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News and events

News

  • Tracking deactivation of zeolite beta with and without a detailed structure model: XRD analysis and in situ studies Dec. 1, 2023 3:42 PM

    X-ray diffraction is extremely powerful to study the structure of well-ordered, crystalline materials. In this paper, researchers from the Catalysis Section, NAFUMA, the Swiss Norwegian Beamlines, and Haldor Topsoe A/S take it one step further, by developing models for advanced diffraction studies of a disordered material, namely the beta zeolite. Despite the tremendous structural complexity caused by the disorder, these new models make it possible to resolve the degree of deactivation of the zeolite catalyst from a single diffractogram.

    Microporous and Mesoporous Materials (2023).

  • Variable temperature in situ TEM mapping of the thermodynamically stable element distribution in bimetallic Pt–Rh nanoparticles Sep. 25, 2023 2:42 PM

    In-situ TEM experiments shows that the tendency for elemental mixing- or segregation to occur in Pt–Rh nanoparticles depends on the nanoparticle size and temperature. The smaller nanoparticles ( ≲ 13 nm) are stable in the solid solution configuration over the entire studied temperature range. Larger nanoparticles ( ≳ 13 nm) tends to segregate when cooled to room temperature. The results are of importance to understand the thermodynamics of this specific Pt–Rh nanoparticle system and it add value towards applications like catalysis, whereof e.g. supported Pt–Rh nanoparticles are attractive candidates for NH 3 slip abatement processes.

    Nanoscale Adv. 5, 5286 (2023).

  • Catalysis group researchers strike gold May 11, 2023 9:47 AM

    New chemical transformations can be catalyzed with molecular gold compounds or gold nanoparticles. Researchers at the catalysis group have reported a simple and robust protocol for the synthesis of gold(III) compounds that are crucial for the development of these catalytic reactions. The synthesis utilizes heating in a microwave oven, and produces a number of new compounds, quickly and cleanly, in a one-step process.

    Dalton Trans. 51, 5082 (2022).

Events

  • Language café Mar. 21, 2024 5:00 PM

    Do you want to learn and practice languages while getting to know people from around the world? Come to the language café then!

  • Language café Apr. 4, 2024 5:00 PM

    Do you want to learn and practice languages while getting to know people from around the world? Come to the language café then!

  • Shut up & write! Apr. 5, 2024 9:00 AM

    Is it difficult to set aside time to write? The Academic Writing Centre organsises structured writing sessions for PhDs and Postdocs.

  • Visit to the Nobel Peace Center Apr. 7, 2024 1:30 PM

    Join us for a guided tour of the Nobel Peace Center, the museum for the Nobel Peace Prize.

  • Norwegian Biodiversity and Genomics Conference 2024 Apr. 8, 2024 12:00 AM

    Welcome to the annual Earth Biogenome Project-Norway conference. During this conference, you can participate in workshops and learn how to use bioinformatics tools to efficiently analyze and interpret genome sequencing data, in addition to hearing from renowned researchers who will share their work in biodiversity and genomics.