N and P dual heteroatom doped mesoporous hollow carbon as an efficient oxygen reduction reaction catalyst in alkaline electrolyte

Duraisamy, Velu; Kumar, Sakkarapalayam Murugesan Senthil

doi:10.1016/j.ijhydene.2022.03.284

Cited by 23 publications

(21 citation statements)

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“…The most common strategies for synthesizing carbon materials using PA involve the direct pyrolysis of PA, which acts as both the carbon source and the heteroatom source [ 5 , 20 , 53 , 54 ]. The addition of a hard template (often silica) into the precursor mixture provides additional porosity when it is removed after the pyrolysis step [ 20 , 49 , 52 , 55 , 56 ]. Another strategy involves the chemical or thermal modification of previously prepared carbon nanomaterials with PA; in this case, PA functions as an activator (improving the porosity/microstructure) and/or heteroatom doping agent [ 57 , 58 , 59 ].…”

Section: Methods For Synthesizing Heteroatom-doped Carbon Materialsmentioning

confidence: 99%

“…In this approach, a template assists the formation of pores with narrow size distribution, thereby increasing the surface area, mass transport, and diffusion, which are essential for catalytic applications [ 84 ] ( Table 2 ). Duraisamy et al synthesized homogeneous N- and P-doped carbon spheres through a polymerization reaction [ 55 ]. In the first synthetic step, tetraethoxysilane (TEOS) was used to prepare silica spheres, which were subsequently coated with polydopamine and PA.…”

Section: Methods For Synthesizing Heteroatom-doped Carbon Materialsmentioning

confidence: 99%

“…Duraisamy et al investigated the loading and duration of the addition of PA during the synthesis of carbon spheres using silica, dopamine hydrochloride (DA), and PA. Adding PA to the DA–SiO 2 mixture for 10 h resulted in the formation of spherical, joined particles (diameter ~198 nm) [ 55 ]. Extending the duration of the addition of PA to 30 h generated spheres with larger diameters (~264 nm) and thicker sphere walls (thickness increased from 25 to 53 nm), owing to a greater degree of aggregation of polydopamine and PA. Interestingly, the shell thickness and sphere diameter decreased as the PA loading increased.…”

Section: Effects Of Phytic Acid On the Physicochemical Properties Of ...mentioning

confidence: 99%

“…Direct carbonization of PA at 500 °C yielded carbon residues with P content up to 13.59%, which decreased to 3.6% after raising the temperature to 800 °C [ 18 ]. In general, high temperatures promote the conversion of phosphorous-containing functional groups into atomic phosphorus in the carbon network [ 50 , 55 , 57 ].…”

Section: Effects Of Phytic Acid On the Physicochemical Properties Of ...mentioning

confidence: 99%

“… Electrocatalyst Catalysts’ Loading (mg cm −2 ) Electrolyte (mol/dm 3 ) Onset Potential (V vs. RHE) Half-Wave Potential (V vs. RHE) Current Density (mA cm −2 ) (V vs. RHE) Lit. N,P-HCS 0.46 0.1 KOH 0.88 0.81 5.62 [ 56 ] MnNPC-900 0.25 0.1 KOH 0.95 0.82 5.0 [ 49 ] NPHS-0.4 0.20 0.1 KOH 0.97 0.79 4.7 [ 55 ] FeNPC 0.25 0.1 KOH 1.03 0.88 6.5 [ 23 ] PON/C-“Rb” 0.21 0.1 KOH 1.00 0.87 - [ 52 ] …”

Section: Oxygen Reduction Performance Of Pa-derived Electrocatalystsmentioning

confidence: 99%

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Carbon-Based Electrocatalyst Design with Phytic Acid—A Versatile Biomass-Derived Modifier of Functional Materials

Gwóźdź

Brzęczek-Szafran

2022

IJMS

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Increasing energy demands exacerbated by energy shortages have highlighted the urgency of research on renewable energy technologies. Carbon materials that can be employed as advanced electrodes and catalysts can increase the accessibility of efficient and economical energy conversion and storage solutions based on electrocatalysis. In particular, carbon materials derived from biomass are promising candidates to replace precious-metal-based catalysts, owing to their low cost, anti-corrosion properties, electrochemical durability, and sustainability. For catalytic applications, the rational design and engineering of functional carbon materials in terms of their structure, morphology, and heteroatom doping are crucial. Phytic acid derived from natural, abundant, and renewable resources represents a versatile carbon precursor and modifier that can be introduced to tune the aforementioned properties. This review discusses synthetic strategies for preparing functional carbon materials using phytic acid and explores the influence of this precursor on the resulting materials’ physicochemical characteristics. We also summarize recent strategies that have been applied to improve the oxygen reduction performance of porous carbon materials using phytic acid, thereby offering guidance for the future design of functional, sustainable carbon materials with enhanced catalytic properties.

