Modulating the HER-overpotential at the interface of nanostructured MoS2 synthesized via hydrothermal route: An in-situ mass-spectroscopy approach

Dante Esaí González-Anota; Eleazar Castañeda-Morales; Silvia Patricia Paredes-Carrera; Arturo Manzo-Robledo

doi:10.1016/j.ijhydene.2023.01.288

Modulating the HER-overpotential at the interface of nanostructured MoS₂ synthesized via hydrothermal route: An in-situ mass-spectroscopy approach

Dante Esaí González-Anota, Eleazar Castañeda-Morales, Silvia Patricia Paredes-Carrera, Arturo Manzo-Robledo

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

5 Scopus citations

Abstract

Hydrogen evolution reaction (HER) using a new exfoliated in-situ and amine-functionalized MoS₂ prepared via a hydrothermal method, assisted with sonication treatment, is reported. Techniques such as XRD, RAMAN, FTIR, XPS, N₂-physisorption and HRTEM, confirmed the production of different MoS₂ samples. Depending on the material, the overpotential for HER was modified; this was also observed for selected samples concerning the acid solution (HNO₃, H₂SO₄, HCl, and HClO₄), as demonstrated using linear sweep voltammetry and Tafel approach. The faradic current observed was in the order I_HCLO4 > I_HCl > I_H2SO4 > I_HNO3; whereas the charge-transfer resistance (ohms) was R_HNO3 (29816) > R_H2SO4 (311.5) > R_HCl (167.7) > R_HCLO4 (167.7). It was found (using DEMS) that protons (m/z = 1) modulated the generation of hydrogen (m/z = 2) at H₂SO₄, HCl, and HClO₄ solutions; conversely, at HNO₃ electrolyte, the reduction of NO₃⁻ to nitrogen was activated, delaying HER-kinetic.

Original language	English
Pages (from-to)	17852-17867
Number of pages	16
Journal	International Journal of Hydrogen Energy
Volume	48
Issue number	47
DOIs	https://doi.org/10.1016/j.ijhydene.2023.01.288
State	Published - 1 Jun 2023
Externally published	Yes

Keywords

Electrocatalysis
HER-DEMS
Molybdenum disulfide
Selectivity-conversion
Ultrasonic-exfoliation

UN SDGs

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

Access to Document

10.1016/j.ijhydene.2023.01.288

Cite this

@article{bd667f1cdcb748acadbfb93043abd1af,

title = "Modulating the HER-overpotential at the interface of nanostructured MoS2 synthesized via hydrothermal route: An in-situ mass-spectroscopy approach",

abstract = "Hydrogen evolution reaction (HER) using a new exfoliated in-situ and amine-functionalized MoS2 prepared via a hydrothermal method, assisted with sonication treatment, is reported. Techniques such as XRD, RAMAN, FTIR, XPS, N2-physisorption and HRTEM, confirmed the production of different MoS2 samples. Depending on the material, the overpotential for HER was modified; this was also observed for selected samples concerning the acid solution (HNO3, H2SO4, HCl, and HClO4), as demonstrated using linear sweep voltammetry and Tafel approach. The faradic current observed was in the order IHCLO4 > IHCl > IH2SO4 > IHNO3; whereas the charge-transfer resistance (ohms) was RHNO3 (29816) > RH2SO4 (311.5) > RHCl (167.7) > RHCLO4 (167.7). It was found (using DEMS) that protons (m/z = 1) modulated the generation of hydrogen (m/z = 2) at H2SO4, HCl, and HClO4 solutions; conversely, at HNO3 electrolyte, the reduction of NO3− to nitrogen was activated, delaying HER-kinetic.",

keywords = "Electrocatalysis, HER-DEMS, Molybdenum disulfide, Selectivity-conversion, Ultrasonic-exfoliation",

