Catalytic and stoichiometric stepwise conversion of side-on bound dinitrogen to ammonia mediated by a uranium complex

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Dual[sbnd]active[sbnd]site accelerated hydrogenation facilitates efficient electrochemical reduction of nitrate to ammonia

Paul Joseph Dyson

Cuprous oxide (Cu2O) materials are the most promising copper-based catalysts for electrochemical nitrate (NO3[sbnd]) reduction to ammonia (NH3). Nevertheless, adsorption for N[sbnd]containing intermediates (NO3[sbnd], NO2[sbnd], etc.) is too[sbnd]strong, ...

2025

Quantifying electronic and geometric effects on the activity of platinum catalysts for water-gas shift

Giovanni Pizzi

The unique catalytic activity of small nanoparticles can be attributed to their distinctive electronic structure and/or their ability to expose sites with a unique geometry. Quantifying and distinguishing the contributions of these effects to catalytic per ...

2025

Encapsulated alloy catalysts and their methods of preparation

Xile Hu, Wenchao Ma

The present invention relates to a method for preparing a catalyst comprising the steps of a. dissolving two or more alloy metal salts, b. adding at least one chelating agent and at least one stabilising agent, forming a sol, c. adding an encapsulant to ...

2025

Double-atom catalysts as a molecular platform for heterogeneous oxygen evolution electrocatalysis

Xile Hu, Duncan Thomas Lindsay Alexander, Lichen Bai

The oxygen evolution reaction (OER) is an essential anode reaction for the generation of fuels through water splitting or CO2 electroreduction. Mixed metal oxides containing Co, Fe or Ni have proved to be the most promising OER electrocatalysts in alkaline ...

NATURE PORTFOLIO2021

Atomic-scale structure of the glassy Ge2Sb2Te5 phase change material: A quantitative assessment via first-principles molecular dynamics

Assil Bouzid

The amorphous structure of the phase change material Ge2Sb2Te5 (GST) has been the object of controversial structural models. By employing first-principles molecular dynamics within density functional theory, we are able to obtain quantitative agreement wit ...

Amer Physical Soc2017

Effect of Mn(II) on the structure and reactivity of biogenic uraninite

Rizlan Bernier-Latmani, Elena Suvorova Buffat, Harish Veeramani, Jonathan Sharp

2009