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Author:

Sultana, Fozia (Sultana, Fozia.) | Mushtaq, Muhammad (Mushtaq, Muhammad.) | Wang, Jiahui (Wang, Jiahui.) | Althubeiti, Khaled (Althubeiti, Khaled.) | Zaman, Abid (Zaman, Abid.) | Kalsoom Rais, Aisha (Kalsoom Rais, Aisha.) | Ali, Asad (Ali, Asad.) | Yang, Qing (Yang, Qing.)

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EI Scopus SCIE

Abstract:

The electrocatalytic hydrogen evolution reaction (HER) is a sustainable energy production route using green chemistry. Transition metal dichalcogenides' application in catalytic hydrogen production is limited due to a lack of solutions that simultaneously address intrinsic activity, increased surface area, electrical conductivity, and stability problems. Herein we address these issues simultaneously by modifying the electronic structure of molybdenum disulfide (MoS2) nanorods using a low content of Pd (1 wt% and 2 wt%) dopant via a facile colloidal solvothermal route. The resulting MoS2 nanorods doped with (1 and 2 wt%) palladium demonstrate current density of 100 mA/cm2 at quit lower over-potentials of 137 mV and 119 mV than 273 mV for pure MoS2 nanorods, accompanied by high stability. This research proposes a strategy for designing high-performance HER electrocatalysts that work in acidic medium. In addition, the Tafel slop calculated for MoS2 is 112 mV/dec whereas for 1 and 2 wt% Pd-MoS2, the Tafel slopes are 70 mV/dec and 46 mV/dec. © 2022 The Authors

Keyword:

Electric conductivity Hydrogen production Catalyst activity Electrocatalysts Nanorods Layered semiconductors Palladium compounds Electrocatalysis Electronic structure Molybdenum compounds Palladium Sulfur compounds

Author Community:

  • [ 1 ] [Sultana, Fozia]Hefei National Laboratory of Physical Sciences at the Microscale (HFNL), Department of Chemistry, Laboratory of Nanomaterial's for Energy Conversion (LNEC), University of Science and Technology China, Hefei; Anhui; 230026, China
  • [ 2 ] [Mushtaq, Muhammad]School of Material Science and Engineering, Beijing University of Technology, Beijing, China
  • [ 3 ] [Wang, Jiahui]Hefei National Laboratory of Physical Sciences at the Microscale (HFNL), Department of Chemistry, Laboratory of Nanomaterial's for Energy Conversion (LNEC), University of Science and Technology China, Hefei; Anhui; 230026, China
  • [ 4 ] [Althubeiti, Khaled]Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif; 21944, Saudi Arabia
  • [ 5 ] [Zaman, Abid]Department of Physics, Riphah International University, Islamabad; 44000, Pakistan
  • [ 6 ] [Kalsoom Rais, Aisha]Department of Chemistry, Abdul Wali Khan University, Mardan, Pakistan
  • [ 7 ] [Ali, Asad]Department of Physics, Riphah International University, Islamabad; 44000, Pakistan
  • [ 8 ] [Yang, Qing]Hefei National Laboratory of Physical Sciences at the Microscale (HFNL), Department of Chemistry, Laboratory of Nanomaterial's for Energy Conversion (LNEC), University of Science and Technology China, Hefei; Anhui; 230026, China

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Source :

Arabian Journal of Chemistry

ISSN: 1878-5352

Year: 2022

Issue: 5

Volume: 15

6 . 0

JCR@2022

6 . 0 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:53

JCR Journal Grade:2

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 16

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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