NO decomposition by CO over Pd catalyst supported on TiO2 nanofibers

Core–Shell Electrospun Hollow Aluminum Oxide Ceramic Fibers

“…Small micron sized alumina tubes could be used for metering and controlling liquid flows in microfluidic processes [26]. Previous work in our research group has used ceramic fibers as a catalyst support structure [27,28], and hollow fibers have been shown to have a higher surface area when compared to solid fibers [18], which can of benefit to improve performance of supported catalysts. Other applications may include filtration media and membranes on a smaller scale than other alumina tube membranes [29,30] to take advantage of the increased surface area from electrospun fibers.…”

Electrospinning synthesis of vanadium–TiO2–carbon composite nanofibrous membranes as effective catalysts for the complete oxidation of low-concentration acetone

“…For instance, Pontelli et al [20] studied two types of CuO/CeO2 catalysts prepared through electrospinning and investigated their performance in the catalytic combustion of methane. In another study, titanium dioxide nanofibers were fabricated via electrospinning and utilized as a support for palladium nanoparticles in the catalytic reduction of NO by CO [21]. Recently, we investigated the performance of electrospun CuCeOx nanofibers in the catalytic oxidation of acetone; the nanofiber catalysts exhibited better catalytic performance than catalysts prepared through urea-nitrate combustion and sol-gel methods [22].…”

Effect of Calcination Temperature on NO–CO Decomposition by Pd Catalyst Nanoparticles Supported on Alumina Nanofibers

“…The small diameters of nanofibers may affect the crystal phases in alumina fibers, and the method of introduction of the catalyst particles into the sol gel precursor solution may introduce enough differences in the structure that experiments are needed to determine whether the crystal phases of the alumina in nanofiber form also affects the catalyst performance. A study of Pd catalyst supported on titania nanofibers showed that the concentration of the anatase phase of the titania affected the performance [9], hence it is likely that the same will occur with alumina, showing that this is a general phenomenon.…”

“…In many applications in the automotive industry, multi-metal catalysts are used simultaneously to introduce desired performances over a wide range of operating conditions (such as three-way noble metal Pt, Pd and Rh catalysts) [3][4][5][6]; metal oxide materials, which have multiple metal atoms such as Ce combined with transition metals (Fe, Au, Zr, Ti, Sn and others), can further enhance performance [7,[17][18][19]. The noble metals (Pd or Pt) supported on alumina are frequently used for gas phase catalytic reactions due to their high activity and thermal stability [5,[8][9][10][11][12][13].…”

“…Typical supported catalysts have metal catalyst particles attached to the surface of an inert support structure. Many transition metals (Au, Ir, Fe, Ni, Pd, Pt, Rh, Zr and others) can be used as catalysts due to their inherent properties to selectively adsorb chemical species and to reduce activation energies of chemical reactions [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. In many applications in the automotive industry, multi-metal catalysts are used simultaneously to introduce desired performances over a wide range of operating conditions (such as three-way noble metal Pt, Pd and Rh catalysts) [3][4][5][6]; metal oxide materials, which have multiple metal atoms such as Ce combined with transition metals (Fe, Au, Zr, Ti, Sn and others), can further enhance performance [7,[17][18][19].…”