Oxygen vacancies stabilized Ag⁺to enhance the performance of an Ag/In₂O₃photocatalyst for non-oxidative coupling of methane

Abstract

The photocatalytic non-oxidative coupling of methane (NOCM) process is a desirable reaction that uses solar energy to convert methane into an equal proportion of ethane and hydrogen. However, most current...

Heterogeneous Photocatalytic Strategies for C(sp3)−H Activation

“…ethane), C(sp 3 )−H arylation products [103] have been reported. The photocatalysts mainly focus on metal oxides such as TiO 2 , [50–51,56,62–64,77,82] ZnO, [61,75,79,81,83] SrTiO 3 , [158–160] BiVO 4 , [76,161–162] and In 2 O 3 [78,163–164] …”

Photocatalytic non-oxidative conversion of methane

“…In a parallel development, Ag + ions on defect-rich Ag/ In 2 O 3 catalysts function as electron acceptors, undergoing reduction to Ag 0 during the reaction process. 41 The presence of oxygen vacancies offers pivotal adsorption sites for O atoms from Ag 2 O, thus forging swift electron transfer channels and impeding the recombination of electrons with photogenerated holes, enhancing methane activation (Fig. 6(C)).…”

Heterogeneous Photocatalytic Strategies for C(sp3)−H Activation

“…The photocatalysts mainly focus on metal oxides such as TiO 2 , [50][51]56,[62][63][64]77,82] ZnO, [61,75,79,81,83] SrTiO 3 , [158][159][160] BiVO 4 , [76,[161][162] and In 2 O 3 . [78,[163][164] Schröder et al precisely designed a mono-iron hydroxyl site in MOF (UiO-67) for C(sp 3 )À H activation of CH 4 under visible light irradiation. [74] Three components, namely, light absorbing sites, active sites for C(sp 3 )À H of CH 4 , and multielectron redox-active sites for O 2 activation, in the photocatalyst denoted as PMOF-RuFe(OH) function in a synergy manner (Figure 4a and 4b), resulting in an unprecedented CH 3 OH time yield (ca.…”

“…ethane), C(sp 3 )−H arylation products [103] have been reported. The photocatalysts mainly focus on metal oxides such as TiO 2 , [50–51,56,62–64,77,82] ZnO, [61,75,79,81,83] SrTiO 3 , [158–160] BiVO 4 , [76,161–162] and In 2 O 3 [78,163–164] …”