Co3Se4 nanosheets embedded on N-CNT as an efficient electroactive material for hydrogen evolution and supercapacitor applications

Ranjith Bose; Bebi Patil; Vasanth Rajendiran Jothi; Tae Hyun Kim; Paulraj Arunkumar; Heejoon Ahn; Sung Chul Yi

doi:10.1016/j.jiec.2018.04.013

Co₃Se₄ nanosheets embedded on N-CNT as an efficient electroactive material for hydrogen evolution and supercapacitor applications

Ranjith Bose, Bebi Patil, Vasanth Rajendiran Jothi, Tae Hyun Kim, Paulraj Arunkumar, Heejoon Ahn, Sung Chul Yi

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

47 Scopus citations

Abstract

Co₃Se₄ on nitrogen doped carbon nanotube (N-CNT) with applications for supercapacitor and hydrogen evolution reaction (HER) is synthesized by pyrolysis and solvothermal processes. The catalyst due to improved electrical conductivity and increased rate of removal of H₂ liberated, delivers a high HER activity, by reaching η₁₀ at 174 mV and 240 mV, Tafel slope of 73.2 and 43.8 mV dec⁻¹ in alkaline and acidic medium respectively. Co₃Se₄/N-CNT as supercapacitor electrodes, yields a capacitance of 114 F g⁻¹ at a 2 mV s⁻¹ scan rate, with an excellent capacitive retention of 96% of the initial capacitance after 5000 cycles.

Original language	British English
Pages (from-to)	62-71
Number of pages	10
Journal	Journal of Industrial and Engineering Chemistry
Volume	65
DOIs	https://doi.org/10.1016/j.jiec.2018.04.013
State	Published - 25 Sep 2018

Keywords

Carbon nanotubes
CoSe
Electrocatalyst
Hydrogen evolution
Supercapacitor

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title = "Co3Se4 nanosheets embedded on N-CNT as an efficient electroactive material for hydrogen evolution and supercapacitor applications",

abstract = "Co3Se4 on nitrogen doped carbon nanotube (N-CNT) with applications for supercapacitor and hydrogen evolution reaction (HER) is synthesized by pyrolysis and solvothermal processes. The catalyst due to improved electrical conductivity and increased rate of removal of H2 liberated, delivers a high HER activity, by reaching η10 at 174 mV and 240 mV, Tafel slope of 73.2 and 43.8 mV dec−1 in alkaline and acidic medium respectively. Co3Se4/N-CNT as supercapacitor electrodes, yields a capacitance of 114 F g−1 at a 2 mV s−1 scan rate, with an excellent capacitive retention of 96% of the initial capacitance after 5000 cycles.",

keywords = "Carbon nanotubes, CoSe, Electrocatalyst, Hydrogen evolution, Supercapacitor",

author = "Ranjith Bose and Bebi Patil and {Rajendiran Jothi}, Vasanth and Kim, {Tae Hyun} and Paulraj Arunkumar and Heejoon Ahn and Yi, {Sung Chul}",

note = "Funding Information: The authors acknowledge the financial support provided by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP, Grant No. 20173010032080 ) and a grant from Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( 2012R1A6A1029029 ). Funding Information: The authors acknowledge the financial support provided by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP, Grant No.20173010032080) and a grant from Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2012R1A6A1029029). Publisher Copyright: {\textcopyright} 2018 The Korean Society of Industrial and Engineering Chemistry",

year = "2018",

month = sep,

day = "25",

doi = "10.1016/j.jiec.2018.04.013",

language = "British English",

volume = "65",

pages = "62--71",

journal = "Journal of Industrial and Engineering Chemistry",

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T1 - Co3Se4 nanosheets embedded on N-CNT as an efficient electroactive material for hydrogen evolution and supercapacitor applications

AU - Bose, Ranjith

AU - Patil, Bebi

AU - Rajendiran Jothi, Vasanth

AU - Kim, Tae Hyun

AU - Arunkumar, Paulraj

AU - Ahn, Heejoon

AU - Yi, Sung Chul

N1 - Funding Information: The authors acknowledge the financial support provided by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP, Grant No. 20173010032080 ) and a grant from Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( 2012R1A6A1029029 ). Funding Information: The authors acknowledge the financial support provided by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP, Grant No.20173010032080) and a grant from Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2012R1A6A1029029). Publisher Copyright: © 2018 The Korean Society of Industrial and Engineering Chemistry

PY - 2018/9/25

Y1 - 2018/9/25

N2 - Co3Se4 on nitrogen doped carbon nanotube (N-CNT) with applications for supercapacitor and hydrogen evolution reaction (HER) is synthesized by pyrolysis and solvothermal processes. The catalyst due to improved electrical conductivity and increased rate of removal of H2 liberated, delivers a high HER activity, by reaching η10 at 174 mV and 240 mV, Tafel slope of 73.2 and 43.8 mV dec−1 in alkaline and acidic medium respectively. Co3Se4/N-CNT as supercapacitor electrodes, yields a capacitance of 114 F g−1 at a 2 mV s−1 scan rate, with an excellent capacitive retention of 96% of the initial capacitance after 5000 cycles.

AB - Co3Se4 on nitrogen doped carbon nanotube (N-CNT) with applications for supercapacitor and hydrogen evolution reaction (HER) is synthesized by pyrolysis and solvothermal processes. The catalyst due to improved electrical conductivity and increased rate of removal of H2 liberated, delivers a high HER activity, by reaching η10 at 174 mV and 240 mV, Tafel slope of 73.2 and 43.8 mV dec−1 in alkaline and acidic medium respectively. Co3Se4/N-CNT as supercapacitor electrodes, yields a capacitance of 114 F g−1 at a 2 mV s−1 scan rate, with an excellent capacitive retention of 96% of the initial capacitance after 5000 cycles.

KW - Carbon nanotubes

KW - CoSe

KW - Electrocatalyst

KW - Hydrogen evolution

KW - Supercapacitor

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DO - 10.1016/j.jiec.2018.04.013

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AN - SCOPUS:85046171622

SN - 1226-086X

VL - 65

SP - 62

EP - 71

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Co₃Se₄ nanosheets embedded on N-CNT as an efficient electroactive material for hydrogen evolution and supercapacitor applications

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