Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 847, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.156492
Keywords
Electrochemical catalysis; Water splitting; AgNi alloy; Over potential; Renewable energy
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Funding
- EU Horizon2020 project [663830]
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An ideal bifunctional electro-catalyst for water splitting is low cost, easily available and have lower overpotential. Here, a new nitrogen doped carbon dots (NDCDs)-AgNi alloy based electrocatalyst is used for electrochemical water splitting. NDCDs-AgNi alloy nanoparticles are synthesized by easy and scalable methods. NDCDs are prepared by pyrolizing ethanolamine and act as a good electrocatalyst for HER. Electrochemical activity of the catalyst is evaluated by cyclic voltammetry and linear swap voltammetry. The prepared electrocatalyst work well under acidic media. To enhance the catalytic performance of the material, the heat treatment at temperature from 300 degrees C to 500 degrees C is carried out. After series of optimizations, NDCDs-AgNi alloy demonstrated superior OER activity. The results show that the limiting current density has been increased and the heat treated samples shows HER phenomena. (C) 2020 Elsevier B.V. All rights reserved.
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