CoFe alloy nanoparticles encapsulated in a 3D honeycomb-like N-doped graphitic carbon framework for photocatalytic CO₂reduction

Abstract

The CoFe alloy nanoparticles (NPs) encapsulated in three-dimensional (3D) honeycomb-like porous N-doped graphitic carbon (CoFe/N-GC) frameworks were fabricated by a facile polymer thermal treatment method. Under UV-visible light irradiation, the...

Enhanced electrochemical CO2-to-ethylene conversion through second-shell coordination on a Cu single-atom catalyst

“…To evaluate the catalytic performance of Cu–C 3 N 4 -HA in CO 2 RR applications, a series of experiments were conducted in a flow cell reactor to evaluate its catalytic activity and selectivity. 55–60 LSV measurements were performed on C 3 N 4 , Cu–C 3 N 4 , and Cu–C 3 N 4 -HA to determine the optimal potential of the CO 2 RR. As depicted in Fig.…”

Anchoring of NiCox alloy nanoparticles on nitrogen vacancy-rich carbon nitride nanotubes toward promoting efficiently photocatalytic CO2 conversion into solar fuel

“…16 Among them, owing to the superiority in regulating the electronic properties and strengthening the adsorption capacity of the CO 2 molecule or C 1 intermediates, modification of alloy nanoparticles (NPs) onto appropriate supports has been recently acknowledged to be an effective strategy for inducing high activity for targeted products in multiple electron-involved catalytic processes. 17–20 For instance, Xiong et al and Wang et al respectively supported alloy nanoparticles (Pd x Cu 1 or Pt x Cu 1− x ) on TiO 2 to synthesize alloy photocatalysts innovatively. 21,22 The results showed that the alloy co-catalysts improved CO 2 activation and promoted carrier separation, which led to excellent photocatalytic CO 2 -to-CH 4 conversion performance.…”

Bi2MoO6 Embedded in 3D Porous N,O-Doped Carbon Nanosheets for Photocatalytic CO2 Reduction

“…As more NO-C was added to the reaction system, the disordered assembly between some of the BMO nanosheets led to aggregation, which instead reduced the surface pore space and the specific surface area[33][34][35]. The inset in FigureS2shows that the BMO/NO-C catalysts exhibit a typical mesoporous structure, which provides not only abundant channels for the diffusion of CO 2 gas on the surface and inside the catalysts but also contributes many active sites for the adsorption and reduction of CO 2 , which is very beneficial for improving the photocatalytic CO 2 RR performance[36][37][38].The microstructure and morphology of the catalysts were characterized by using SEM. The inset of Figure2ahas shown that Bi 2 MoO 6 is spherical and composed of a large number of nanosheets.…”