The Influence of Nickel Hydroxide Morphology on the Electrocatalytic Oxidation Performance of Urea: A Review

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Perustieteiden korkeakoulu | Bachelor's thesis
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Date

2024-04-26

Department

Major/Subject

Chemical Engineering

Mcode

CHEM3054

Degree programme

Aalto Bachelor’s Programme in Science and Technology

Language

en

Pages

16+3

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Abstract

The electro-oxidation of urea is used in hydrogen gas production, in direct urea fuel cells, and in the removal of urea from wastewater. In this reaction, nickel hydroxide in alkaline media is a more efficient catalyst compared to noble metals. However, it suffers from overpotential and low current density. The main morphological factors that affect its efficiency are the specific surface area and porosity. The larger the specific surface area and the higher the porosity, the more efficient the catalyst is in the electro-oxidation of urea. These morphologies are affected by the temperature, source of nickel, template, and time of nickel hydroxide preparation.

Description

Supervisor

Hummel, Michael

Thesis advisor

Wang, Jiaqi

Keywords

nickel hydroxide, morphology, urea, electro-oxidation

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https://urn.fi/URN:NBN:fi:aalto-202406184537

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[kand] Perustieteiden korkeakoulu / SCI