Fabrication of robust hydrogen evolution reaction electrocatalyst using ag2se by vacuum evaporation

Sajjad Hussain; Jinwoong Chae; Kamran Akbar; Dhanasekaran Vikraman; Linh Truong; Bilal Abbas Naqvi; Yawar Abbas; Hyun Seok Kim; Seung Hyun Chun; Gunn Kim; Jongwan Jung

doi:10.3390/nano9101460

Fabrication of robust hydrogen evolution reaction electrocatalyst using ag2se by vacuum evaporation

Sajjad Hussain, Jinwoong Chae, Kamran Akbar, Dhanasekaran Vikraman, Linh Truong, Bilal Abbas Naqvi, Yawar Abbas, Hyun Seok Kim, Seung Hyun Chun, Gunn Kim, Jongwan Jung

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

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Abstract

Much research has been done on reliable and low-cost electrocatalysts for hydrogen generation by water splitting. In this study, we synthesized thin films of silver selenide (Ag2Se) using a simple thermal evaporation route and demonstrated their electrocatalytic hydrogen evolution reaction (HER) activity. The Ag2Se catalysts show improved electrochemical surface area and good HER electrocatalytic behavior (367 mV overpotential @ 10 mA·cm−2, exchange current density: ~1.02 × 10−3 mA·cm−2, and Tafel slope: 53 mV·dec−1) in an acidic medium). The reliability was checked in 0.5 M sulfuric acid over 20 h. Our first-principles calculations show the optimal energy of hydrogen adsorption, which is consistent with experimental results. The works could be further extended for finding a new catalyst by associating the selenide, sulfide or telluride-based materials without complex catalyst synthesis procedures.

Original language	British English
Article number	1460
Journal	Nanomaterials
Volume	9
Issue number	10
DOIs	https://doi.org/10.3390/nano9101460
State	Published - Oct 2019

Keywords

Ag2Se
First-principle
HER
Thermal evaporation

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@article{9d808717e81e41f4893f62926df179a0,

title = "Fabrication of robust hydrogen evolution reaction electrocatalyst using ag2se by vacuum evaporation",

abstract = "Much research has been done on reliable and low-cost electrocatalysts for hydrogen generation by water splitting. In this study, we synthesized thin films of silver selenide (Ag2Se) using a simple thermal evaporation route and demonstrated their electrocatalytic hydrogen evolution reaction (HER) activity. The Ag2Se catalysts show improved electrochemical surface area and good HER electrocatalytic behavior (367 mV overpotential @ 10 mA·cm−2, exchange current density: ~1.02 × 10−3 mA·cm−2, and Tafel slope: 53 mV·dec−1) in an acidic medium). The reliability was checked in 0.5 M sulfuric acid over 20 h. Our first-principles calculations show the optimal energy of hydrogen adsorption, which is consistent with experimental results. The works could be further extended for finding a new catalyst by associating the selenide, sulfide or telluride-based materials without complex catalyst synthesis procedures.",

keywords = "Ag2Se, First-principle, HER, Thermal evaporation",

author = "Sajjad Hussain and Jinwoong Chae and Kamran Akbar and Dhanasekaran Vikraman and Linh Truong and Naqvi, {Bilal Abbas} and Yawar Abbas and Kim, {Hyun Seok} and Chun, {Seung Hyun} and Gunn Kim and Jongwan Jung",

note = "Funding Information: Funding: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education (2017R1C1B5076952, 2016M3A7B4909942, and 2016R1D1A1B01015047). GK and JC were supported by the Mid-career Research Program (Grant No. 2016R1A2B2016120) through the National Research Foundation by the Korea Government. Publisher Copyright: {\textcopyright} 2019 by the authors.",

year = "2019",

month = oct,

doi = "10.3390/nano9101460",

language = "British English",

volume = "9",

journal = "Nanomaterials",

issn = "2079-4991",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "10",

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TY - JOUR

T1 - Fabrication of robust hydrogen evolution reaction electrocatalyst using ag2se by vacuum evaporation

AU - Hussain, Sajjad

AU - Chae, Jinwoong

AU - Akbar, Kamran

AU - Vikraman, Dhanasekaran

AU - Truong, Linh

AU - Naqvi, Bilal Abbas

AU - Abbas, Yawar

AU - Kim, Hyun Seok

AU - Chun, Seung Hyun

AU - Kim, Gunn

AU - Jung, Jongwan

N1 - Funding Information: Funding: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education (2017R1C1B5076952, 2016M3A7B4909942, and 2016R1D1A1B01015047). GK and JC were supported by the Mid-career Research Program (Grant No. 2016R1A2B2016120) through the National Research Foundation by the Korea Government. Publisher Copyright: © 2019 by the authors.

PY - 2019/10

Y1 - 2019/10

N2 - Much research has been done on reliable and low-cost electrocatalysts for hydrogen generation by water splitting. In this study, we synthesized thin films of silver selenide (Ag2Se) using a simple thermal evaporation route and demonstrated their electrocatalytic hydrogen evolution reaction (HER) activity. The Ag2Se catalysts show improved electrochemical surface area and good HER electrocatalytic behavior (367 mV overpotential @ 10 mA·cm−2, exchange current density: ~1.02 × 10−3 mA·cm−2, and Tafel slope: 53 mV·dec−1) in an acidic medium). The reliability was checked in 0.5 M sulfuric acid over 20 h. Our first-principles calculations show the optimal energy of hydrogen adsorption, which is consistent with experimental results. The works could be further extended for finding a new catalyst by associating the selenide, sulfide or telluride-based materials without complex catalyst synthesis procedures.

AB - Much research has been done on reliable and low-cost electrocatalysts for hydrogen generation by water splitting. In this study, we synthesized thin films of silver selenide (Ag2Se) using a simple thermal evaporation route and demonstrated their electrocatalytic hydrogen evolution reaction (HER) activity. The Ag2Se catalysts show improved electrochemical surface area and good HER electrocatalytic behavior (367 mV overpotential @ 10 mA·cm−2, exchange current density: ~1.02 × 10−3 mA·cm−2, and Tafel slope: 53 mV·dec−1) in an acidic medium). The reliability was checked in 0.5 M sulfuric acid over 20 h. Our first-principles calculations show the optimal energy of hydrogen adsorption, which is consistent with experimental results. The works could be further extended for finding a new catalyst by associating the selenide, sulfide or telluride-based materials without complex catalyst synthesis procedures.

KW - Ag2Se

KW - First-principle

KW - HER

KW - Thermal evaporation

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U2 - 10.3390/nano9101460

DO - 10.3390/nano9101460

M3 - Article

AN - SCOPUS:85074070115

SN - 2079-4991

VL - 9

JO - Nanomaterials

JF - Nanomaterials

IS - 10

M1 - 1460

ER -

Fabrication of robust hydrogen evolution reaction electrocatalyst using ag2se by vacuum evaporation

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Keywords

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