Efficient and controlled H2 release from sodium formate

作者：Xu, Fuhua; Huang, Wenkai; Wang, Yanlan; Astruc, Didier^*; Liu, Xiang^*

来源：Inorganic Chemistry Frontiers, 2022, 9(14): 3514-3521.

DOI：10.1039/d2qi00774f

• FORMIC-ACID DECOMPOSITION
• HYDROGEN-PRODUCTION
• IRIDIUM CATALYST
• NANOPARTICLES
• GENERATION
• DEHYDROGENATION
• PALLADIUM
• ENERGY
• NANOCATALYST
• HYDROLYSIS

Sodium formate (SF) has been used for a long time as a technological additive for H-2 release in the dehydrogenation of formic acid. Formic acid is often synthesized from concentrated sulfuric acid and anhydrous sodium formate at low temperatures, followed by distillation. Therefore, the exploration of direct H-2 production by SF decomposition is a practical means of significant importance. Herein, a simple and surfactant-free method was successfully employed to construct M16Pd1/C bimetallic nanomaterials for direct H-2 production by SF decomposition in the presence of acetic acid. In particular, the optimal nanocatalyst Ag16Pd1/C showed the highest activity for SF decomposition, with 76.5% H-2 yield, 100% H-2 selectivity and a TOF of 753 h(-1) at 60 degrees C, whereas no hydrogen was produced from pure sodium formate solution without acetic acid under the same conditions. Interestingly, a highly selective "on-off" switch for on-demand H-2 release from SF was successfully developed by pH regulation.