A5052587669- Ammonia Synthesis and Nitrogen Reduction
- Advanced Photocatalysis Techniques
- Hydrogen Storage and Materials
- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Chalcogenide Semiconductor Thin Films
- Advancements in Battery Materials
- Phase Change Materials Research
- Adsorption and Cooling Systems
- Caching and Content Delivery
- Chemical Synthesis and Characterization
- Advanced Battery Materials and Technologies
- Thermal Expansion and Ionic Conductivity
- CO2 Reduction Techniques and Catalysts
Monash University
2018-2024
ARC Centre of Excellence for Electromaterials Science
2021
Australian Regenerative Medicine Institute
2020
While direct nitridation of magnesium requires high temperatures, we demonstrate that an electrodeposited, metal surface can activate N 2 at close-to-ambient temperature, and the resulting material be converted into ammonium.
Effective operation of electrocatalysts for the ammonia oxidation reaction (AOR) is typically constrained by poisoning, rapid corrosion, and low Faradaic efficiencies (FEs). Aiming to address these challenges, we present herein a robust silver oxide (AgOx) catalyst generated in situ anodic electrodeposition from solution Tollen's reagent ([Ag(NH3)2]OH). When tested 1 M KOH 0.1 NH3 at 1.1 V vs standard hydrogen electrode, AgOx catalyzes AOR nitrite an FE 70 ± 6% yield rate 42 7 nmol s–1 cm–2,...
Abstract Studies of the ammonia oxidation reaction (AOR) for synthesis nitrite and nitrate (NO 2/3 − ) have been limited to a small number catalytic materials, majorly Pt based. As demand nitrate‐based products such as fertilisers continues grow, exploration alternative catalysts is needed. Herein, 19 metals immobilised particles on carbon fibre electrodes were tested their activity electrooxidation NO under alkaline conditions (0.1 m KOH). Nickel‐based showed highest overall yield with rate...
In this work, we describe a composite electrocatalyst for the electrooxidation of ammonia to nitrite and nitrate under ambient conditions as step towards stable, practical materials process.
Abstract Electrocatalytic oxidation of ammonia is an appealing, low‐temperature process for the sustainable production nitrites and nitrates that avoids formation pernicious N 2 O can be fully powered by renewable electricity. Currently, however, number known efficient catalysts such a reaction limited. The present work demonstrates copper‐based electrodes exhibit high electrocatalytic activity selectivity NH 3 to NO − in alkaline solutions. Systematic investigation effects pH potential on...
The activation of dinitrogen as a fundamental step in reactions to produce nitrogen compounds, including ammonia and nitrates, has cornerstone role chemistry. Bringing together research from disparate fields where this can be achieved sustainably, Faraday Discussion seeks build connections between approaches that stimulate further advances. In paper we set out provide an overview these different their commonalities. We explore experimental aspects the positive increasing pressure some...
When used to promote the oxygen evolution reaction (OER), transition‐metal chalcogenides convert into oxyhydroxide/(hydr)oxide catalysts, performance of which depends on properties precursor. The present study aims explore these effects for cobalt and cobalt–iron selenides (CoSe n Co 1 Fe Se ) prepared using a simple microwave‐assisted method, in comparison reference material synthesized by high‐temperature CoO x H y with vapors. Physical characterization microwave‐synthesized CoSe...
Kinetics and coulombic efficiency of the electrochemical magnesium plating stripping processes are to a significant extent defined by composition electrolyte solution, optimization which presents pathway for improved performance. Adopting this strategy, we undertook systematic investigation Mg0/2+ process in different combinations Mg2+–Li+–borohydride–bis(trifluoromethylsulfonyl)imide (TFSI–) electrolytes 1,2-dimethoxyethane (DME) solvent. Results indicate that presence BH4– is essential...
The electrochemical oxidation of ammonia has been studied in detail due to its inherent utility as a fuel cell reactant 1 for the remediation wastewater systems 2 sensors 3 and hydrogen carrier. 4 However, bulk research conducted focused on use noble metal-based catalysts such Pt, Pd, Rh Ir their activity towards reaction (AOR). 5,6 Electrochemically, platinum is complex multistep which tends be sluggish suffers from poor faradaic efficiency, with variety products being formed. Another...