Get In-situ Characterization of Heterogeneous Catalysts PDF

By José A. Rodriguez, Jonathan C. Hanson, Peter J. Chupas

ISBN-10: 1118000161

ISBN-13: 9781118000168

Helps researchers advance new catalysts for sustainable gasoline and chemical production

Reviewing the most recent advancements within the box, this ebook explores the in-situ characterization of heterogeneous catalysts, allowing readers to take complete benefit of the delicate innovations used to review heterogeneous catalysts and response mechanisms. In utilizing those innovations, readers can discover ways to increase the selectivity and the functionality of catalysts and the way to arrange catalysts as successfully as attainable, with minimal waste.

In-situ Characterization of Heterogeneous Catalysts gains contributions from major specialists within the box of catalysis. It starts with an creation to the basics after which covers:

  • Characterization of digital and structural homes of catalysts utilizing X-ray absorption tremendous constitution spectroscopy
  • ideas for structural characterization in response to X-ray diffraction, neutron scattering, and pair distribution functionality analysis
  • Microscopy and morphological studies
  • suggestions for learning the interplay of adsorbates with catalyst surfaces, together with infrared spectroscopy, Raman spectroscopy, EPR, and average strain XPS
  • Integration of options that offer details at the structural homes of catalysts with recommendations that facilitate the research of floor reactions

Throughout the publication, unique examples illustrate how thoughts for learning catalysts and response mechanisms should be utilized to resolve a extensive diversity of difficulties in heterogeneous catalysis. particular figures support readers higher know the way and why the options mentioned within the e-book paintings. on the finish of every bankruptcy, an intensive set of references results in the first literature within the field.

By explaining step-by-step smooth concepts for the in-situ characterization of heterogeneous catalysts, this booklet permits chemical scientists and engineers to higher comprehend catalyst habit and layout new catalysts for eco-friendly, sustainable gasoline and chemical construction

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Extra resources for In-situ Characterization of Heterogeneous Catalysts

Sample text

In the case of inorganic catalysts used in the industry and in model studies, the main effort in the TR-XAS methodology has been the push for fast data collection methods due to the need for in-situ or operando investigations [1]. To study the structural changes in the reactions that take place in the subsecond regime, TR-XAS was developed in energy-dispersive EXAFS (EDE) and energy-scanning, or quick EXAFS (QEXAFS) modes. In EDE, described in greater detail in Chapter 3 of this book, the sample is illuminated by the polychromatic beam and thus one can take repeated snapshots of the entire EXAFS spectrum at a timescale limited by the detector readout time and the photon flux, a few milliseconds [17–22].

Et al. (2001) Redox behavior of copper oxide/zinc oxide catalysts in the steam reforming of methanol studied by in situ X-ray diffraction and absorption spectroscopy, J. , 203, 133–149. [49] Campbell, C. T. (1994) Micro- and macro-kinetics: their relationship in heterogeneous catalysis, Top. , 1, 353–366. , Rodriguez, J. A. (2007) Water-gas shift reaction on Metal nanoparticles and surfaces, J. Chem. , 126, 164705. [51] Rodriguez, J. , et al. (2007) Water-gas shift reaction on Cu and Au nanoparticles supported on CeO2(111) and ZnO(000ī): intrinsic activity and importance of support interactions, Angew.

U. 9. (a) Co K-edge EXAFS spectrum of CoC2O4 · 2H2O measured in situ within 250 ms prior to the initiation of a decomposition reaction together with the Co metal reference measured simultaneously. (b) In-situ Co K-edge absorption spectra measured during the thermal decomposition of CoC2O4 · 2H2O in Ar + 4% H2. Each spectrum was measured within 250 ms. The displayed spectra belong to the temperature region between approximately 340 and 400°C. , Grunwaldt, J. , Frahm, R. (2005) Physica Scripta, T115, 831–833.

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In-situ Characterization of Heterogeneous Catalysts by José A. Rodriguez, Jonathan C. Hanson, Peter J. Chupas

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