Jump to main content
Jump to site search

Issue 1, 2012
Previous Article Next Article

In situsolid-state NMR for heterogeneous catalysis: a joint experimental and theoretical approach

Author affiliations

Abstract

In situ solid-state NMR is a well-established tool for investigations of the structures of the adsorbed reactants, intermediates and products on the surface of solid catalysts. The techniques allow identifications of both the active sites such as acidic sites and reaction processes after introduction of adsorbates and reactants inside an NMR rotor under magic angle spinning (MAS). The in situ solid-state NMR studies of the reactions can be achieved in two ways, i.e. under batch-like or continuous-flow conditions. The former technique is low cost and accessible to the commercial instrument while the latter one is close to the real catalytic reactions on the solids. This critical review describes the research progress on the in situ solid-state NMR techniques and the applications in heterogeneous catalysis under batch-like and continuous-flow conditions in recent years. Some typical probe molecules are summarized here to detect the Brønsted and Lewis acidic sites by MAS NMR. The catalytic reactions discussed in this review include methane aromatization, olefin selective oxidation and olefin metathesis on the metal oxide-containing zeolites. With combining the in situ MAS NMR spectroscopy and the density functional theoretical (DFT) calculations, the intermediates on the catalyst can be identified, and the reaction mechanism is revealed. Reaction kinetic analysis in the nanospace instead of in the bulk state can also be performed by employing laser-enhanced MAS NMR techniques in the in situ flow mode (163 references).

Graphical abstract: In situ solid-state NMR for heterogeneous catalysis: a joint experimental and theoretical approach

Back to tab navigation

Publication details

The article was received on 10 Jan 2011 and first published on 11 Jul 2011


Article type: Critical Review
DOI: 10.1039/C1CS15009J
Chem. Soc. Rev., 2012,41, 192-210

  •   Request permissions

    In situ solid-state NMR for heterogeneous catalysis: a joint experimental and theoretical approach

    W. Zhang, S. Xu, X. Han and X. Bao, Chem. Soc. Rev., 2012, 41, 192
    DOI: 10.1039/C1CS15009J

Search articles by author

Spotlight

Advertisements