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Effect of a modified 13X zeolite support in Pd-based catalysts for hydrogen oxidation at room temperature

Younghee Jang1, Sang Moon Lee1,2, Sung Su Kim2

  • 1Department of Environmental Energy Engineering, Graduate School of Kyonggi University 154-42, Gwanggyosan-ro, Yeongtong-gu Suwon-si Gyeonggi-do Korea.

RSC Advances
|May 2, 2022
PubMed

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The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
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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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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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