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Updated: Feb 21, 2026

Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods
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マイクロ環境の問題:CO削減製品によるイリジウムアノド触媒の不安定化

Attila Kormányos1, Mohd Monis Ayyub1, Bence Kutus2

  • 1Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich square 1, Szeged H-6720, Hungary.

Journal of the American Chemical Society
|February 19, 2026
PubMed
まとめ

CO2電解におけるイリジウムアノド触媒の安定性は,燃料クロスオーバーによって損なわれます. エタノールとアセタルデヒドは,保護性酸化物層の形成に干渉することによって,イリジウムの溶解を加速します.

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Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation

Introduction
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
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The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
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Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
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