Work

Graphene nanosheets decorated with heterostructured ruthenium sulfide as catalyst for enhanced hydrogen evolution reaction

Year: 2024

Type: article

Abstract: In present findings, a simple pyrolysis technique was applied to decorate S and N doped graphene with RuS2-CoO nanoparticles synthesizing a heterostructured nanocomposite RuS2-CoO@SNG. XPS results demonstrate the elemental composition of these nanomaterials with the hint of metal-metal charge transfer phenomenon likely due to heterostructure composition. These modifications led to a significant active surface area resulting in elevated electrocatalytic performance. In comparison to benchmark Pt/C at -60 mV in 1 M KOH, hydrogen evolution reaction (HER) reached at current density around 10 mA cm-2 at -90 mV overpotential. The stability test displayed excellent results with a decrease of 2 mV in overpotential at current density of 10 mA cm-2. Results indicate that such heterostructured nanocomposites can be used as an effective catalyst for HER.

Source: PLoS ONE

DOI: 10.1371/journal.pone.0311885

Authors: Warisha Naseeb, Muhammad Kaleem Khosa, Awal Noor, Sadaf Qayyum, Shaowei Chen

Institutions: University of California, Santa Cruz, Government College University, Faisalabad, King Faisal University

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $2,290