Formic acid and hydrogen generation from the photocatalytic reduction of CO2 on visible light activated N-TiO2/CeO2/CuO composites

Promoting Electrocatalytic Hydrogenation of Oxalic Acid to Glycolic Acid via an Al3+ Ion Adsorption Strategy Coupled with Ethylene Glycol Oxidation

“…The Ti 2p XPS spectra in Figure g show that the introduction of Al 3+ results in a decrease of the Ti 4+ valence state. Thus, we speculate that enhanced H* generation on TiO 2 –Al 3+ may be attributed to the lower Ti 4+ valence state …”

“…Thus, we speculate that enhanced H* generation on TiO 2 −Al 3+ may be attributed to the lower Ti 4+ valence state. 39 To reveal the ECH mechanism of OX reduction, we also preferentially adding H* on the carbon atom of the C�O group. Based on the above results and previous studies, 22,27 we propose a possible reaction mechanism for the ECH of OX over TiO 2 −Al 3+ .…”

Review on CeO2-Based Photocatalysts for Photocatalytic Reduction of CO2: Progresses and Perspectives

“…NMCeO 2 showed an efficient CO 2 adsorption capacity and obtained a significantly enhanced CO 2 reduction capacity, where CO and CH 4 yields were 1.83 and 1.25 μmol·g cat –1 , respectively, which is 2.5 times greater than OMCe yields. Using the Pechini method and the impregnation method, Ibarra-Rodriguez et al created N-doped 3 wt % CeO 2 and CuO particulate catalysts. The composite catalysts obtained an enhanced light absorption range and the increased specific surface area of the N doping allowed the catalysts to exhibit an enhanced adsorption capacity for CO 2 molecules.…”

Photocatalytic conversion of carbon dioxide, methane, and air for green fuels synthesis

“…The research paper revealed that the HCOOH production of PdAu@Fe 2 Mn-MOF was 3.6 times higher than that of the unmodified Fe 3 -MOF. 98 Mixed oxide composite catalysts have been investigated by Ibarra-Rodriguez et al 99 In their work, the photocatalytic reduction of CO 2 to produce HCOOH and H 2 with visible light using activated N-TiO 2 /CeO 2 /CuO composites was assessed. Specifically, the ternary titania-based compounds were synthesized by implementing two steps, pure and nitrogen-doped titanium dioxide, followed by adding 3% wt of cerium and copper oxide particles.…”

“…The system's pressure was 2 psi and irradiated for three hours using two xenon lamps. 99 The findings of a study reported by An et al 100 offer fresh insights into employing a recyclable solid catalyst with an appropriate support material that constitutes a different approach for catalyst activation in achieving selective CO 2 reduction. This group presented a widely available soil mineral alpha-iron(III) oxyhydroxide (α-FeOOH; goethite) that was loaded onto an Al 2 O 3 support, and tested under visible light.…”