Cocatalyst loading

This approach requires no additional synthetic steps for catalyst modification and overcomes proline s main shortcomings of moderate yield and enantioselectivity. In some cases, an even better combination of yield and enantioselectivity could be achieved using just 0.5 mol% of (R)-BINOL, but in general both isomers of BINOL were almost equally effective. However BINOL is unlikely to be readily biodegradable, biorenewable/biodegradable alternatives could further improve the environmental profile of this co-catalytic process. Although the cocatalyst loading of just... 

Visible light photocatalysis cocatalyst loading, 419-420 doping, 415 16 titania-chloroplatinum(IV) complexes, 378-384 titania-halogenorhodium(III) complexes, 384—391... 

Cocatalyst Loading (wt%) Cr loading (wt%) Rate of Hj formation (pmol h ) Rate of Oj formation (pmol h )... 

Cocatalyst Loading amount (wt %) Rate of evolution ( jmol h ) Cr co-loading amount (wt %) Rate of evolution ( jmol h" ) ... 

Cocatalysts loading increase the surface area and active sites junctions surface defects sacrificial agents bi ly dispersed surface plasmon Z-schenr... 

Huang L, Wang X, Yang J, Liu G, Han J, Li C (2013) Dual cocatalysts loaded type I CdS/ZnS core/shell nanocrystals as effective and stable photocatalysts for H2 evolution. J Phys Chem C 117 11584-11591... 

Kato H, Asakura K, Kudo A (2003) Highly efficient water splitting into H2 and O2 over lanthanum-doped NaTaOs photocatalysts with high crystallinity and surface nanostructure. J Am Chem Soc 125 3082-3089 Iwase A, Kato H, Kudo A (2005) A novel photodeposition method in the presence of nitrate ions for loading of an iridium oxide cocatalyst for water splitting. Chem Lett 34, 946-947... 

Loaded with 10-20 nm nanoparticles of rhodium-chromium mixed oxide (Rh2-yCry03) as a cocatalyst on the surface of [(Gai xZnx)(Ni-xOx)], the quantum efficiency of overall water splitting is about 2.5% at 420-440 nm [55,180-182]. Use of AgN03 as a sacrificial electron acceptor leads to an increase in oxygen evolution. The mixed oxide exhibited high and stable photocatalytic activity in aqueous H2SO4 solution at pH 4.5 [182] both lower and higher pH... 

Entry Cocatalyst Catalyst Loading (mol%) Time (h) Yield (%)... 

The standard electrode potentials are far more anodic than that of one-electron transfer process, -0.284 V (SHE) and the visible-light photocatalytic activity of platinum-loaded tungsten(VI) oxide could be interpreted by enhanced multiple-electron transfer process by deposited platimun (45), since it is well known that platinum and the other noble metals catalyze such multiple-electron transfer processes. Similar phenomena, cocatalyst promoted visible-light photocatalytic activity, have been reported with palladium 46) and copper oxide (47). Thus, change of reaction process seems beneficial to realize visible-light photocatalytic activity. 

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