New insights into the photo-enhanced electrocatalytic reduction of carbon dioxide on MoS2-rods/TiO2 NTs with unmatched energy band

Efficient synthesis of MoS 2 nanoparticles modified TiO 2 nanobelts with enhanced visible-light-driven photocatalytic activity

“…Moreover, there are some miscellaneous peaks (Ti 6 O 11 ) in curve a, which may be caused by defects (Oxygen vacancies) introduced during the calcination process. About TM-4 (curve b), all diffraction peaks of TiO 2 nanobelts are still present in the XRD pattern of TM-4, which indicate the intrinsic structure of TiO 2 nanobelts are not destroyed during the fabrication of TM-4 [26]. As for pure MoS 2 microspheres (curve c), the (0 0 2), (1 0 0), (1 0 6) and (1 1 0) planes corresponding peaks can be observed.…”

“…7. The test was performed in 0.1 M L −1 KHCO 3 solution [26]. The photocurrent response is reversible as the illumination was turned on and off [32].…”

Co-doped MoS2 NPs with matched energy band and low overpotential high efficiently convert CO2 to methanol

“…Thus Co-doped MoS 2 NPs have a better photocatalytic performance than CoS/MoS 2 . The band gap of MoS 2 (1.17 eV) cannot match the CO 2 reduction potential, and this is why MoS 2 has no photocatalytic reduction ability of CO 2 [36] in spite of possessing a narrow energy band gap. So the next characterization is processed for the Co-doped MoS 2 NPs.…”

Production of methanol from CO2 electroreduction at Cu2O and Cu2O/ZnO-based electrodes in aqueous solution

“…Unfortunately, among the many electrocatalytic materials previously investigated for CO2 reduction, none of them are both efficient and selective, and the most common products are CO and HCOOH, which are not as readily used as fuels as hydrocarbons or alcohols are [10]. Among the studied materials, copper (Cu), molybdenum (Mo) and ruthenium (Ru), as well as their mixtures and oxidized forms [11,[15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30], have been reported to be the most active materials for the electrochemical transformation of CO2 to CH3OH. Cu is the only known material capable of producing mixtures of chemicals potentially interesting for industrial applications at high reaction rates over sustainable periods of time [31][32][33][34].…”