Affiliation:
1. School of Chemistry & Chemical Engineering School of Materials Science and Engineering and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials Institutes of Physical Science and Information Technology Department of Chemistry and Center for Atomic Engineering of Materials Key Laboratory of Structure and Functional Regulation of Hybrid Materials of the Ministry of Education Anhui University Hefei 230601 P. R. China
2. National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
Abstract
AbstractDual‐atom catalysts (DACs) originate unprecedented reactivity and maximize resource efficiency. The fundamental difficulty lies in the high complexity and instability of DACs, making the rational design and targeted performance optimization a grand challenge. Here, an atomically dispersed Pd2 DAC with an in situ generated Pd─Pd bond is constructed by a dynamic strategy, which achieves high activity and selectivity for semi‐hydrogenation of alkynes and functional internal acetylene, twice higher than commercial Lindlar catalyst. Density functional theory calculations and systematic experiments confirms the ultrahigh properties of Pd2 DAC originates from the synergistic effect of the dynamically generated Pd─Pd bonds. This discovery highlights the potential for dynamic strategies and opens unprecedented possibilities for the preparation of robust DACs on an industrial scale.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Anhui Province
Anhui University