Predicting molecular structures of surface metal oxide species on oxide supports under ambient conditions

1991 ◽  
Vol 95 (15) ◽  
pp. 5889-5895 ◽  
Author(s):  
Goutam Deo ◽  
Israel E. Wachs
Keyword(s):  
Metal Oxide ◽  
Molecular Structures ◽  
Ambient Conditions ◽  
Oxide Supports ◽  
Surface Metal

The influence of metal oxide additives on the molecular structures of surface tungsten oxide species on alumina: I. Ambient conditions

1998 ◽  
Vol 132 (1) ◽  
pp. 43-57 ◽  
Author(s):  
Marlene M Ostromecki ◽  
Loyd J Burcham ◽  
Israel E Wachs ◽  
Narayanan Ramani ◽  
John G Ekerdt
Keyword(s):  
Metal Oxide ◽  
Tungsten Oxide ◽  
Molecular Structures ◽  
Ambient Conditions

Role of metal oxide supports in NH 3 decomposition over Ni catalysts

2016 ◽  
Vol 524 ◽  
pp. 45-49 ◽  
Author(s):  
Isao Nakamura ◽  
Tadahiro Fujitani
Keyword(s):  
Metal Oxide ◽  
Ni Catalysts ◽  
Oxide Supports

scholarly journals A Combined Computational and Experimental Study of Methane Activation during Oxidative Coupling of Methane (OCM) by Surface Metal Oxide Catalysts

2021 ◽  
Author(s):  
Daniyal Kiani ◽  
Sagar Sourav ◽  
Jonas Baltrusaitis ◽  
Israel E Wachs
Keyword(s):  
Experimental Study ◽  
Metal Oxide ◽  
Oxidative Coupling ◽  
Active Sites ◽  
Computational Models ◽  
Oxidative Coupling Of Methane ◽  
Catalytic Active Sites ◽  
Surface Metal ◽  
Heterolytic Dissociation ◽  
First Time

The experimentally validated computational models developed herein, for the first time, show that Mn-promotion does not enhance the activity of the surface Na2WO4 catalytic active sites for CH4 heterolytic dissociation...

scholarly journals Surface Oxygen Vacancies: Dynamics of Photo‐Induced Surface Oxygen Vacancies in Metal‐Oxide Semiconductors Studied Under Ambient Conditions (Adv. Sci. 22/2019)

2019 ◽  
Vol 6 (22) ◽  
pp. 1970132 ◽  
Author(s):  
Daniel Glass ◽  
Emiliano Cortés ◽  
Sultan Ben‐Jaber ◽  
Thomas Brick ◽  
William J. Peveler ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Oxygen Vacancies ◽  
Metal Oxide Semiconductors ◽  
Surface Oxygen ◽  
Ambient Conditions ◽  
Oxide Semiconductors

scholarly journals Novel Materials for Combined Nitrogen Dioxide and Formaldehyde Pollution Control under Ambient Conditions

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1040
Author(s):  
Hugo S. Russell ◽  
James Bonomaully ◽  
Rossana Bossi ◽  
Magdalena E. G. Hofmann ◽  
Hasse C. Knap ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Nitrogen Dioxide ◽  
Pollution Control ◽  
Carbon Adsorbent ◽  
Proton Transfer Reaction ◽  
Control Device ◽  
Urban Environments ◽  
Metal Catalyst ◽  
Ambient Conditions ◽  
Pollution Exposure

Formaldehyde (HCHO) and nitrogen dioxide (NO2) often co-exist in urban environments at levels that are hazardous to health. There is a demand for a solution to the problem of their combined removal. In this paper, we investigate catalysts, adsorbents and composites for their removal efficiency (RE) toward HCHO and NO2, in the context of creating a pollution control device (PCD). Proton-transfer-reaction mass spectrometry and cavity ring-down spectrometry are used to measure HCHO, and chemiluminescence and absorbance-based monitors for NO2. Commercially available and lab-synthesized materials are tested under relevant conditions. None of the commercial adsorbents are effective for HCHO removal, whereas two metal oxide-based catalysts are highly effective, with REs of 81 ± 4% and 82 ± 1%, an improvement on previous materials tested under similar conditions. The best performing material for combined removal is a novel composite consisting of a noble metal catalyst supported on a metal oxide, combined with a treated active carbon adsorbent. The composite is theorized to work synergistically to physisorb and oxidize HCHO and chemisorb NO2. It has an HCHO RE of 72 ± 2% and an NO2 RE of 96 ± 2%. This material has potential as the active component in PCDs used to reduce personal pollution exposure.

scholarly journals Dynamics of Photo‐Induced Surface Oxygen Vacancies in Metal‐Oxide Semiconductors Studied Under Ambient Conditions

2019 ◽  
Vol 6 (22) ◽  
pp. 1901841 ◽  
Author(s):  
Daniel Glass ◽  
Emiliano Cortés ◽  
Sultan Ben‐Jaber ◽  
Thomas Brick ◽  
William J. Peveler ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Oxygen Vacancies ◽  
Metal Oxide Semiconductors ◽  
Surface Oxygen ◽  
Ambient Conditions ◽  
Oxide Semiconductors
Sign in / Sign up

Export Citation Format

Share Document