Work

Electrostatic-electrochemical coupling enables single-electrode and high-voltage electrochemical process: Application in nano-catalysis

Year: 2026

Type: article

Abstract: Conventional electrochemical devices require two electrodes to maintain charge balance in the electrolyte. Here, we provide experimental evidence of charge accumulation in bulk solution using a single-electrode, high-voltage electrochemical cell. Using Van de Graaff generator (an electrostatic generator) this electrochemical system can produce excess charge in the electrolyte through electrochemical reactions, without violating the global electroneutrality of the electrochemical system, including electrolyte and surrounding environment. This enables a new charge storage concept, liquid phase capacitor, based on spatially separated oppositely charged electrolyte solutions. Furthermore, this approach facilitates the electrosynthesis of platinum nano-catalysts for hydrogen evolution reaction.

Source: Next Energy

DOI: 10.1016/j.nxener.2026.100927

Authors: P. Vignesh Raja, Padinjarethil Vishnu, Vishrant Kumar, Abhinav Chandel, A. Sarkar, Ijjada Mahesh

Institutions: Indian Institute of Science Education and Research, Bhopal, Indian Institute of Technology Bombay

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: $1,280