What are the reactions of molecular hydrogen?
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Hydrogenation reactions involve the reaction between molecular hydrogen and an organic or inorganic substrate. These reactions are exothermic but typically occur at negligible rates at ordinary temperatures. Catalysts are used to activate hydrogen and facilitate these reactions, with many metal oxides and metal complexes serving as effective catalysts . Additionally, alkali-hydrogen reactions, such as Li + H2, Na + H2, K + H2, Rb + H2, and Cs + H2, are initiated by electronic excitation of the alkali atom, leading to non-adiabatic processes in reaction dynamics . Quantum-mechanical tunneling effects due to the wave character of hydrogen atoms or molecules can also play a role in chemical reactions, allowing for reactions to occur by passing through potential energy barriers . Furthermore, the hydrogen reaction has been investigated through electrocatalysis and quantum chemistry, enabling quantitative calculations of reaction rates and providing insights into hydrogen adsorption and catalytic activity .
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| The paper discusses the reactions of alkali atoms (Li, Na, K, Rb, Cs) with molecular hydrogen (H2). | |
| The reactions of molecular hydrogen include classical reactions and tunneling reactions due to the wave property of hydrogen atoms or molecules. | |
33 Citations | The reactions of molecular hydrogen involve the ion core of the Rydberg molecule reacting with the ground state molecule, with the Rydberg electron acting as a spectator. |
| Hydrogenation reactions involve the reaction between molecular hydrogen and an organic or inorganic substrate. |
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