TY - JOUR
T1 - Study of copper nanoparticles formation on supports of different nature by UV-Vis diffuse reflectance spectroscopy
AU - Pestryakov, A. N.
AU - Petranovskii, V. P.
AU - Kryazhov, Andrey Nikolaevich
AU - Ozhereliev, O.
AU - Pfänder, N.
AU - Knop-Gericke, A.
PY - 2004/2/9
Y1 - 2004/2/9
N2 - Supported copper particles are widely used in heterogeneous catalysis. Influence of supports of different nature on the Cu particles formation is studied by the methods of UV-Vis spectroscopy of diffuse reflectance, XRD and electron microscopy. Different states of supported copper have been identified by UV-Vis spectroscopy: absorption bands at 250 (Cu+), 320-370 and 400-440 (charge transfer bands of O-Cu-O and Cu-O-Cu complexes), 520-580 (Cun plasmon resonance) and 620-850 nm (d-d transitions in Cu 2+ ions). The size of Cu clusters and Cun/Cu n δ+ ratio strongly depends on the support nature.
AB - Supported copper particles are widely used in heterogeneous catalysis. Influence of supports of different nature on the Cu particles formation is studied by the methods of UV-Vis spectroscopy of diffuse reflectance, XRD and electron microscopy. Different states of supported copper have been identified by UV-Vis spectroscopy: absorption bands at 250 (Cu+), 320-370 and 400-440 (charge transfer bands of O-Cu-O and Cu-O-Cu complexes), 520-580 (Cun plasmon resonance) and 620-850 nm (d-d transitions in Cu 2+ ions). The size of Cu clusters and Cun/Cu n δ+ ratio strongly depends on the support nature.
UR - http://www.scopus.com/inward/record.url?scp=0842299420&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0842299420&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2003.12.077
DO - 10.1016/j.cplett.2003.12.077
M3 - Article
AN - SCOPUS:0842299420
VL - 385
SP - 173
EP - 176
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 3-4
ER -