Porous N,P-doped carbon from coconut shells with high electrocatalytic activity for oxygen reduction: Alternative to Pt-C for alkaline fuel cells

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Porous N,P-doped carbon from coconut shells with high electrocatalytic activity for oxygen reduction : Alternative to Pt-C for alkaline fuel cells. / Borghei, Maryam; Laocharoen, Nikorn; Kibena-Põldsepp, Elo; Johansson, Leena Sisko; Campbell, Joseph; Kauppinen, Esko; Tammeveski, Kaido; Rojas, Orlando J.

In: APPLIED CATALYSIS B-ENVIRONMENTAL, Vol. 204, 05.05.2017, p. 394-402.

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@article{e9580c02aa63478ea605f5b99ebdd577,
title = "Porous N,P-doped carbon from coconut shells with high electrocatalytic activity for oxygen reduction: Alternative to Pt-C for alkaline fuel cells",
abstract = "This study introduces a new, environmentally-friendly method to synthesize N,P-doped porous carbon by high conversion (46{\%} yield) of coconut shell residues for the reduction of oxygen in alkaline media. The obtained materials display an excellent electrocatalytic activity, making them suitable as cathode catalyst for alkaline fuel cells. The synthesis procedure included an efficient single-step activation with phosphoric acid to achieve high surface area (1216 m2 g−1) and pore volume (1.15 cm3 g−1 with 72{\%} mesopores). Urea was used as a low-cost and ecologically-sound source for nitrogen doping of the as-synthesized porous carbon. Remarkably, the biomass-derived electroactive carbon demonstrates a superior performance compared to a reference material, the state-of-the-art commercial Pt-C catalyst: (a) comparable electrocatalytic activity; (b) better tolerance to methanol crossover effects and, (c) improved long-term durability towards oxygen reduction reaction in alkaline media.",
keywords = "Coconut shells, Electrocatalyst, Fuel cells, Nitrogen-doped carbon, Oxygen reduction reaction (ORR)",
author = "Maryam Borghei and Nikorn Laocharoen and Elo Kibena-P{\~o}ldsepp and Johansson, {Leena Sisko} and Joseph Campbell and Esko Kauppinen and Kaido Tammeveski and Rojas, {Orlando J.}",
year = "2017",
month = "5",
day = "5",
doi = "10.1016/j.apcatb.2016.11.029",
language = "English",
volume = "204",
pages = "394--402",
journal = "APPLIED CATALYSIS B-ENVIRONMENTAL",
issn = "0926-3373",
publisher = "Elsevier BV",

}

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TY - JOUR

T1 - Porous N,P-doped carbon from coconut shells with high electrocatalytic activity for oxygen reduction

T2 - Alternative to Pt-C for alkaline fuel cells

AU - Borghei, Maryam

AU - Laocharoen, Nikorn

AU - Kibena-Põldsepp, Elo

AU - Johansson, Leena Sisko

AU - Campbell, Joseph

AU - Kauppinen, Esko

AU - Tammeveski, Kaido

AU - Rojas, Orlando J.

PY - 2017/5/5

Y1 - 2017/5/5

N2 - This study introduces a new, environmentally-friendly method to synthesize N,P-doped porous carbon by high conversion (46% yield) of coconut shell residues for the reduction of oxygen in alkaline media. The obtained materials display an excellent electrocatalytic activity, making them suitable as cathode catalyst for alkaline fuel cells. The synthesis procedure included an efficient single-step activation with phosphoric acid to achieve high surface area (1216 m2 g−1) and pore volume (1.15 cm3 g−1 with 72% mesopores). Urea was used as a low-cost and ecologically-sound source for nitrogen doping of the as-synthesized porous carbon. Remarkably, the biomass-derived electroactive carbon demonstrates a superior performance compared to a reference material, the state-of-the-art commercial Pt-C catalyst: (a) comparable electrocatalytic activity; (b) better tolerance to methanol crossover effects and, (c) improved long-term durability towards oxygen reduction reaction in alkaline media.

AB - This study introduces a new, environmentally-friendly method to synthesize N,P-doped porous carbon by high conversion (46% yield) of coconut shell residues for the reduction of oxygen in alkaline media. The obtained materials display an excellent electrocatalytic activity, making them suitable as cathode catalyst for alkaline fuel cells. The synthesis procedure included an efficient single-step activation with phosphoric acid to achieve high surface area (1216 m2 g−1) and pore volume (1.15 cm3 g−1 with 72% mesopores). Urea was used as a low-cost and ecologically-sound source for nitrogen doping of the as-synthesized porous carbon. Remarkably, the biomass-derived electroactive carbon demonstrates a superior performance compared to a reference material, the state-of-the-art commercial Pt-C catalyst: (a) comparable electrocatalytic activity; (b) better tolerance to methanol crossover effects and, (c) improved long-term durability towards oxygen reduction reaction in alkaline media.

KW - Coconut shells

KW - Electrocatalyst

KW - Fuel cells

KW - Nitrogen-doped carbon

KW - Oxygen reduction reaction (ORR)

UR - http://www.scopus.com/inward/record.url?scp=84999017244&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2016.11.029

DO - 10.1016/j.apcatb.2016.11.029

M3 - Article

VL - 204

SP - 394

EP - 402

JO - APPLIED CATALYSIS B-ENVIRONMENTAL

JF - APPLIED CATALYSIS B-ENVIRONMENTAL

SN - 0926-3373

ER -

ID: 10346832