Interconnected porous structural construction of Mn- and N-Doped carbon nanosheets for fuel cell application

Jiawei Shi; Shibing Deng; Xinyue Hu; Xiujuan Sun; Shunfa Zhou; Liyuan Fan; Weiwei Cai; Jing Li

doi:10.1021/acs.energyfuels.2c02061

Interconnected porous structural construction of Mn- and N-Doped carbon nanosheets for fuel cell application

Jiawei Shi, Shibing Deng, Xinyue Hu, Xiujuan Sun, Shunfa Zhou, Liyuan Fan, Weiwei Cai, Jing Li^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The lack of a cost-effective oxygen reduction reaction (ORR) catalyst is the key technical issue that restricts the large-scale application of proton-exchange membrane fuel cells (PEMFCs). Transition metal-N_x/C has exhibited promising potential to replace the precious Pt-based catalyst, and Mn-N_x/C is becoming the research hotspot as a result of the Fenton-inert property of Mn. To further improve the ORR activity of the Mn-N_x/C catalyst, a three-dimensional (3D) interconnected porous structure is constructed in two-dimensional Mn- and N-doped carbon nanosheets via a "porogen-in-resin" strategy. In combination with a post-adsorption treatment, the so-called 3D Mn-N_x/CS catalyst exhibits great ORR catalytic activity and stability under both acidic and alkaline conditions. The half-wave potential (E_1/2) of 3D Mn-N_x/CS is high at 0.918 and 0.720 V under alkaline and acidic conditions, respectively. As a result, the practical PEMFC equipped with 3D Mn-N_x/CS possesses an open circuit voltage above 0.94 V and a maximum power density of 360 mW/cm², showing a potential application prospect.

Original language	English
Pages (from-to)	8432-8438
Number of pages	7
Journal	Energy and Fuels
Volume	36
Issue number	15
Early online date	15 Jul 2022
DOIs	https://doi.org/10.1021/acs.energyfuels.2c02061
Publication status	Published - 04 Aug 2022
Externally published	Yes

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© 2022 American Chemical Society. All rights reserved.

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology

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Cite this

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title = "Interconnected porous structural construction of Mn- and N-Doped carbon nanosheets for fuel cell application",

abstract = "The lack of a cost-effective oxygen reduction reaction (ORR) catalyst is the key technical issue that restricts the large-scale application of proton-exchange membrane fuel cells (PEMFCs). Transition metal-Nx/C has exhibited promising potential to replace the precious Pt-based catalyst, and Mn-Nx/C is becoming the research hotspot as a result of the Fenton-inert property of Mn. To further improve the ORR activity of the Mn-Nx/C catalyst, a three-dimensional (3D) interconnected porous structure is constructed in two-dimensional Mn- and N-doped carbon nanosheets via a {"}porogen-in-resin{"} strategy. In combination with a post-adsorption treatment, the so-called 3D Mn-Nx/CS catalyst exhibits great ORR catalytic activity and stability under both acidic and alkaline conditions. The half-wave potential (E1/2) of 3D Mn-Nx/CS is high at 0.918 and 0.720 V under alkaline and acidic conditions, respectively. As a result, the practical PEMFC equipped with 3D Mn-Nx/CS possesses an open circuit voltage above 0.94 V and a maximum power density of 360 mW/cm2, showing a potential application prospect.",

author = "Jiawei Shi and Shibing Deng and Xinyue Hu and Xiujuan Sun and Shunfa Zhou and Liyuan Fan and Weiwei Cai and Jing Li",

year = "2022",

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doi = "10.1021/acs.energyfuels.2c02061",

language = "English",

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T1 - Interconnected porous structural construction of Mn- and N-Doped carbon nanosheets for fuel cell application

AU - Shi, Jiawei

AU - Deng, Shibing

AU - Hu, Xinyue

AU - Sun, Xiujuan

AU - Zhou, Shunfa

AU - Fan, Liyuan

AU - Cai, Weiwei

AU - Li, Jing

PY - 2022/8/4

Y1 - 2022/8/4

N2 - The lack of a cost-effective oxygen reduction reaction (ORR) catalyst is the key technical issue that restricts the large-scale application of proton-exchange membrane fuel cells (PEMFCs). Transition metal-Nx/C has exhibited promising potential to replace the precious Pt-based catalyst, and Mn-Nx/C is becoming the research hotspot as a result of the Fenton-inert property of Mn. To further improve the ORR activity of the Mn-Nx/C catalyst, a three-dimensional (3D) interconnected porous structure is constructed in two-dimensional Mn- and N-doped carbon nanosheets via a "porogen-in-resin" strategy. In combination with a post-adsorption treatment, the so-called 3D Mn-Nx/CS catalyst exhibits great ORR catalytic activity and stability under both acidic and alkaline conditions. The half-wave potential (E1/2) of 3D Mn-Nx/CS is high at 0.918 and 0.720 V under alkaline and acidic conditions, respectively. As a result, the practical PEMFC equipped with 3D Mn-Nx/CS possesses an open circuit voltage above 0.94 V and a maximum power density of 360 mW/cm2, showing a potential application prospect.

AB - The lack of a cost-effective oxygen reduction reaction (ORR) catalyst is the key technical issue that restricts the large-scale application of proton-exchange membrane fuel cells (PEMFCs). Transition metal-Nx/C has exhibited promising potential to replace the precious Pt-based catalyst, and Mn-Nx/C is becoming the research hotspot as a result of the Fenton-inert property of Mn. To further improve the ORR activity of the Mn-Nx/C catalyst, a three-dimensional (3D) interconnected porous structure is constructed in two-dimensional Mn- and N-doped carbon nanosheets via a "porogen-in-resin" strategy. In combination with a post-adsorption treatment, the so-called 3D Mn-Nx/CS catalyst exhibits great ORR catalytic activity and stability under both acidic and alkaline conditions. The half-wave potential (E1/2) of 3D Mn-Nx/CS is high at 0.918 and 0.720 V under alkaline and acidic conditions, respectively. As a result, the practical PEMFC equipped with 3D Mn-Nx/CS possesses an open circuit voltage above 0.94 V and a maximum power density of 360 mW/cm2, showing a potential application prospect.

U2 - 10.1021/acs.energyfuels.2c02061

DO - 10.1021/acs.energyfuels.2c02061

M3 - Article

AN - SCOPUS:85135518323

SN - 0887-0624

VL - 36

SP - 8432

EP - 8438

JO - Energy and Fuels

JF - Energy and Fuels

IS - 15

ER -

Interconnected porous structural construction of Mn- and N-Doped carbon nanosheets for fuel cell application

Abstract

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