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

144 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 ).

Keywords

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

ASJC Scopus subject areas

Environmental Science(all)
Process Chemistry and Technology
Catalysis

UN SDGs

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

Access to Document

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

@article{445849fd59214487bf451a7d6cee991d,

title = "An efficient and durable trifunctional electrocatalyst for zinc–air batteries driven overall water splitting",

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}",

note = "{\textcopyright}2021PublishedbyElsevierB.V.",

year = "2021",

month = nov,

day = "15",

doi = "10.1016/j.apcatb.2021.120405",

language = "English",

volume = "297",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier",

}

TY - JOUR

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

UR - http://dx.doi.org/10.1016/j.apcatb.2021.120405

UR - http://www.scopus.com/inward/record.url?scp=85107442892&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2021.120405

DO - 10.1016/j.apcatb.2021.120405

M3 - Article

SN - 0926-3373

VL - 297

JO - Applied Catalysis B: Environmental

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

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this