Selective C₂₊ alcohol synthesis by CO₂ hydrogenation via a reaction-coupling strategy

Abstract

Higher alcohol synthesis (HAS) from non-petroleum carbon resources (a mixture of H2 and CO2) is an attractive but challenging research target. This reaction still suffers from poor higher alcohol (HA)...

Sulfate-Promoted Higher Alcohol Synthesis from CO2 Hydrogenation

“…Such high HA STY has ranked among the top values in the literature (Table ). ,,,,,− Under the same conditions, the HA STY is 109.7 mg g cat –1 h –1 for the pure 0.6S-KCFZ catalyst, which reflects the advantage of multifunctional catalysts in HAS.…”

“…However, the lack of CO partial pressure often causes a low coverage of chemisorbed CO* or CH x O* species on the catalyst surface for the C–C coupling reaction, which is the key factor restricting the HAS activity. Inspired by the reaction-coupling strategy from our previous work, , we next combined the optimized 0.6S-KCFZ catalyst with CuZnAlZr oxide in the way of powder mixing to regulate the reaction network of HAS by introducing additional CH x O*/CO* species. As expected, the multifunctional catalyst performed improved HAS activity.…”

Synthesis of Co@CoO/C by micro-tube method and their electrochemical performances

“…The reason behind this phenomenon is that the Co(OH) 2 generated by the microtubule reaction decomposes after heating in the precursor body and produced CoO (reaction equation (1) ). With the increase of holding time, Kapok fiber undergone gradual carbonization, and CoO is then restored by carbon atoms to form nano Co particles (reaction equation (2) ) [ 33 , 34 ]. Co(OH) 2 → CoO + H 2 O 2 CoO + C → 2 Co + CO 2 …”

Development of Multifunctional Tandem Catalysts for CO2 Hydrogenation to Higher Alcohols

“…It's noticeable that the selectivity towards propanol and butanol with more carbon number reaches 40% among the total higher alcohols products, which was ascribed to the comodification of ferric carbide with transition metal Mn, Cu and alkaline metal K. The synergistic effect of the multifunctional active sites resulted to the enhanced formation of *C2H5O and the final higher alcohols products. Liu et al [80] also explored the relationship between the components in the reaction coupling strategy, and finally combined CuZnAlZr and 4.7KCFZ into a multifunctional catalyst, achieving the selectivity from 17.4% to 33.0%, and the STY from 42.1 mg gcat -1 h -1 to 84.0 mg g cat -1 h -1 , which was nearly doubled.…”