Integrated COnversion of NItrate and Carbonate streams

Introduction

ICONIC (Integrated COnversion of Nitrate and Carbonate streams) pursues the development of a new technology to remediate water ecosystems that have been polluted due to intense agriculture, farming, and CO2 emissions, using electrolysis, to generate globally used chemicals.

Objectives

In particular, ICONIC seeks to convert damaging species responsible for eutrophication and ocean acidification (namely nitrates and carbonates from seawater) into urea, the most important globally produced C-N chemical. Powered by renewables, this offers a path to closing the carbon and nitrogen cycles.

Methodology

ICONIC proposes an integrated electrochemical approach demonstrating, for the first time, the co-electrolysis of carbonates and nitrates into urea selectively, and industrially relevant currents, from seawater using scalable prototypes.

Innovation

Our innovation stems from:

1. The accelerated discovery of new catalysts that, based on non-critical raw materials, activate and couple C and N species.
2. Their bottom-up synthesis and assembly into mesostructured electrodes to program reaction environments at high current densities.
3. Their implementation into membrane electrode assemblies, all informed by operando characterizations that inform predictive models to guide in the rational design of the catalyst and system.

Interdisciplinary Expertise

ICONIC leverages interdisciplinary expertise in the areas of:

• Chemistry
• Electrochemistry
• Materials science
• Spectroscopies
• Engineering

This expertise spans all scales from catalyst design to system-level implementation.

Impact

ICONIC's findings would also have a positive impact on water-based electrolysis with great decarbonization potential, contributing to their potential operation using abundant seawater.