Authors
Pengze Zhang, Chong Yao, Peng Zhang, Qingtao Wang, Xiaonian Li, Mingyuan Zhu
Published in
Small (Weinheim an der Bergstrasse, Germany). Pages e08722. Oct 03, 2025. Epub Oct 03, 2025.
Abstract
The reverse water gas shift reaction (RWGS) can convert CO2 into CO, but the low activity and the inexpensive catalysts inhibit the industrialization process. As a potential material for the RWGS reaction, Mo2C faces the challenges of high dispersibility and synthesis efficiency. Here, the Mo3N2-Mo2C heterojunction encaged in N-doped carbon matrix is synthesized using in situ carbonization method, which exhibits high activity under mild temperature. The CO2 conversion is 38.3%, the selectivity of CO is 99.1% upon 410 °C. The Space Time Yield is 17333.6 mgCO gcat -1h-1 (619.06 mmol gcat -1 h-1) under 450 °C, and WHSV = 240 000 mL gcat -1 h-1, which is superior than traditional catalysts such as Cu-Zn-Al and noble metal catalysts. The catalyst shows 99.9% selectivity of CO, and maintaining equilibrium conversion for 200 h under 500 °C. The structure-performance relationship studies indicate the synergistic effect of Mo2C-Mo3N2 heterojunction active sites enhances H2 adsorption and dissociation significantly, which boosting the H assisted CO2 reduction reaction. Moreover, the N-doped carbon cage confined environment greatly boosts the catalyst stability. This work provides a simple and feasible strategy for the synthesis of highly dispersed Mo2C-Mo3N2 heterojunction active site for CO2 hydrogenation reaction, and a way to boost the H2 activation capacity of Mo2C catalyst.
PMID:
41043083
Bibliographic data and abstract were imported from PubMed on 04 Oct 2025.
Read full publication at:
Please sign in
to see all details.
Advertisement
Stats
- Recommendations n/a n/a positive of 0 vote(s)
- Views 49
- Comments 0