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https://www.sciencedirect.com/science/article/pii/S092633731400099X
Nanoscale zirconia (ZrO 2) is widely investigated both as catalyst support and catalyst.Bare ZrO 2 binds gold weakly due to lack of surface defects. In this study, nanoscale ZrO 2 was modified with zinc oxide (ZnO) at different amounts, and examined as support of gold catalysts for the methanol steam reforming (SRM) reaction. ZrO 2 with high specific surface area serves as dispersant of ZnO to ...Cited by: 29
https://www.globalspec.com/industrial-directory/zirconia_catalyst_support
Mesoporous Silica- Zirconia Catalyst Support The fabrication of a mesoporous silica - zirconia solid solution was an important goal, since the activity of aqueous phase oxidation catalysts also depends on the support composition.
https://www.alfa.com/en/catalog/043815/
Zirconium oxide is used as a catalyst carrier, diamond simulant, refractory material, pigment, abrasives and solid electrolyte in electrochromic devices. It acts as a …
https://www.sciencedirect.com/science/article/pii/S0926860X04008786
Fig. 1 shows that the crystallite size of CuO in DP catalyst is much smaller than that in CP catalyst. The particle size calculated by the Sherrer equation in DP is about 3 nm, whilst in CP it is 14 nm. Such particle size effect resulted in the catalyst prepared using nanocrystalline zirconia as support have larger surface area than the CP catalyst.Cited by: 111
https://www.alfa.com/en/catalog/045600/
Zirconium oxide is widely used in the production of ceramics. It is found in the applications including protective coating on particles of titanium dioxide pigments, as a refractory material, in insulation, abrasives and enamels.
https://www.mdpi.com/journal/catalysts/special_issues/zirconium_phosphate
Zirconium phosphate plays, in those cases, a dual role, since it promotes the dispersion and stabilization of the catalysts, thanks to their interaction with the active sites on the surface of ZrP, and facilitates the recovery and reuse of the catalytic species due to their immobilization on the solid support.
https://www.sciencedirect.com/topics/physics-and-astronomy/zirconium
In particular, zirconia (ZrO 2) is an important support material for catalysis, due to its acid–base properties [1], and also because it is chemically more stable than the classic materials such γ-alumina and silica [2]. Zirconia can also function as a catalyst by itself.
https://www.sciencedirect.com/science/article/pii/0920586194800030
ELS EVIER Catalysis Today 20 ( 1994 ) 199-218 catalysis today Application of ZrOz as a catalyst and a catalyst support Tsutomu Yamaguchi* Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060, Japan Abstract Examples of the application of ZrO^ for catalysts and catalyst supports are reviewed.Cited by: 610
https://www.sigmaaldrich.com/chemistry/chemistry-products.html?TablePage=16255802
The zirconium-catalyzed asymmetric carboalumination (ZACA) reaction, which was developed by Nobel laureate Ei-ichi Negishi, is perhaps one of the best-known examples of common applications of a zirconium catalyst.
https://www.norpro.saint-gobain.com/catalyst-carrier/materials
Catalyst Carrier Materials from Alumina to Zirconia. Saint-Gobain NorPro has an impressive and lengthy record in the development and commercialization of carriers in a …Pore diameters: 30 nm - 300 µm
http://ase.tufts.edu/nano-cel/publications/deepoxofmethane.pdf
The catalyst composition throughout the paper is expressed as atomic% (metal/total metals 100%). The properties of Ag catalysts used in this study are listed in Table 1. Ag-containing catalysts had a lower BET surface area (<30 m2/g) than the zirconia support used. Pore closure of zirconia due to the impregnation is evident.
https://www.alibaba.com/showroom/zirconia-catalyst.html
A wide variety of zirconia catalyst options are available to you, There are 98 zirconia catalyst suppliers, mainly located in Asia. The top supplying country or region is China, which supply 100% of zirconia catalyst respectively. Zirconia catalyst products are most popular in Vietnam, Poland, and France.
https://patents.justia.com/patent/20110301021
A polyacid-promoted, zirconia catalyst or catalyst support having a high crush strength, surface area and pore volume is described. The polyacid-promoted, zirconia catalyst or catalyst support may be made by combining a zirconium compound with a polyacid/promoter material that includes the group 6 metals (i.e., chromium (Cr), molybdenum (Mo), tungsten (W)), as well as phosphoric acids ...
