Exploration of cobalt phosphate as a potential catalyst for rechargeable aqueous sodium-air battery

Baskar Senthilkumar; Ziyauddin Khan; Sangmin Park; Inseok Seo; Hyunhyub Ko; Youngsik Kim

doi:10.1016/j.jpowsour.2016.02.022

Exploration of cobalt phosphate as a potential catalyst for rechargeable aqueous sodium-air battery

Baskar Senthilkumar
, Ziyauddin Khan
, Sangmin Park
, Inseok Seo^*
, Hyunhyub Ko
, Youngsik Kim

^*Corresponding author for this work

Information Materials Engineering

Ulsan National Institute of Science and Technology
POSCO

Research output: Contribution to journal › Journal article › peer-review

79 Scopus citations

Abstract

Bifunctional catalysts are prominent to attain high capacity, maximum energy efficiency and long cycle-life for aqueous rechargeable Na-air batteries. In this work, we report the synthesis of bi-functional noble metal free, Co₃(PO₄)₂ nanostructures by facile precipitation technique and evaluated its electrocatalytic activity. Co₃(PO₄)₂ nanostructure was investigated as a potential electrocatalyst for rechargeable aqueous Na-air battery for the first time. The synthesized Co₃(PO₄)₂ grain-like nanostructures showed better oxygen evolution activity compared to Pt/C catalyst. The fabricated Na-air battery with the Co₃(PO₄)₂ catalyst as air-cathode delivered low overpotential and its round trip energy efficiency reached up to 83%. The Na-air battery exhibited stable cycle performance up to 50 cycles.

Original language	English
Pages (from-to)	29-34
Number of pages	6
Journal	Journal of Power Sources
Volume	311
DOIs	https://doi.org/10.1016/j.jpowsour.2016.02.022
State	Published - 2016.04.15

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Aqueous electrolyte
Cobalt phosphate
Electrocatalyst
Sodium super ionic conductor
Sodium-air battery

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10.1016/j.jpowsour.2016.02.022

Cite this

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title = "Exploration of cobalt phosphate as a potential catalyst for rechargeable aqueous sodium-air battery",

abstract = "Bifunctional catalysts are prominent to attain high capacity, maximum energy efficiency and long cycle-life for aqueous rechargeable Na-air batteries. In this work, we report the synthesis of bi-functional noble metal free, Co3(PO4)2 nanostructures by facile precipitation technique and evaluated its electrocatalytic activity. Co3(PO4)2 nanostructure was investigated as a potential electrocatalyst for rechargeable aqueous Na-air battery for the first time. The synthesized Co3(PO4)2 grain-like nanostructures showed better oxygen evolution activity compared to Pt/C catalyst. The fabricated Na-air battery with the Co3(PO4)2 catalyst as air-cathode delivered low overpotential and its round trip energy efficiency reached up to 83\%. The Na-air battery exhibited stable cycle performance up to 50 cycles.",

keywords = "Aqueous electrolyte, Cobalt phosphate, Electrocatalyst, Sodium super ionic conductor, Sodium-air battery",

author = "Baskar Senthilkumar and Ziyauddin Khan and Sangmin Park and Inseok Seo and Hyunhyub Ko and Youngsik Kim",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

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day = "15",

doi = "10.1016/j.jpowsour.2016.02.022",

language = "English",

volume = "311",

pages = "29--34",

journal = "Journal of Power Sources",

issn = "0378-7753",

}

TY - JOUR

T1 - Exploration of cobalt phosphate as a potential catalyst for rechargeable aqueous sodium-air battery

AU - Senthilkumar, Baskar

AU - Khan, Ziyauddin

AU - Park, Sangmin

AU - Seo, Inseok

AU - Ko, Hyunhyub

AU - Kim, Youngsik

PY - 2016/4/15

Y1 - 2016/4/15

N2 - Bifunctional catalysts are prominent to attain high capacity, maximum energy efficiency and long cycle-life for aqueous rechargeable Na-air batteries. In this work, we report the synthesis of bi-functional noble metal free, Co3(PO4)2 nanostructures by facile precipitation technique and evaluated its electrocatalytic activity. Co3(PO4)2 nanostructure was investigated as a potential electrocatalyst for rechargeable aqueous Na-air battery for the first time. The synthesized Co3(PO4)2 grain-like nanostructures showed better oxygen evolution activity compared to Pt/C catalyst. The fabricated Na-air battery with the Co3(PO4)2 catalyst as air-cathode delivered low overpotential and its round trip energy efficiency reached up to 83%. The Na-air battery exhibited stable cycle performance up to 50 cycles.

AB - Bifunctional catalysts are prominent to attain high capacity, maximum energy efficiency and long cycle-life for aqueous rechargeable Na-air batteries. In this work, we report the synthesis of bi-functional noble metal free, Co3(PO4)2 nanostructures by facile precipitation technique and evaluated its electrocatalytic activity. Co3(PO4)2 nanostructure was investigated as a potential electrocatalyst for rechargeable aqueous Na-air battery for the first time. The synthesized Co3(PO4)2 grain-like nanostructures showed better oxygen evolution activity compared to Pt/C catalyst. The fabricated Na-air battery with the Co3(PO4)2 catalyst as air-cathode delivered low overpotential and its round trip energy efficiency reached up to 83%. The Na-air battery exhibited stable cycle performance up to 50 cycles.

KW - Aqueous electrolyte

KW - Cobalt phosphate

KW - Electrocatalyst

KW - Sodium super ionic conductor

KW - Sodium-air battery

UR - https://www.scopus.com/pages/publications/84958178739

U2 - 10.1016/j.jpowsour.2016.02.022

DO - 10.1016/j.jpowsour.2016.02.022

M3 - Journal article

AN - SCOPUS:84958178739

SN - 0378-7753

VL - 311

SP - 29

EP - 34

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Exploration of cobalt phosphate as a potential catalyst for rechargeable aqueous sodium-air battery

Abstract

UN SDGs

Keywords

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