Got coke? Self-limiting poisoning makes an ultra stable and selective sub-nano cluster catalyst

P Poths, G Li, T Masubuchi, HWT Morgan, Z Zhang… - ACS …, 2023 - ACS Publications
Supported sub-nano clusters hold great promise as economical and highly active catalysts.
However, they tend to deactivate rapidly by poisoning and sintering, impeding their …

Coking-Resistant Sub-Nano Dehydrogenation Catalysts: PtnSnx/SiO2 (n = 4, 7)

TJ Gorey, B Zandkarimi, G Li, ET Baxter… - ACS …, 2020 - ACS Publications
We present a combined experimental/theoretical study of Pt n/SiO2 and Pt n Sn x/SiO2 (n=
4, 7) model catalysts for the endothermic dehydrogenation of hydrocarbons, using the …

Alloying with Sn Suppresses Sintering of Size-Selected Subnano Pt Clusters on SiO2 with and without Adsorbates

B Zandkarimi, TJ Gorey, G Li, J Munarriz… - Chemistry of …, 2020 - ACS Publications
Using Pt in the form of subnanometer dispersed clusters is a way to save precious metals in
catalysis, but making such clusters stable against sintering is an uphill battle. Sn is a known …

[HTML][HTML] Sn-modification of Pt7/alumina model catalysts: Suppression of carbon deposition and enhanced thermal stability

G Li, B Zandkarimi, AC Cass, TJ Gorey… - The Journal of …, 2020 - pubs.aip.org
An atomic layer deposition process is used to modify size-selected Pt 7/alumina model
catalysts by Sn addition, both before and after Pt 7 cluster deposition. Surface science …

Effects of Film Thickness of ALD-Deposited Al2O3, ZrO2 and HfO2 Nano-Layers on the Corrosion Resistance of Ti(N,O)-Coated Stainless Steel

M Dinu, K Wang, ESM Mouele, AC Parau, A Vladescu… - Materials, 2023 - mdpi.com
The goal of this stydy was to explore the potential of the enhanced corrosion resistance of Ti
(N, O) cathodic arc evaporation-coated 304L stainless steel using oxide nano-layers …

The Interaction of Size-Selected Ru 3 Clusters with TiO 2: Depth-Profiling of Encapsulated Clusters

L Howard-Fabretto, TJ Gorey, G Li… - Physical Chemistry …, 2024 - pubs.rsc.org
Ru is a metal of interest in catalysis. Monodisperse Ru3 clusters as catalytic sites are
relevant for the development of catalysts because clusters use significantly lower amounts of …

The interaction of size-selected Ru 3 clusters with RF-deposited TiO 2: probing Ru–CO binding sites with CO-temperature programmed desorption

L Howard-Fabretto, TJ Gorey, G Li, S Tesana… - Nanoscale …, 2021 - pubs.rsc.org
Small Ru clusters are efficient catalysts for chemical reactions such as CO hydrogenation. In
this study 3-atom Ru3 clusters were deposited onto radio frequency (RF)-deposited TiO2 …

Using anion photoelectron spectroscopy of cluster models to gain insights into mechanisms of catalyst-mediated H 2 production from water

AJ McMahon, CC Jarrold - Physical Chemistry Chemical Physics, 2020 - pubs.rsc.org
Metal oxide cluster models of catalyst materials offer a powerful platform for probing the
molecular-scale features and interactions that govern catalysis. This perspective gives an …

Delaying hydrogen permeation by Mg and Sr added Al-Si coating during hot-press-forming of boron steels

C Kim, W Yang, H Castaneda - Materials Letters, 2024 - Elsevier
This study explores the hydrogen permeation resistance of Al-Si-Mg and Al-Si-Mg-Sr coated
22MnB5 boron steel in hot-press-forming. The Al-Si-Mg coating exhibits structural changes …

Optical and morphological studies of aluminium oxide films fabricated at different leaning angles using ion assisted E-Beam deposition technique

VSRSP Kumar, M Kumar, N Kumari, AL Sharma - Optik, 2020 - Elsevier
Present work describes the evaporation of aluminium oxide (Al 2 O 3) in the form of thin films
on glass and silicon substrates at different leaning angles (10− 80°) using Ion-Assisted E …