https://onlinelibrary.wiley.com/doi/full/10.1002/ente.201700843
The NiMo‐ceria‐zirconia catalyst was packed in the tubular channel of the single cell as a reforming unit. With application of the catalyst in the tubular cell, the mixture of isooctane and air can be efficiently reformed to simple syngas (a mixture of hydrogen and carbon monoxide) at 750 °C.
https://patents.google.com/patent/US5021392A/en
US5021392A US07/527,410 US52741090A US5021392A US 5021392 A US5021392 A US 5021392A US 52741090 A US52741090 A US 52741090A US 5021392 A US5021392 A …
http://www.freepatentsonline.com/y2011/0301021.html
Dec 08, 2011 · A polyacid-promoted, zirconia catalyst or catalyst support having a high crush strength, surface area and pore volume is described. The polyacid-promoted, zirconia catalyst or catalyst support may be made by combining a zirconium compound with a polyacid/promoter material that includes the group 6 metals (i.e., chromium (Cr), molybdenum (Mo), tungsten (W)), as well as …
https://www.researchgate.net/publication/260641176_ZnO-modified_zirconia_as_gold_catalyst_support_for_the_low-temperature_methanol_steam_reforming_reaction
ZnO-modified zirconia as gold catalyst support for the low-temperature methanol steam reforming reaction Article in Applied Catalysis B Environmental s 154–155:142–152 · July 2014 with 258 Reads
https://pubs.acs.org/doi/10.1021/jp071968l
This work reports on the hydrogen interaction with a 3 wt % Au/Ce0.62Zr0.38O2 (Au/CZ) catalyst prepared by deposition−precipitation. As deduced from X-ray powder diffraction, electron microscopy (scanning transmission electron microscopy−high-angle angular dark field and high-resolution electron microscopy), and CO volumetric/Fourier transform IR (FTIR) adsorption studies, the investigated ...
https://patents.google.com/patent/US10247071B2/en
Composites of mixed metal oxides for an exhaust gas purifying catalyst comprise the following co-precipitated materials by weight of the composite: zirconia in an amount in the range of 55-99%; titania in an amount in the range of 1-25%; a promoter and/or a stabilizer in an amount in the range of 0-20%. These composites are effective as supports for platinum group metals (PGMs), in particular ...
https://www.osti.gov/doepatents/biblio/1013050
A durable catalyst support/catalyst is capable of extended water gas shift operation under conditions of high temperature, pressure, and sulfur levels. The support is a homogeneous, nanocrystalline, mixed metal oxide of at least three metals, the first being cerium, the second being Zr, and/or Hf ...
https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=3623&context=etd
Zirconia, as a catalyst support in this process, which posesses the intrinsic advantages such as stable in hydrogenation environment and chemically resistant. But it has a significant shortage-----the specific surface area of zirconia is
https://www.osti.gov/doepatents/biblio/866194-process-using-iron-mixed-zirconia-titania-supported-catalyst
This paper describes a catalyst composition. It comprises: essentially of a high density support of co-precipitated titania and zirconia of compacted bulk density of 0.8-1.2 g/cc, a pore volume of 0.4-0.8 cc/g and a specific surface area by nitrogen BET of grater than 250 to about 400m{sup 2}/g, having associated therewith from 1-30 percent by weight of molybdenum oxide and 1-10 percent by ...
https://link.springer.com/article/10.1007%2Fs11244-017-0796-y
May 16, 2017 · The aim of the work was to investigate the influence of support on the catalytic performance of Ni catalysts for the glycerol steam reforming reaction. Nickel catalysts (8 wt%) supported on Al2O3, ZrO2, SiO2 were prepared by the wet impregnation technique. The catalysts’ surface and bulk properties, at their calcined, reduced and used forms, were determined by ICP, BET, XRD, NH3-TPD, …
https://en.wikipedia.org/wiki/Zirconium_dioxide
Zirconium dioxide (ZrO 2), sometimes known as zirconia (not to be confused with zircon), is a white crystalline oxide of zirconium.Its most naturally occurring form, with a monoclinic crystalline structure, is the mineral baddeleyite.A dopant stabilized cubic structured zirconia, cubic zirconia, is synthesized in various colours for use as a gemstone and a diamond simulant
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