author = "Gonz{\'a}lez-Anota, {Dante Esa{\'i}} and Eleazar Casta{\~n}eda-Morales and Paredes-Carrera, {Silvia Patricia} and Arturo Manzo-Robledo",

note = "Publisher Copyright: {\textcopyright} 2023 Hydrogen Energy Publications LLC",

year = "2023",

month = jun,

day = "1",

doi = "10.1016/j.ijhydene.2023.01.288",

language = "Ingl{\'e}s",

volume = "48",

pages = "17852--17867",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

number = "47",

}

Modulating the HER-overpotential at the interface of nanostructured MoS₂ synthesized via hydrothermal route: An in-situ mass-spectroscopy approach. / González-Anota, Dante Esaí; Castañeda-Morales, Eleazar; Paredes-Carrera, Silvia Patricia et al.
In: International Journal of Hydrogen Energy, Vol. 48, No. 47, 01.06.2023, p. 17852-17867.

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

TY - JOUR

T1 - Modulating the HER-overpotential at the interface of nanostructured MoS2 synthesized via hydrothermal route

T2 - An in-situ mass-spectroscopy approach

AU - González-Anota, Dante Esaí

AU - Castañeda-Morales, Eleazar

AU - Paredes-Carrera, Silvia Patricia

AU - Manzo-Robledo, Arturo

PY - 2023/6/1

Y1 - 2023/6/1

N2 - Hydrogen evolution reaction (HER) using a new exfoliated in-situ and amine-functionalized MoS2 prepared via a hydrothermal method, assisted with sonication treatment, is reported. Techniques such as XRD, RAMAN, FTIR, XPS, N2-physisorption and HRTEM, confirmed the production of different MoS2 samples. Depending on the material, the overpotential for HER was modified; this was also observed for selected samples concerning the acid solution (HNO3, H2SO4, HCl, and HClO4), as demonstrated using linear sweep voltammetry and Tafel approach. The faradic current observed was in the order IHCLO4 > IHCl > IH2SO4 > IHNO3; whereas the charge-transfer resistance (ohms) was RHNO3 (29816) > RH2SO4 (311.5) > RHCl (167.7) > RHCLO4 (167.7). It was found (using DEMS) that protons (m/z = 1) modulated the generation of hydrogen (m/z = 2) at H2SO4, HCl, and HClO4 solutions; conversely, at HNO3 electrolyte, the reduction of NO3− to nitrogen was activated, delaying HER-kinetic.

AB - Hydrogen evolution reaction (HER) using a new exfoliated in-situ and amine-functionalized MoS2 prepared via a hydrothermal method, assisted with sonication treatment, is reported. Techniques such as XRD, RAMAN, FTIR, XPS, N2-physisorption and HRTEM, confirmed the production of different MoS2 samples. Depending on the material, the overpotential for HER was modified; this was also observed for selected samples concerning the acid solution (HNO3, H2SO4, HCl, and HClO4), as demonstrated using linear sweep voltammetry and Tafel approach. The faradic current observed was in the order IHCLO4 > IHCl > IH2SO4 > IHNO3; whereas the charge-transfer resistance (ohms) was RHNO3 (29816) > RH2SO4 (311.5) > RHCl (167.7) > RHCLO4 (167.7). It was found (using DEMS) that protons (m/z = 1) modulated the generation of hydrogen (m/z = 2) at H2SO4, HCl, and HClO4 solutions; conversely, at HNO3 electrolyte, the reduction of NO3− to nitrogen was activated, delaying HER-kinetic.

KW - Electrocatalysis

KW - HER-DEMS

KW - Molybdenum disulfide

KW - Selectivity-conversion

KW - Ultrasonic-exfoliation

UR - http://www.scopus.com/inward/record.url?scp=85148768634&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2023.01.288

DO - 10.1016/j.ijhydene.2023.01.288

M3 - Artículo

AN - SCOPUS:85148768634

SN - 0360-3199

VL - 48

SP - 17852

EP - 17867

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 47

ER -