Coupling Dimethylglyoxime to Enhance Coordination Bonds of Pd Single-Atom Catalyst for Solving Stability and Activity Conflict DOI

Junxiang Lu,

Yuting Liu, Shasha Zhang

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 30, 2025

Regulating the strength of coordination bonds plays an important role in synergizing activity and stability single-atom catalysts (SACs) but is often limited due to atoms from inorganic carrier lattice being tough modify. It fascinating yet rarely explored immobilize organic molecules on for modulating character bonds. Herein, a valid inorganic-organic coupling strategy developed enhance Pd-O within Pd-SAC reconciling stability. Nickel hydroxide enriched with Ni2+ vacancies utilized bind Pd centers, dimethylglyoxime (DMG) its OH groups by H2 reduction, forming Pd-O-DMG structure. Compared pristine structure, whose descends greatly during recycling process, structure makes unchanged after 6 used times Suzuki-Miyaura reaction. The has mild economic reaction conditions (at 70 °C under air ethanol without excess base) good substrate tolerance. Further theoretical calculations show that coupled DMG induces hydrogen O oxazole around centers thus strengthens exhibit activity.

Язык: Английский

Coupling Dimethylglyoxime to Enhance Coordination Bonds of Pd Single-Atom Catalyst for Solving Stability and Activity Conflict DOI

Junxiang Lu,

Yuting Liu, Shasha Zhang

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 30, 2025

Regulating the strength of coordination bonds plays an important role in synergizing activity and stability single-atom catalysts (SACs) but is often limited due to atoms from inorganic carrier lattice being tough modify. It fascinating yet rarely explored immobilize organic molecules on for modulating character bonds. Herein, a valid inorganic-organic coupling strategy developed enhance Pd-O within Pd-SAC reconciling stability. Nickel hydroxide enriched with Ni2+ vacancies utilized bind Pd centers, dimethylglyoxime (DMG) its OH groups by H2 reduction, forming Pd-O-DMG structure. Compared pristine structure, whose descends greatly during recycling process, structure makes unchanged after 6 used times Suzuki-Miyaura reaction. The has mild economic reaction conditions (at 70 °C under air ethanol without excess base) good substrate tolerance. Further theoretical calculations show that coupled DMG induces hydrogen O oxazole around centers thus strengthens exhibit activity.

Язык: Английский

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