Nitrogen and phosphorus co-doped carbon networks derived from shrimp shells as an efficient oxygen reduction catalyst for microbial fuel cells

Zheng, Fengyi; Li, Ruisong; Ge, Shiyu; Xu, Wen-Rong; Zhang, Yucang

doi:10.1016/j.jpowsour.2019.227356

Cited by 68 publications

(29 citation statements)

References 57 publications

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“…In Zheng et al.′s experiments, they used shrimp shells as raw materials and used a similar processing method as ours. The maximum output power density was 802 mW m −2 . Compared with Zheng et al., the shrimp shell materials was produced in different ways.…”

Section: Resultsmentioning

confidence: 88%

Nitrogen and Phosphorus Doped Activated Carbon Catalyst Prepared from Shrimp Shell and its Application in MFC Air Cathode

Liu

Pierre

et al. 2020

ChemistrySelect

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Cathode design and cost is one of the major challenges for microbial fuel cell (MFC) large scale operation due to the adoption of precious Pt/C catalyst. In this work, shrimp shells were chosen to prepare a cheap and sustainable ORR catalyst and applied it in MFC air cathode. Single step pyrolysis and activation at 700 °C with H3PO4 was used to introduce phosphorus atom in the carbon. Three types of catalysts, named shrimp shells activated carbon (SS‐AC), commercial activated carbon (C‐AC) and Pt/C were compared for their performance in MFC system. The results showed that SS‐AC had high porous surface that contained nitrogenous and phosphorous functionalities at a significant percentage with high surface area of about 448.96 m2 g−2. The maximum power density achieved by the MFC that used SS‐AC catalyst was 1207±15 mW m−2 at 3.14 A m−2, 12 % less than Pt/C and 44 % higher than those of the C‐AC. The coulombic efficiency of 67 % was also achieved with this MFC slightly lower than those by Pt/C and higher than those by C‐AC. The good performance of this material was mainly due to the double doped heteroatoms which increases the oxygen reduction sites on the surface of the carbon.

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Section: Resultsmentioning

confidence: 88%

Nitrogen and Phosphorus Doped Activated Carbon Catalyst Prepared from Shrimp Shell and its Application in MFC Air Cathode

Liu

Pierre

et al. 2020

ChemistrySelect

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“…The resulting catalyst exhibited similar ORR activity and MFC performance to those of commercial Pt/C. [19] When the biomass-based carbon catalysts are applied in MFC to treat sewage, they require high resistance to toxic sources. Yang et al demonstrated that the incorporation of Fe into Ncontaining carbon could improve its poison resistance.…”

Section: Introductionmentioning

confidence: 90%

“…Prior to pyrolysis, the oxidation pretreatment of SS was carried out using FeCl 3 as catalyst in the presence of hydrogen peroxide solution. Briefly, SS flakes were collected according to our previous research, [19] then 10 g of SS flakes was crushed into small particles and further dispersed in 400 mL of 10 % H 2 O 2 solution with ultrasound for 30 min. Subsequently, 1.0 mL of FeCl 3 solution (6.17 mol/L) was added drop by drop to achieve the oxidized SS.…”

Section: Preparation Of P and Fe Embedded N-containing Carbonmentioning

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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“…The high‐resolution P 2p spectra are still very weak due to the low P content. The peaks at 133.3 and 135.5 eV can be ascribed to the P−C and P−O (Figure D) . Both of them could cause the charge delocalization of carbon adjacent to heteroatom with higher electronegativity to form electron poverty, which was generally beneficial for ORR.…”

Section: Figurementioning

confidence: 99%

Confined Synthesis of N, P Co–Doped 3D Hierarchical Carbons as High‐Efficiency Oxygen Reduction Reaction Catalysts for Zn–Air Battery

et al. 2020

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Oxygen reduction reaction (ORR) catalysts with hierarchical pore structures, high specific surface area and multiple heteroatoms doping is very attractive due to the rapid mass transport and abundant active sites. In this work, we reported a facile confined strategy to prepare N, P co‐doped hierarchical porous carbon (NPHC) and investigated their catalytic performance for ORR. The strategy greatly simplifies the synthesis procedure of 3D hierarchical carbon templated by SiO2, which can utilize small organic molecules as carbon sources and avoids the pre‐polymerization and post‐washing process. Moreover, this strategy can be readily extended to synthesis other carbons by simply changing the carbon sources and heteroatom sources, or to synthesize metal compounds/carbon composites by adding metal sources during the synthesis process for energy conversion and storage.

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Nitrogen and phosphorus co-doped carbon networks derived from shrimp shells as an efficient oxygen reduction catalyst for microbial fuel cells

Cited by 68 publications

References 57 publications

Nitrogen and Phosphorus Doped Activated Carbon Catalyst Prepared from Shrimp Shell and its Application in MFC Air Cathode

Nitrogen and Phosphorus Doped Activated Carbon Catalyst Prepared from Shrimp Shell and its Application in MFC Air Cathode

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

Confined Synthesis of N, P Co–Doped 3D Hierarchical Carbons as High‐Efficiency Oxygen Reduction Reaction Catalysts for Zn–Air Battery

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