An efficient and durable trifunctional electrocatalyst for zinc–air batteries driven overall water splitting

Natarajan Logeshwaran; Shanmugam  Ramakrishnan; Selvaraj Selva  Chandrasekaran; Vinothkannan Mohanraj; Ae Rhan Kim; Sivaprakash Sengodan; Dhinesh Babu  Velusamy; Purushothaman  Varadhan; Jr-Hau  He; Dong Jin Yoo

doi:10.1016/j.apcatb.2021.120405

An efficient and durable trifunctional electrocatalyst for zinc–air batteries driven overall water splitting

Natarajan Logeshwaran, Shanmugam Ramakrishnan, Selvaraj Selva Chandrasekaran, Vinothkannan Mohanraj, Ae Rhan Kim, Sivaprakash Sengodan, Dhinesh Babu Velusamy, Purushothaman Varadhan, Jr-Hau He, Dong Jin Yoo

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

153 Citations (Scopus)

Abstract

Constructing more active and durable trifunctional electrocatalysts is key for boosting overall water splitting and metal–air battery efficiency. Herein, we developed a trifunctional electrocatalyst of ultrafine Pt nanoparticles anchored on CoS ₂-N-doped reduced graphene oxide (Pt@CoS ₂-NrGO). Owing to its more Pt active sites with rapid ion/electron transport ability, the Pt@CoS ₂-NrGO shows excellent trifunctional activities towards HER (ƞ ₁₀ = 39 mV), OER (ƞ ₁₀ = 235 mV) ORR (E _1/2 = 0.85 V vs. RHE) and water splitting device of Pt@CoS ₂-NrGO||Pt@CoS ₂-NrGO achieved cell voltage of 1.48 V at 10 mA cm ⁻², which is better than Pt-C||RuO ₂. Finally, we employed Pt@CoS ₂-NrGO as air cathode for zinc–air battery to display a power density of 114 mW cm ^-2 and durability of 55 h, outperforming than Pt-C + RuO ₂ based zinc–air batteries. For practical aspects, Pt@CoS ₂-NrGO based zinc–air batteries were connected to overall water splitting device to produce H ₂ and O ₂ gases for hydrogen fuel cell.

Original language	English
Article number	120405
Journal	Applied Catalysis B: Environmental
Volume	297
Early online date	1 Jun 2021
DOIs	https://doi.org/10.1016/j.apcatb.2021.120405
Publication status	Published - 15 Nov 2021
Externally published	Yes

Bibliographical note

Funder

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science , ICT and Future Planning (NRF- 2020R1A2B5B01001458 ). This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20184030202210 ).

Funding

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science , ICT and Future Planning (NRF- 2020R1A2B5B01001458 ). This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20184030202210 ).

Funders	Funder number
Ministry of Trade, Industry and Energy	20184030202210
Ministry of Science and ICT	NRF- 2020R1A2B5B01001458
National Research Foundation of Korea
Korea Institute of Energy Technology Evaluation and Planning

Keywords

Density functional theory
Overall water splitting
Pt@CoS -NrGO
Trifunctional electrocatalyst
Zinc–air battery

ASJC Scopus subject areas

General Environmental Science
Process Chemistry and Technology
Catalysis

UN SDGs

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

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10.1016/j.apcatb.2021.120405

Cite this

Logeshwaran, N., Ramakrishnan, S., Chandrasekaran, S. S., Mohanraj, V., Kim, A. R., Sengodan, S., Velusamy, D. B., Varadhan, P., He, J.-H., & Yoo, D. J. (2021). An efficient and durable trifunctional electrocatalyst for zinc–air batteries driven overall water splitting. Applied Catalysis B: Environmental, 297, Article 120405. https://doi.org/10.1016/j.apcatb.2021.120405

