articleACS NanoJan 5, 2026Closed access

Breaking the Energy Linear Relationships between C≡C and C═C Bonds over Porous Intermetallic Pd 2 Ga Metallene Boosting Alkynol Semihydrogenation

Chemical Synthesis Lab · Zhejiang University of Technology

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Abstract

The electrochemical semihydrogenation (ECSH) of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE), using water as a hydrogen source, offers a sustainable pathway for chemical synthesis. However, conventional Pd-based catalysts are limited by the linear scaling relationships (LSRs) between the adsorption energies of C≡C and C═C bonds, often leading to overhydrogenation into 2-methyl-3-butan-2-ol (MBA) and, thus, reduced selectivity toward MBE. In this work, we report a solvothermal approach for synthesizing porous intermetallic Pd2Ga (PI–Pd2Ga) metallene as a high-performance catalyst for the ECSH of MBY to MBE. The PI–Pd2Ga metallene exhibits an optimized electronic structure and an expanded Pd…

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8
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FWCI
45.82
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100%
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9

Topics & keywords

Keywords
  • Intermetallic
  • Catalysis
  • Selectivity
  • Boosting (machine learning)
  • Faraday efficiency
  • Porosity
  • Work (physics)
  • Substrate (aquarium)
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