Effect of atomic layer deposited zinc promoter on the activity of copper-on-zirconia catalysts in the hydrogenation of carbon dioxide to methanol

Atomic layer deposition of zinc oxide on mesoporous zirconia using zinc(II) acetylacetonate and air

“…57 In another study, a ZnO film was grown via CVD using Zn(acac)2 and O3. 75 A recent study by Arandia et al, 54 related to the current study, reported the beneficial effect of adding ZnO after copper impregnation on catalytic performance for hydrogenation of carbon dioxide to methanol. The study by Arandia et al 54 used Zn(acac)2 and synthetic air to deposit ZnO via ALD, which is explored in more detail in this study.…”

“…49 Recently, Ingale et al, 50 used an extension of ALD, molecular layer deposition, to grow alucone on Ni/SiO2 catalysts to prevent their deactivation during methane dry reforming. Copper-based catalysts have also been modified via ALD ZrO2, 51 Ni, 52 and ZnO, 53,54 to enhance their catalytic activity and selectivity for the hydrogenation of carbon dioxide to methanol. The well-defined surface structure of ALD-made catalysts provides a better understanding of the relationship between the catalytic performance and structural properties of the ALD-made catalysts.…”

“…The well-defined surface structure of ALD-made catalysts provides a better understanding of the relationship between the catalytic performance and structural properties of the ALD-made catalysts. 26,27,45,[51][52][53][54][55][56][57] ZnO is a functional material that can be used in various applications, including optical sensors, solar cells, transparent conductive layers, and heterogenous catalysts. 13,48,[58][59][60][61] Interestingly, in the works by Suntola and co-workers on ALD-made catalysts, zinc was the first element whose growth on ZSM-5 zeolite was attempted via ALD.…”

Asymmetric Coordination Environment Engineering of Atomic Catalysts for CO2 Reduction

“…The popular high-temperature pyrolysis method generally involves the high-temperature calcination of a pre-designed precursor, but it often has unpredictable and ill-defined multiple coordination structures simultaneously due to the influence of the pyrolysis temperature, heating rate, inert atmosphere, and other factors [ 165 , 166 , 167 ]. The ALD method, which has the advantage of high-precision control procedures, also has the non-negligible disadvantages of complex synthesis steps, a handful of substrate selection, high investment, and low productivity [ 168 , 169 , 170 ]. Not negligibly, a suitable choice of supports species will influence the vacancies and defects on the surface to be better utilized for stabilizing isolated metal atoms.…”

A compact von Hámos spectrometer for parallel X-ray Raman scattering and X-ray emission spectroscopy at ID20 of the European Synchrotron Radiation Facility

“…The spectrometer, of course, also allows for other flavors of X-ray spectroscopy, such as RXES, including partial fluorescence yield or high-energy-resolution fluorescence-detected (HERFD) X-ray absorption spectroscopy (XAS) studies (Glatzel & Bergmann, 2005;Arandia et al, 2023) and RIXS [including X-ray magnetic circular dichroism (XMCD and RIXS-MCD) experiments (Sikora et al, 2012)]. However, even though feasible in von Ha ´mos geometry, Johann or Johansson spectrometers may be better suited for resonant techniques (RXES, RIXS) and partial-fluorescence-yield measurements (HERFD XAS).…”