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abstract = "Constructing more active and durable trifunctional electrocatalysts is key for boosting overall water splitting and metal–air battery efficiency. Herein, we developed a trifunctional electrocatalyst of ultrafine Pt nanoparticles anchored on CoS 2-N-doped reduced graphene oxide (Pt@CoS 2-NrGO). Owing to its more Pt active sites with rapid ion/electron transport ability, the Pt@CoS 2-NrGO shows excellent trifunctional activities towards HER (ƞ 10 = 39 mV), OER (ƞ 10 = 235 mV) ORR (E 1/2 = 0.85 V vs. RHE) and water splitting device of Pt@CoS 2-NrGO||Pt@CoS 2-NrGO achieved cell voltage of 1.48 V at 10 mA cm −2, which is better than Pt-C||RuO 2. Finally, we employed Pt@CoS 2-NrGO as air cathode for zinc–air battery to display a power density of 114 mW cm -2 and durability of 55 h, outperforming than Pt-C + RuO 2 based zinc–air batteries. For practical aspects, Pt@CoS 2-NrGO based zinc–air batteries were connected to overall water splitting device to produce H 2 and O 2 gases for hydrogen fuel cell.",

keywords = "Density functional theory, Overall water splitting, Pt@CoS -NrGO, Trifunctional electrocatalyst, Zinc–air battery",

author = "Natarajan Logeshwaran and Shanmugam Ramakrishnan and Chandrasekaran, {Selvaraj Selva} and Vinothkannan Mohanraj and Kim, {Ae Rhan} and Sivaprakash Sengodan and Velusamy, {Dhinesh Babu} and Purushothaman Varadhan and Jr-Hau He and Yoo, {Dong Jin}",

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T1 - An efficient and durable trifunctional electrocatalyst for zinc–air batteries driven overall water splitting

AU - Logeshwaran, Natarajan

AU - Ramakrishnan, Shanmugam

AU - Chandrasekaran, Selvaraj Selva

AU - Mohanraj, Vinothkannan

AU - Kim, Ae Rhan

AU - Sengodan, Sivaprakash

AU - Velusamy, Dhinesh Babu

AU - Varadhan, Purushothaman

AU - He, Jr-Hau

AU - Yoo, Dong Jin

PY - 2021/11/15

Y1 - 2021/11/15

N2 - Constructing more active and durable trifunctional electrocatalysts is key for boosting overall water splitting and metal–air battery efficiency. Herein, we developed a trifunctional electrocatalyst of ultrafine Pt nanoparticles anchored on CoS 2-N-doped reduced graphene oxide (Pt@CoS 2-NrGO). Owing to its more Pt active sites with rapid ion/electron transport ability, the Pt@CoS 2-NrGO shows excellent trifunctional activities towards HER (ƞ 10 = 39 mV), OER (ƞ 10 = 235 mV) ORR (E 1/2 = 0.85 V vs. RHE) and water splitting device of Pt@CoS 2-NrGO||Pt@CoS 2-NrGO achieved cell voltage of 1.48 V at 10 mA cm −2, which is better than Pt-C||RuO 2. Finally, we employed Pt@CoS 2-NrGO as air cathode for zinc–air battery to display a power density of 114 mW cm -2 and durability of 55 h, outperforming than Pt-C + RuO 2 based zinc–air batteries. For practical aspects, Pt@CoS 2-NrGO based zinc–air batteries were connected to overall water splitting device to produce H 2 and O 2 gases for hydrogen fuel cell.

AB - Constructing more active and durable trifunctional electrocatalysts is key for boosting overall water splitting and metal–air battery efficiency. Herein, we developed a trifunctional electrocatalyst of ultrafine Pt nanoparticles anchored on CoS 2-N-doped reduced graphene oxide (Pt@CoS 2-NrGO). Owing to its more Pt active sites with rapid ion/electron transport ability, the Pt@CoS 2-NrGO shows excellent trifunctional activities towards HER (ƞ 10 = 39 mV), OER (ƞ 10 = 235 mV) ORR (E 1/2 = 0.85 V vs. RHE) and water splitting device of Pt@CoS 2-NrGO||Pt@CoS 2-NrGO achieved cell voltage of 1.48 V at 10 mA cm −2, which is better than Pt-C||RuO 2. Finally, we employed Pt@CoS 2-NrGO as air cathode for zinc–air battery to display a power density of 114 mW cm -2 and durability of 55 h, outperforming than Pt-C + RuO 2 based zinc–air batteries. For practical aspects, Pt@CoS 2-NrGO based zinc–air batteries were connected to overall water splitting device to produce H 2 and O 2 gases for hydrogen fuel cell.

KW - Density functional theory

KW - Overall water splitting

KW - Pt@CoS -NrGO

KW - Trifunctional electrocatalyst

KW - Zinc–air battery

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JF - Applied Catalysis B: Environmental

M1 - 120405

ER -

An efficient and durable trifunctional electrocatalyst for zinc–air batteries driven overall water splitting

Abstract

Bibliographical note

Funder

Funding

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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