Enhanced Water Dissociation Boosting Sodium Borohydride Hydrolysis on Ru‐Modified CoMoB Catalyst
Abstract Catalyzed sodium borohydride (NaBH 4 ) hydrolysis is integral to H 2 ‐supply systems in fuel cells, with Co‐B among the most effective catalysts featured with high B─H bond cleavage activity. However, its limited water dissociation capability produces an insufficient proton supply for H 2 generation. In this study, Ru element was introduced with the capability of water deprotonation into the Co‐B system, constructing a dual‐site catalyst for NaBH 4 hydrolysis. A series of in situ characterizations confirmed accelerated water dissociation kinetics on Ru@CoMoB. Electron transfer between Co and Ru generated a synergistic effect, simultaneously facilitating B─H and H─OH bond cleavage. Consequently, Ru@CoMoB exhibited remarkable catalytic performance, achieving a hydrogen generation rate of 26,936 mL g cat −1 min −1 in 10 wt% NaBH 4 at room temperature—approximately 25 times higher than that of the CoMoB control (1,049 mL g cat −1 min −1 ). When implemented in a hydrogen generation system, Ru@CoMoB enabled the stable operation of a 100 W fuel cell.
Authors
- Qisheng Yan (ORCID: https://orcid.org/0009-0008-1398-6135)
- Xin Xu (ORCID: https://orcid.org/0000-0002-2075-2811)
- Chenyang Wei (ORCID: https://orcid.org/0000-0002-2327-9273)
- D. Song (ORCID: https://orcid.org/0000-0003-4133-0455)
- Wuning Yuan
- Yixiang He
- Wen Guo (ORCID: https://orcid.org/0000-0001-6412-9725)
- Youyong Li (ORCID: https://orcid.org/0000-0002-5248-2756)
- Liangyao Xue (ORCID: https://orcid.org/0000-0002-6132-9382)
- Cheng Liu (ORCID: https://orcid.org/0000-0001-7032-2310)
- Kai Sun (ORCID: https://orcid.org/0000-0003-1745-9136)
- Shucheng Shi (ORCID: https://orcid.org/0000-0003-4568-9369)
- Xiao Yang (ORCID: https://orcid.org/0000-0002-0850-7813)
- Wenzhe Niu (ORCID: https://orcid.org/0000-0003-0286-9992)
- Zhuorong Lu
- Jiaqi Zhang (ORCID: https://orcid.org/0000-0001-9054-659X)
- Zhi Liu (ORCID: https://orcid.org/0000-0002-8973-6561)
- Jun Cai (ORCID: https://orcid.org/0000-0002-3806-7230)
- H. Li (ORCID: https://orcid.org/0009-0004-0118-8874)
- Bo Zhang (ORCID: https://orcid.org/0000-0002-7853-979X)
Institutions
- Fudan University (CN)
- ShanghaiTech University (CN)
- Soochow University (CN)
Publication Details
- Journal
- ChemCatChem
- Published
- 2025-05-31
- DOI
- https://doi.org/10.1002/cctc.202500450
- Citations
- 1
- Primary Topic
- Hydrogen Storage and Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.52
Funders
- National Natural Science Foundation of China