Nitrogen-rich two-dimensional porous polybenzimidazole network as a durable metal-free electrocatalyst for a cobalt reduction reaction in organic dye-sensitized solar cells

Seo Yoon Bae; Do Hyung Kweon; Javeed Mahmood; Min Jung Kim; Soo Young Yu; Sun Min Jung; Sun Hee Shin; Myung Jong Ju; Jong Beom Baek

doi:10.1016/j.nanoen.2017.03.023

Nitrogen-rich two-dimensional porous polybenzimidazole network as a durable metal-free electrocatalyst for a cobalt reduction reaction in organic dye-sensitized solar cells

Seo Yoon Bae, Do Hyung Kweon, Javeed Mahmood, Min Jung Kim, Soo Young Yu, Sun Min Jung, Sun Hee Shin, Myung Jong Ju, Jong Beom Baek

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

10 Scopus citations

Abstract

Nitrogen-enriched two-dimensional (2D) porous polybenzimidazole (2D-HPBI) network was synthesized from the reaction between 1,2,4,5-tetraaminobenzene (TAB) and benzene-1,3,5-tricarboxylic acid (BTA) in polyphosphoric acid (PPA) medium. Interestingly, the remnant terminal groups such as amine and carboxyl groups at the periphery of 2D-HPBI were selectively stripped off by heat-treatment at 470 °C. The resultant heat-treated 2D-HPBI (HT-HPBI) displayed substantially improved electrical conductivity and thus outstanding performance as the counter electrode (CE) for the cobalt reduction reaction (CRR) in dye-sensitized solar cells (DSSCs). The charge-transfer resistance (Rct=0.51 Ω cm2) at the HT-HPBI-CE/electrolyte interface was even lower than that of Pt-CE (1.09 Ω cm2). More importantly, HT-HPBI-based CE showed near “zero” loss of electrochemical stability (1/Rct) even after 1000 potential cycles, while the 1/Rct of Pt decreased to

Original language	English (US)
Pages (from-to)	533-540
Number of pages	8
Journal	Nano Energy
Volume	34
DOIs	https://doi.org/10.1016/j.nanoen.2017.03.023
State	Published - Apr 1 2017
Externally published	Yes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-23

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.nanoen.2017.03.023

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title = "Nitrogen-rich two-dimensional porous polybenzimidazole network as a durable metal-free electrocatalyst for a cobalt reduction reaction in organic dye-sensitized solar cells",

abstract = "Nitrogen-enriched two-dimensional (2D) porous polybenzimidazole (2D-HPBI) network was synthesized from the reaction between 1,2,4,5-tetraaminobenzene (TAB) and benzene-1,3,5-tricarboxylic acid (BTA) in polyphosphoric acid (PPA) medium. Interestingly, the remnant terminal groups such as amine and carboxyl groups at the periphery of 2D-HPBI were selectively stripped off by heat-treatment at 470 °C. The resultant heat-treated 2D-HPBI (HT-HPBI) displayed substantially improved electrical conductivity and thus outstanding performance as the counter electrode (CE) for the cobalt reduction reaction (CRR) in dye-sensitized solar cells (DSSCs). The charge-transfer resistance (Rct=0.51 Ω cm2) at the HT-HPBI-CE/electrolyte interface was even lower than that of Pt-CE (1.09 Ω cm2). More importantly, HT-HPBI-based CE showed near “zero” loss of electrochemical stability (1/Rct) even after 1000 potential cycles, while the 1/Rct of Pt decreased to",

author = "Bae, {Seo Yoon} and Kweon, {Do Hyung} and Javeed Mahmood and Kim, {Min Jung} and Yu, {Soo Young} and Jung, {Sun Min} and Shin, {Sun Hee} and Ju, {Myung Jong} and Baek, {Jong Beom}",

note = "Generated from Scopus record by KAUST IRTS on 2023-09-23",

year = "2017",

month = apr,

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doi = "10.1016/j.nanoen.2017.03.023",

language = "English (US)",

volume = "34",

pages = "533--540",

journal = "Nano Energy",

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TY - JOUR

T1 - Nitrogen-rich two-dimensional porous polybenzimidazole network as a durable metal-free electrocatalyst for a cobalt reduction reaction in organic dye-sensitized solar cells

AU - Bae, Seo Yoon

AU - Kweon, Do Hyung

AU - Mahmood, Javeed

AU - Kim, Min Jung

AU - Yu, Soo Young

AU - Jung, Sun Min

AU - Shin, Sun Hee

AU - Ju, Myung Jong

AU - Baek, Jong Beom

N1 - Generated from Scopus record by KAUST IRTS on 2023-09-23

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Nitrogen-enriched two-dimensional (2D) porous polybenzimidazole (2D-HPBI) network was synthesized from the reaction between 1,2,4,5-tetraaminobenzene (TAB) and benzene-1,3,5-tricarboxylic acid (BTA) in polyphosphoric acid (PPA) medium. Interestingly, the remnant terminal groups such as amine and carboxyl groups at the periphery of 2D-HPBI were selectively stripped off by heat-treatment at 470 °C. The resultant heat-treated 2D-HPBI (HT-HPBI) displayed substantially improved electrical conductivity and thus outstanding performance as the counter electrode (CE) for the cobalt reduction reaction (CRR) in dye-sensitized solar cells (DSSCs). The charge-transfer resistance (Rct=0.51 Ω cm2) at the HT-HPBI-CE/electrolyte interface was even lower than that of Pt-CE (1.09 Ω cm2). More importantly, HT-HPBI-based CE showed near “zero” loss of electrochemical stability (1/Rct) even after 1000 potential cycles, while the 1/Rct of Pt decreased to

AB - Nitrogen-enriched two-dimensional (2D) porous polybenzimidazole (2D-HPBI) network was synthesized from the reaction between 1,2,4,5-tetraaminobenzene (TAB) and benzene-1,3,5-tricarboxylic acid (BTA) in polyphosphoric acid (PPA) medium. Interestingly, the remnant terminal groups such as amine and carboxyl groups at the periphery of 2D-HPBI were selectively stripped off by heat-treatment at 470 °C. The resultant heat-treated 2D-HPBI (HT-HPBI) displayed substantially improved electrical conductivity and thus outstanding performance as the counter electrode (CE) for the cobalt reduction reaction (CRR) in dye-sensitized solar cells (DSSCs). The charge-transfer resistance (Rct=0.51 Ω cm2) at the HT-HPBI-CE/electrolyte interface was even lower than that of Pt-CE (1.09 Ω cm2). More importantly, HT-HPBI-based CE showed near “zero” loss of electrochemical stability (1/Rct) even after 1000 potential cycles, while the 1/Rct of Pt decreased to

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DO - 10.1016/j.nanoen.2017.03.023

M3 - Article

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JO - Nano Energy

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ER -

Nitrogen-rich two-dimensional porous polybenzimidazole network as a durable metal-free electrocatalyst for a cobalt reduction reaction in organic dye-sensitized solar cells

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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