The influence of strongly reducing conditions on strong metal-support interactions in Cu/ZnO catalysts used for methanol synthesis

Physical Chemistry Chemical Physics : PCCP
R Naumann d'AlnoncourtMartin Muhler

Abstract

A systematic series of binary and ternary copper catalysts was investigated using the methanol synthesis reaction at atmospheric pressure. Strong metal-support interactions between copper and zinc oxide induced by strongly reducing conditions were probed by the adsorption of carbon monoxide, which was monitored qualitatively and quantitatively by a combination of microcalorimetry, temperature-programmed desorption experiments and Fourier transform infrared spectroscopy. For the zinc oxide-containing catalysts, the pretreatment in flowing carbon monoxide at 493 K resulted in a severe decoration of the copper metal particles with ZnOx adspecies, whereas after methanol synthesis at 493 K the state of the copper was essentially identical to that seen after hydrogen reduction. Copper was always found to be present in its zero-valent state.

References

May 13, 2003·Chemistry : a European Journal·Bettina BemsRobert Schlögl

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Citations

Mar 29, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Zhimin LiuMartin Muhler
Oct 3, 2014·The Journal of Chemical Physics·Johannes Frenzel, Dominik Marx
May 21, 2016·Science·Sebastian KuldJens Sehested
May 26, 2017·Chemistry : a European Journal·Jun HuHuilin Wan
Apr 15, 2016·Physical Chemistry Chemical Physics : PCCP·Timur KandemirMalte Behrens
Oct 6, 2016·Nature Communications·Roy van den BergKrijn P de Jong
Dec 25, 2009·International Journal of Computer Assisted Radiology and Surgery·Marc Christian MetzgerMatthias Teschner
Jul 19, 2012·Physical Chemistry Chemical Physics : PCCP·Malte BehrensRobert Schlögl
Apr 21, 2012·Science·Malte BehrensRobert Schlögl
Jul 12, 2020·Chemistry : a European Journal·Geoffrey A OzinAbdinoor Jelle
Nov 2, 2014·Physical Chemistry Chemical Physics : PCCP·Luis Martínez-SuárezDominik Marx
Aug 6, 2020·Nature Communications·Daniel LaudenschlegerMartin Muhler
Apr 4, 2020·The Journal of Chemical Physics·Konstantin M SchüttlerR Jürgen Behm
Mar 6, 2021·Nature Communications·Núria J DivinsBeatriz Roldan Cuenya
Jul 20, 2021·ACS Applied Materials & Interfaces·Junxian GaoJeffrey P Greeley
Sep 12, 2019·Journal of the American Chemical Society·Young Feng LiGeoffrey A Ozin
Aug 21, 2020·Angewandte Chemie·Robert Schlögl

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