

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Acid Yellow 36 (AY36) dye is a synthetic azo dye that is excessively used in various industries, causing hazardous environmental effects. The main target of this study is the preparation of self-N-doped porous activated carbon (NDAC) and the investigation in eliminating the AY36 dye from the water solution. The NDAC was prepared by mixing fish waste (60% protein content) which was considered a self-nitrogen dopant. A combination of Fish waste, sawdust, zinc chloride and urea with a mass ratio (5:5:5:1) was submitted to hydrothermal process at 180 °C for 5 h followed by pyrolysis for 1 h under N2 stream at 600, 700, and 800 °C. Fabricated NDAC was qualified as an adsorbent for recovering AY36 dye from water using batch trials. The fabricated NDAC samples were characterized by FTIR, TGA, DTA, BET, BJH, MP, t-plot, SEM, EDX, and XRD methods. The results showed the successful formation of NDAC with nitrogen mass percentage content (4.21, 8.13 and 9.85%). The NDAC prepared at 800 °C had the largest nitrogen content (9.85%) and was labeled as NDAC800. This later had 727.34 m2/g, 167.11 cm3/g, and 1.97 nm for specific surface area, the monolayer volume and the mean pores diameter respectively. By being the more efficient adsorbent, NDAC800 was chosen to test AY36 dye removal. Therefore, it is selected to investigate the removal of AY36 dye from aqueous solution by varying important parameters such as solution pH, initial dye concentration, adsorbent dosage and contact time. The removal of AY36 dye by NDAC800 was pH-dependent, with the optimum pH value 1.5 giving 85.86% removal efficiency and 232.56 mg/g maximum adsorption capacity (Qm). The kinetic data exhibited the best fit model with the pseudo-second-order (PSOM), while the equilibrium data fit well with the Langmuir (LIM) and Temkin (TIM). The mechanism of AY36 dye adsorption may be ascribed to the electrostatic contact between the dye and the available charged sites on NDAC800 surface. The prepared NDAC800 may be considered as an efficient, available, and eco-friendly adsorbent for AY36 dye adsorption from simulated water.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of N-doping activated carbons from fish waste and sawdust for Acid Yellow 36 dye removal from an aquatic environment

El‐Nemr

Hassaan

Ashour

2023

Sci Rep

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“…During pyrolysis process, the activation process for H 3 PO 4 attacking biomass-based carbon was a chemical reaction, which could be facilitated to form more pore structure by the increasing pyrolysis temperature. [23] When the pyrolysis temperature was elevated to 1000 °C, the specific surface area of P/Fe-SS 800 was slightly reduced, which was probably due to the collapse of pores at too high temperature. [24] Moreover, P/Fe-SS 900 had a higher specific surface area than that of SS 900, which was in connection with the more abundant pores resulted from the fluffy spongy morphology and activation with H 3 PO 4 .…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Iron and Phosphorous‐Embedded Nitrogen‐Containing Porous Carbon as an Efficient Electrocatalyst for Microbial Fuel Cells

Zheng

Rao

et al. 2021

ChemElectroChem

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Efficient and stable electrocatalysts are required for microbial fuel cells (MFCs). They must be accessible to realize industrialization. Herein, a hierarchically porous phosphorus and ironembedded nitrogen-containing carbon (P/Fe-SS) was synthesized with shrimp shells as a carbon matrix via a facile oxidation pretreatment and pyrolysis process, where FeCl 3 and H 3 PO 4 were used as the catalyst and activator, respectively. Meanwhile, both of them acted as the doping sources to induce more active sites. The optimal pyrolysis temperature (900 °C) introduced a large specific surface area (857 m 2 /g) and hierarchical pores, facilitating the exposure of active sites. Furthermore, the presence of pyridinic-N and Fe/P active sites endowed P/Fe-SS 900 with excellent activity during the oxygen reduction reaction process. In particular, P/Fe-SS 900 showed higher long-term stability and poisoning resistance than those of Pt/C. When P/ Fe-SS 900 was applied as an air cathode in a MFC, its maximum power density reached 96.7 % of that of Pt/C. These results provide a promising alternative to Pt/C for MFC application due to their low cost, accessibility, and high stability.

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“…Specifically, N atoms, owing to the similar atom radius and higher electronegativity, can be easily doped into a carbon lattice to form pyridinic N, pyrrolic N, and graphitic N, and then alter the electronic distribution. 138–141 For example, a 3D nickel diselenide on N-doped carbon (NiSe 2 /NC) showed superior UOR catalytic performance to the sample without doping due to the enlarged available active area and improved conductivity. 142 In the report of Ni nanoparticles embedded into the nitrogen-doped carbon nanotubes (NCNT), 143 N dopants altered the electronic structure of Ni at the heterointerface of metal-NCNT and facilitated the formation of Ni 3+ active species.…”

Section: Hetero-structured Ni-based Catalystsmentioning

confidence: 99%

A review of hetero-structured Ni-based active catalysts for urea electrolysis

Wang

Sun

et al. 2022

J. Mater. Chem. A

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Biomass-derived nitrogen self-doped porous activation carbon as an effective bifunctional electrocatalysts

Cited by 27 publications

References 58 publications

Fabrication of N-doping activated carbons from fish waste and sawdust for Acid Yellow 36 dye removal from an aquatic environment

Fabrication of N-doping activated carbons from fish waste and sawdust for Acid Yellow 36 dye removal from an aquatic environment

Synthesis of Iron and Phosphorous‐Embedded Nitrogen‐Containing Porous Carbon as an Efficient Electrocatalyst for Microbial Fuel Cells

A review of hetero-structured Ni-based active catalysts for urea electrolysis

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