Liquid Bismuth Catalyst Enables High‐CO‐Selectivity in CO 2 Hydrogenation
Source abstract
Abstract
ABSTRACT Here, we introduce a dynamic liquid‐bismuth (Bi) catalyst that exploits a reversible Bi 3+ /Bi 0 redox cycle to address the challenge of poor CO selectivity in the reverse water‐gas shift (RWGS) reaction at moderate temperatures. Molten Bi nanodroplets were stabilized via in situ confinement during H 2 ‐induced reduction of a BiVO 4 precursor, resulting in their firm anchoring on a defective vanadium oxide (VO x ) support while preserving dynamic surface mobility at 400°C, striking a balance between stability and fluidity. Combined mechanistic studies and DFT calculations revealed that Ni‐Bi dual sites on oxygen‐deficient VO x facilitate an H 2 ‐assisted redox mechanism: Bi sites enable direct CO 2 dissociation and weak CO * binding, favoring rapid CO desorption, while the Ni cocatalyst promotes H 2 dissociation and induces electron enrichment of VO x for CO 2 adsorption. This work demonstrates the potential of liquid‐Bi‐based catalysts for selective and efficient CO 2 ‐to‐syngas conversion.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Catalysts for Methane Reforming · Catalytic Processes in Materials Science · Catalysis and Oxidation Reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Academy of Advanced Carbon Conversion Technology College of Chemical Engineering Huaqiao University Xiamen Fujian P. R. China
Department of Biology Institute of Advanced Materials Hong Kong Baptist University Kowloon Tong Hong Kong SAR P. R. China
State Key Laboratory of Clean and Efficient Coal Utilization College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan Shanxi P. R. China
College of New Energy and Materials Engineering Shanxi Electronic Science and Technology Institute Linfen Shanxi P. R. China
State Key Laboratory for Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen Fujian P. R. China
Funding
National Natural Science Foundation of China
References (52)
Show source-provided references
1. 10.1016/j.checat.2025.10126410.1016/j.checat.2025.101264 ↗
2. 10.1021/jacs.5c0770110.1021/jacs.5c07701 ↗
3. 10.1039/C8CS00502H10.1039/C8CS00502H ↗
4. 10.1021/jacs.4c0851710.1021/jacs.4c08517 ↗
5. 10.1002/adma.20251279310.1002/adma.202512793 ↗
6. 10.1038/s41467‐024‐47550‐810.1038/s41467‐024‐47550‐8 ↗
7. 10.1038/s41929‐019‐0343‐210.1038/s41929‐019‐0343‐2 ↗
8. 10.1038/s41467‐022‐33308‐710.1038/s41467‐022‐33308‐7 ↗
9. 10.1038/s41929‐023‐01040‐010.1038/s41929‐023‐01040‐0 ↗
10. 10.1016/j.apcatb.2021.12010110.1016/j.apcatb.2021.120101 ↗
11. 10.1007/s12274‐022‐4207‐810.1007/s12274‐022‐4207‐8 ↗
12. 10.1080/01614940.2017.131617210.1080/01614940.2017.1316172 ↗
13. 10.1021/acsnano.3c0763010.1021/acsnano.3c07630 ↗
14. 10.1002/adma.20210872710.1002/adma.202108727 ↗
15. 10.1039/D0SC01600D10.1039/D0SC01600D ↗
16. 10.1016/j.tca.2018.09.01010.1016/j.tca.2018.09.010 ↗
17. 10.1002/cctc.20220042210.1002/cctc.202200422 ↗
18. 10.1038/s41929‐023‐01083‐310.1038/s41929‐023‐01083‐3 ↗
19. 10.1038/s41929‐019‐0416‐210.1038/s41929‐019‐0416‐2 ↗
20. 10.1021/acscatal.7b0182710.1021/acscatal.7b01827 ↗
21. Research Progress in the Construction of Integrated Catalysts Based on Solid Precursors and Their Application in CO2 Hydrogenation
22. 10.1016/j.apcatb.2024.12462010.1016/j.apcatb.2024.124620 ↗
23. 10.1016/j.cej.2025.15945610.1016/j.cej.2025.159456 ↗
24. 10.1021/acs.jpcc.7b0311910.1021/acs.jpcc.7b03119 ↗
25. 10.1016/j.jhazmat.2014.12.02210.1016/j.jhazmat.2014.12.022 ↗
26. 10.1016/j.compositesb.2013.02.04110.1016/j.compositesb.2013.02.041 ↗
27. 10.1039/C5TA00502G10.1039/C5TA00502G ↗
28. 10.1016/j.nanoen.2020.10523310.1016/j.nanoen.2020.105233 ↗
29. 10.1021/ar300242710.1021/ar3002427 ↗
30. 10.1126/science.adl126010.1126/science.adl1260 ↗
31. 10.1039/c1cs15008a10.1039/c1cs15008a ↗
32. 10.1016/j.checat.2025.10136110.1016/j.checat.2025.101361 ↗
33. 10.1016/j.apcatb.2021.12048610.1016/j.apcatb.2021.120486 ↗
34. 10.1021/acscatal.2c0067110.1021/acscatal.2c00671 ↗
35. 10.1016/j.apcatb.2020.11958110.1016/j.apcatb.2020.119581 ↗
36. 10.1002/adma.20220530310.1002/adma.202205303 ↗
37. 10.1021/acscatal.2c0058310.1021/acscatal.2c00583 ↗
38. 10.1021/acscatal.2c0641210.1021/acscatal.2c06412 ↗
39. 10.1002/adma.20241894210.1002/adma.202418942 ↗
40. 10.1038/s41929‐022‐00840‐010.1038/s41929‐022‐00840‐0 ↗
41. 10.1016/j.jechem.2019.11.02110.1016/j.jechem.2019.11.021 ↗
42. 10.1016/j.apcatb.2019.11854610.1016/j.apcatb.2019.118546 ↗
43. 10.1021/acscatal.1c0204110.1021/acscatal.1c02041 ↗
44. 10.1016/j.scib.2025.09.03810.1016/j.scib.2025.09.038 ↗
45. 10.1002/adfm.20241493110.1002/adfm.202414931 ↗
46. 10.1002/advs.20230107310.1002/advs.202301073 ↗
47. 10.1038/s41467‐025‐67718‐010.1038/s41467‐025‐67718‐0 ↗
48. 10.1021/jacs.2c0369810.1021/jacs.2c03698 ↗
49. 10.1103/PhysRevLett.96.05610210.1103/PhysRevLett.96.056102 ↗
50. 10.1039/D4MH01415D10.1039/D4MH01415D ↗
51. 10.1063/1.47117410.1063/1.471174 ↗
52. 10.1039/D1EE03283F10.1039/D1EE03283F ↗