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  1. No Access

    Article

    Process Improvements in Methanol Oxidation to Formaldehyde: Application and Catalyst Development

    Compared with oxide catalysts for many other selective oxidation and ammoxidation processes, the commercial iron molybdate type catalyst for the oxidation of methanol to formaldehyde has an outstanding perform...

    Arne Andersson, Johan Holmberg, Robert Häggblad in Topics in Catalysis (2016)

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    Chapter

    Combination of many-body perturbation theory and quantum electrodynamics

    A procedure for energy-dependent perturbation expansion has been developed, based upon the covariant evolution operator method. This makes it possible to treat energy-dependent perturbations very much like the...

    Ingvar Lindgren, Johan Holmberg, Sten Salomonson in Péter R. Surján (2016)

  3. No Access

    Article

    Combination of many-body perturbation theory and quantum electrodynamics

    A procedure for energy-dependent perturbation expansion has been developed, based upon the covariant evolution operator method. This makes it possible to treat energy-dependent perturbations very much like th...

    Ingvar Lindgren, Johan Holmberg, Sten Salomonson in Theoretical Chemistry Accounts (2015)

  4. No Access

    Article

    Substituted Mo–V(Ti)–Te(Ce)-oxide M2 Catalysts for Propene Ammoxidation

    One of the most effective propane to acrylonitrile ammoxidation catalyst is comprised of the two phases M1 (orthorhombic) Mo7.5V1.5NbTeO29 and M2 (pseudo-hexagonal) Mo4V2Te2O20. Under reaction conditions, the two...

    Robert Häggblad, Jakob B. Wagner, Benoit Deniau, Jean-Marc M. Millet… in Topics in Catalysis (2008)

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    Article

    On the Synergy Effect in MoO3–Fe2(MoO4)3 Catalysts for Methanol Oxidation to Formaldehyde

    Methanol oxidation to formaldehyde was studied over a series of Fe–Mo–O catalysts with various Mo/Fe atomic ratio and the end compositions Fe2O3 and MoO3. The activity data show that the specific activity passes ...

    Emma Söderhjelm, Matthew P. House, Neil Cruise, Johan Holmberg… in Topics in Catalysis (2008)

  6. No Access

    Article

    Catalytic effects in propene ammoxidation achieved through substitutions in the M2 phase of the Mo–V–Nb–Te-oxide system

    M2-type phases M3TeO10 (M = Mo and V), belonging to the Mo–V–Nb–Te-oxide system, were prepared by substituting to various degrees the M-metal with W, Ti, Nb or Fe, and Te with Ce. The compositions were characteri...

    Johan Holmberg, Staffan Hansen, Robert K. Grasselli, Arne Andersson in Topics in Catalysis (2006)

  7. No Access

    Article

    Active centers, catalytic behavior, symbiosis and redox properties of MoV(Nb,Ta)TeO ammoxidation catalysts

    Selective as well as waste forming active centers were defined for MoVNbTeO and MoVTaTeO catalysts in the ammoxidation of propane to acrylonitrile and all catalytic functionalities were assigned to specific el...

    Robert K. Grasselli, Douglas J. Buttrey, James D. Burrington… in Topics in Catalysis (2006)

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    Article

    A Study of the Functionalities of the Phases in Mo–V–Nb–Te Oxides for Propane Ammoxidation

    Catalysts belonging to the Mo–V–Nb–Te–O system have been prepared with both a slurry method and hydrothermal synthesis and were tested for propane and propylene ammoxidation to acrylonitrile. All samples were ...

    Johan Holmberg, Robert K. Grasselli, Arne Andersson in Topics in Catalysis (2003)