Related Experiment Video
Updated: Sep 14, 2025

HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin
Published on: July 23, 2016
Electrocatalytic acetylene semihydrogenation triggered by double exchange interaction over heteronuclear
Yiran Shi1, Xinjie Gao1, Shaokun Zhou1
1Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi'an, Shaanxi 710129, PR China.
Abstract:
Heteronuclear metal-organic frameworks (MOF) possesses the different polyhedral structural units readily trigger the unique double-exchange interaction (DEI), which is anticipated to activate inert CC triple bond and further enhance the electrocatalytic acetylene semihydrogenation activity. Herein, a novel BTC-Co-O-Cu-BTA (BTC = benzene-1,3,5-tricarboxylic acid; BTA = 1,2,4,5 benzene tetraamine) MOF is designed that realized a remarkably ameliorative ethylene partial current density of -149.4 mA cm-2 and a large ethylene Faradaic efficiency of 91.1 % at -0.8 V vs. RHE compared with the pristine homonuclear MOF. Systematic characterizations corroborate that the DEI handily transforms static Co3+-O-Cu2+ to vibronic double-exchange of Co2+-O-Cu3+ with the eg2 and eg0 electron filling state of Co and Cu sites, respectively. Subsequently, the lone-pair electron of eg orbital initially donate to the π⁎ antibonding orbital of acetylene molecule, thereafter the generated empty eg orbital accept the acetylene π orbital electron, guaranteeing the effective activation of acetylene to ethylene on the precisely devised heteronuclear MOF.
More Related Videos
10:52Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
Published on: July 27, 2022
06:46Facile Preparation of 2Z,4E-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
Related Concept Videos
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
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...
Reduction of Alkenes: 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.
The hydrogenation process takes place on the...
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
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.
Thermal Electrocyclic Reactions: Stereochemistry
Selection Rules: Thermal Activation
Conjugated systems containing an even number of π-electron pairs undergo a conrotatory ring closure. For example, thermal electrocyclization of (2E,4E)-2,4-hexadiene, a conjugated diene containing two π-electron pairs, gives trans-3,4-dimethylcyclobutene.
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Reduction of Benzene to Cyclohexane: Catalytic Hydrogenation