Ab-initio molecular dynamics simulation of condensed-phase reactivity

The electrolysis of ammonia and ethanimine in aquatic carbon dioxide solutions

authored by

Igor Gordiy, Lukas Steinbach, Irmgard Frank

Abstract

The re-use of wastewater is an increasingly important subject. Most recently, several attempts were reported to convert wastewater in harmless or even valuable substances by the use of electrical current. Electrochemistry is an old approach. The renewed interest stems from the fact that electrical current is often available in abundance, for example from solar energy in arid regions, while clean water is not. Experimentally, one has to deal with very many products which are the result of many reaction steps. Here, theory can help. Using Car–Parrinello molecular dynamics, we simulate the first few reaction steps of the electrolysis of wastewater. On the basis of previous studies, we investigate the reaction of carbon dioxide and nitrogen compounds. The results show a great variety of reaction steps and resulting products. Some of them are technologically interesting, such as hydrogen and formic acid.

Organisation(s)

Institute of Physical Chemistry and Electrochemistry
Research Group Frank

Type

Article

Journal

Energies

Volume

14

ISSN

1996-1073

Publication date

11.10.2021

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment, Fuel Technology, Energy Engineering and Power Technology, Energy (miscellaneous), Control and Optimization, Electrical and Electronic Engineering

Sustainable Development Goals

SDG 7 - Affordable and Clean Energy

Electronic version(s)

https://doi.org/10.3390/en14206510 (Access: Open)