Thermal stability of hydroxyl groups on a well-defined silica surface

O Sneh, SM George - The Journal of physical chemistry, 1995 - ACS Publications
2SiOH) was achieved by a H20 plasma reaction in a small internal high-pressure chamber.
The extent of dehydroxylation (2SiOH— Si—O—Si+ H20) of the silica surface was then …

Hydrogen production via catalytic decomposition of methane

TV Choudhary, C Sivadinarayana, CC Chusuei… - Journal of catalysis, 2001 - Elsevier
Methane decomposition on various Ni-supported catalysts has been investigated as a
method for production of CO-free hydrogen for use in fuel cells. The low levels of CO formed …

Silica

OW Flörke, HA Graetsch, F Brunk… - Ullmann's …, 2000 - Wiley Online Library
Silica (SiO2) is a commonly occurring compound in nature. Various crystalline and
noncrystalline silica minerals of inorganic and biogenic origin are known. Depending on …

The role of metal–support interactions in CO2 reforming of CH4

MCJ Bradford, MA Vannice - Catalysis today, 1999 - Elsevier
Prior investigations of CO2 reforming of CH4 have indicated that when TiO2 is used as a
support, TiOx species formed during reduction decorate the metal particle surfaces, thereby …

Hydrothermal sintering for densification of silica. Evidence for the role of water

A Ndayishimiye, A Largeteau, S Mornet… - Journal of the European …, 2018 - Elsevier
We present hydrothermal sintering as a smart route to densify ceramics at low temperature.
Home-made silica nanoparticles naturally hydrated, partially and quasi-fully dehydrated …

Temperature-programmed desorption of water from fumed silica, silica/titania, and silica/alumina

VM Gun'Ko, VI Zarko, BA Chuikov, VV Dudnik… - International journal of …, 1998 - Elsevier
Water desorption from highly disperse silica, titania, silica/titania, and silica/alumina surfaces
via unimolecular and bimolecular processes was studied by one-pass temperature …

Spectroscopic Investigation of the Mechanisms Responsible for the Superior Stability of Hybrid Class 1/Class 2 CO2 Sorbents: A New Class 4 Category

WC Wilfong, BW Kail, CW Jones… - … applied materials & …, 2016 - ACS Publications
Hybrid Class 1/Class 2 supported amine CO2 sorbents demonstrate superior performance
under practical steam conditions, yet their amine immobilization and stabilization …

Production of COx-free hydrogen for fuel cells via step-wise hydrocarbon reforming and catalytic dehydrogenation of ammonia

TV Choudhary, C Sivadinarayana… - Chemical Engineering …, 2003 - Elsevier
The stringent COx-free hydrogen requirement for the current low temperature fuel cells has
motivated the development of COx-free hydrogen production alternatives to the conventional …

[HTML][HTML] Separation of acid diterpenes of Copaifera cearensis Huber ex Ducke by flash chromatography using potassium hydroxide impregnated silica gel

AC Pinto, WF Braga, CM Rezende, F Garrido… - Journal of the Brazilian …, 2000 - SciELO Brasil
Various acid diterpenes of Copaifera cearensis Huber ex Ducke were isolated from the
crude extract by flash Silica Gel/Potassium Hydroxide Chromatography. The main …

A DRIFTS study of Cu–ZSM-5 prior to and during its use for N2O decomposition

PE Fanning, MA Vannice - Journal of Catalysis, 2002 - Elsevier
Cu–ZSM-5 and Na–ZSM-5 were characterized by diffuse reflectance infrared Fourier
transform spectroscopy (DRIFTS) prior to and during N2O decomposition at various …