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Section: Methods For Synthesizing Heteroatom-doped Carbon Materialsmentioning

confidence: 99%

Section: Methods For Synthesizing Heteroatom-doped Carbon Materialsmentioning

confidence: 99%

Section: Effects Of Phytic Acid On the Physicochemical Properties Of ...mentioning

confidence: 99%

Section: Effects Of Phytic Acid On the Physicochemical Properties Of ...mentioning

confidence: 99%

Section: Oxygen Reduction Performance Of Pa-derived Electrocatalystsmentioning

confidence: 99%

See 3 more Smart Citations

Carbon-Based Electrocatalyst Design with Phytic Acid—A Versatile Biomass-Derived Modifier of Functional Materials

Gwóźdź

Brzęczek-Szafran

2022

IJMS

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Multilayer Porous Fe/Co‐N‐MWCNT Electrocatalyst For Rechargeable Zinc‐Air Batteries

Ma,

Wang,

Zang

et al. 2024

Chemistry An Asian Journal

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The rational design of efficient, stable, low‐cost non‐precious metal‐based electrocatalysts with enhanced oxygen reduction reaction (ORR) activity has attracted widespread attention. In this study, a novel electrocatalyst, Fe/Co‐N‐MWCNT, was prepared by in‐situ growth of ZIF‐8 and Fe/Co‐Phen on multi‐walled carbon nanotubes (MWCNTs), then pyrolysis under different temperature to obtain optimal one. During the pyrolysis process, the incorporation of Fe and Co facilitated the formation of metal active sites and Fe‐Co alloy, thereby promoting electron transfer and enhancing the ORR activity. Compared to Pt/C (E1/2 = 0.854V, JL = 4.90 mA cm‐2), Fe/Co‐N‐MWCNT demonstrated a comparable half‐wave potential (E1/2 = 0.812V) and an enhanced limiting current density (JL = 5.37 mA cm‐2). Furthermore, Fe/Co‐N‐MWCNT was stable and showed no significant change after 2000 cycles, with only a negative shift of 7 mV in E1/2. Ampere response testing revealed that the current decay of Fe/Co‐N‐MWCNT after 10000 s was only about 7.8%, while that of Pt/C was about 18.4%. Due to its excellent catalytic stability, Fe/Co‐N‐MWCNT was demonstrated to be an excellent candidate for rechargeable zinc‐air batteries. The outstanding electrocatalytic performance of Fe/Co‐N‐MWCNT can be attributed to its high pyridinic nitrogen content, the unique structure and abundant metal active sites.

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Investigation of the Heteroatom Doping Effect on Gasification Fine Slag Residue Carbon Oxygen Reduction Reaction Catalysts

Wang

Gong

et al. 2023

Energy Tech

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Coal gasification fine slag (GFS) is a kind of solid waste that is produced from industrial entrained‐flow gasification plants. Using the GFS flotation residue as a carbon source for the oxygen reduction reaction (ORR) catalyst is therefore an effective recycling method that will gain great attention. Herein, the carbon residue after the flotation of GFS is used as the precursor to prepare ORR catalysts through CO2 activation. Combined with the characterization of Raman spectroscopy, X‐ray photoelectron spectroscopy, and scanning electron microscopy, the influence of N, P, Fe, Ca, and other doped elements on the physical and chemical structure of the catalyst is explored. The results demonstrate that calcium chloride causes the decrease of reactive nitrogen, and has a negative effect on the development of pore structure. The active nitrogen content of ammonium phosphate as a nitrogen source is lower than that of ammonium chloride as a nitrogen source. The codoping of ammonium phosphate and ferrocene produces a mutual inhibitory effect, resulting in lower doping levels of phosphorus and iron. This study has great significance for the activation and heteroatom doping treatment of ORR catalysts prepared from gasification residue carbon.

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N and P dual heteroatom doped mesoporous hollow carbon as an efficient oxygen reduction reaction catalyst in alkaline electrolyte

Cited by 23 publications

References 59 publications

Carbon-Based Electrocatalyst Design with Phytic Acid—A Versatile Biomass-Derived Modifier of Functional Materials

Carbon-Based Electrocatalyst Design with Phytic Acid—A Versatile Biomass-Derived Modifier of Functional Materials

Multilayer Porous Fe/Co‐N‐MWCNT Electrocatalyst For Rechargeable Zinc‐Air Batteries

Investigation of the Heteroatom Doping Effect on Gasification Fine Slag Residue Carbon Oxygen Reduction Reaction Catalysts

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