Xiaoqi Chen

TL;DR: Chainmail for catalysts: a catalyst with iron nanoparticles confined inside pea-pod-like carbon nanotubes exhibits a high activity and remarkable stability as a cathode catalyst in polymer electrolyte membrane fuel cells (PEMFC), even in presence of SO(2).

TL;DR: Experimental measurements and density functional theory calculations indicate that the formation of the Fe═O intermediate structure is a key step to promoting the conversion of benzene to phenol, paving the way toward highly efficient nonprecious catalysts for low-temperature oxidation reactions in heterogeneous catalysis and electrocatalysis.

TL;DR: In this paper, a series of graphene-confined 3D transition metals (Mn, Fe, Co, Ni, and Cu) were screened, yet only single Fe atoms could catalyze the methane conversion, and they found that methane conversion proceeds on the O-FeN4-O active site along a radical pathway to produce CH3OH and CH3OOH first, and then the generated CH3HO can be further catalyzed to form HOCH2OOH and HCOOH at room temperature.

TL;DR: In this paper, a single iron site was confined in a graphene catalyst via 4N atoms, forming flat FeN4 structure in the matrix of graphene, and the optimized catalyst showed a high ORR activity, almost coming up to the activity of commercial 40% Pt/C catalyst, but a significantly higher stability and tolerance to SOx, NOx and methanol with respect to 40% P/C.

TL;DR: In this paper, a novel FeCo alloy catalyst encapsulated in pod-like carbon nanotubes via introducing graphene nanosheets into the raw materials to tailor the carbon wall thickness was reported.