Synthesis of pure and uniform nano-sized TS-1 crystal with high titanium content and high space-time yield

Anatase-free titanium silicalite-1 (TS-1) zeolite with high framework titanium content is highly required for catalysing selective oxidation reactions, while its synthesis generally suffers from cost, efficiency and environmental issues. Herein,...

Advancing photoreforming of organics: highlights on photocatalyst and system designs for selective oxidation reactions

This review appraises recent literature and provides guidelines for the rational design of photocatalytic system for selective photoreforming reaction.

Second sphere effects on H2O2 activation by non-heme FeII complexes: Role of a phenol group in the [H2O2]-dependent accumulation of FeIVO vs FeIIIOOH

Redox metalloenzymes achieve very selective oxidation reactions under mild conditions using O2 or H2O2 as oxidants and release harmless side-products like water. Their oxidation selectivity is intrinsically linked to the...

Single-atomic cobalt fused biomolecule-derived nitrogen-doped carbon nanosheets for selective oxidation reaction

Non-noble metal single-atoms catalysts hold great promise in selective oxidation reactions, although the progress is still unsatisfied because of the synthetic challenge and the lack of mechanistic interpretations. Herein, we...

Dioxygen dissociation over man-made system at room temperature to form the active α-oxygen for methane oxidation

Activation of dioxygen attracts enormous attention due to its potential for utilization of methane and applications in other selective oxidation reactions. We report a cleavage of dioxygen at room temperature over distant binuclear Fe(II) species stabilized in an aluminosilicate matrix. A pair of formed distant α-oxygen species [i.e., (Fe(IV)═O)2+] exhibits unique oxidation properties reflected in an outstanding activity in the oxidation of methane to methanol at room temperature. Designing a man-made system that mimicks the enzyme functionality in the dioxygen activation using both a different mechanism and structure of the active site represents a breakthrough in catalysis. Our system has an enormous practical importance as a potential industrial catalyst for methane utilization because (i) the Fe(II)/Fe(IV) cycle is reversible, (ii) the active Fe centers are stable under the reaction conditions, and (iii) methanol can be released to gas phase without the necessity of water or water-organic medium extraction.