01889nas a2200181   4500008004100000022001400041245011200055210006900167260000800236300001600244490000800260520123600268100001801504700001701522700002301539700001801562856012701580       2023                        eng d  a1932-744700aMorphology-dependent catalysis by Co3O4 nanostructures in atmospheric pressure carbon dioxide hydrogenation0 aMorphologydependent catalysis by Co3O4 nanostructures in atmosph  cJUL  a13055-130640 v1273 a<p>
	In this work, three Co3O4 nanostructureswith different morphologies (cubes, rods, and sheets) were synthesizedusing a hydrothermal method and tested for the CO2 hydrogenationreaction. The physicochemical properties of the structured Co3O4 were well characterized by X-ray diffraction(XRD), Raman spectroscopy, field-emission scanning electron microscopy(FESEM), transmission electron microscopy (TEM), high-resolution transmissionelectron microscopy (HRTEM), hydrogen temperature-programmed reduction(H-2-TPR), and X-ray photoelectron spectroscopy (XPS) techniques.Based on the characterization, cube, rod, and sheet Co3O4 nanostructures were found to expose the (100), (110),and (112) planes, respectively. The effect of cobalt oxide morphologieswith different exposed surfaces on the activity and selectivity towardCO(2) hydrogenation reaction in a plug-flow reactor operatedbetween 200 and 400 &amp; DEG;C under atmospheric pressure conditionswas explored. The results establish a correlation of the catalyticactivity with morphological structures in the order rods &gt; sheets&gt; cubes. H-2-TPR and XPS studies demonstrated that thehighreducibility of Co3O4 rod makes it an excellentcatalyst for CO2 hydrogenation.</p>
1 aGupta, Sharad1 aJain, Preeti1 aJagadeesan, Dinesh1 aVinod, C., P.  uhttps://library.ncl.res.in/content/morphology-dependent-catalysis-co3o4-nanostructures-atmospheric-pressure-carbon-dioxide