into CuO's VB, Meanwhile, which carry obuetcoauxisdeaTtiioOn2r'seVacBtioisnms woirtehpwoastietirvteotfhoarnmCaupOro'st,otnheanhdolienstetrrmanesdfeiartefrpormodTuicOts2.'sTVhiBs causes the photogenerated electrons lated of holes at the valence band of to be CuO. accumulated at th...
From XPS and fitting curves, we can calculate that the atomic ratio of Sr and Cu was 2:1, which correspond mtgolaatsihnselsyuthcboesontrrtaaetitenicuZanlndv,eaSrliu,eeaxnc(SdersOs2CivfuerOopm3olpitsahhretinibcglluepesr)co.uMcrevedeau,nriwne dahinicldeat,nitnohgeetxfhitlaemtrntshaaelmefi...
However, the catalysts which contained high Cu content offered high benzyl chloride conversions but low diphenylmethane selectivity. In a recent publication [20], we synthesized mesoporous iron and nickel oxide supported ZrO2 by a simple co-precipitation method. Formation of highly dispersed Fe3+-ZrO2...
The phenomenon indicated that the Cu2O-CuO heterojunction of Cu2O-CuO/α-MnO2-T catalysts greatly contributed to enhanced CO oxidation activity at low temperature, which was on account of the synergetic effect of the Cu2O-CuO heterojunction [7,34]. The synergistic effect of Cu+ and Cu2+ was ...
Co2+, Co3+and S2−. The results are in agreement with previous studies on NiCo2S4 [45]. (a) (b) (c) (d) FigureFi4g.uXre-r4a.yXp-rhaoytpoheloetcoterloecntrsopnecsptreocstrcoospcyop(yXP(XSP) Ss)psepcetrcatraofo(fa()a)CCuu22pp;,((bb))NNii 22pp,; ((cc)) CCoo22ppa...
Introduction The heterogeneous catalytic oxidation of carbon monoxide (CO) is an important reaction for CO removal in many environmental and industrial applications such as air purification, closed-cycle CO2 lasers, the purification of hydrogen from CO traces in polymer electrolyte membrane fuel cell ...
Keywords: strontium titanate (SrTiO3); co-catalyst; photocatalytic; hydrogen evolution 1. Introduction It is well known that photocatalytic hydrogen evolution from water splitting has received much attention in recent years for its potential application in providing hydrogen as a clean and renewable ...
This leads to the formation of stabilised Cu+ species, which are the active species involved in the CO adsorption, while cerium oxide provides oxygen vacancies [29]. The redox parameters of the CuO-CeO2 systems can be strongly influenced by the method of preparation of the catalysts, attaining...
Thus, Cu-Ce-O based catalysts have shown high efficiency in the preferential oxidation of CO [15,16] and in the total oxidation of different types of VOCs such as alkanes [17–19], aromatics [20,21] and polycyclic aromatic hydrocarbons [22,23]. In this paper, we describe the ...
Raman spectra performed at 488 nm excitation contains intense peaks attributed to glass substrate (444 cm−1, 783 cm−1, 1099 cm−1); two peaks at 297 Fcmigu−1rean2.dX3R6D1ppcaamtttte−er1rnncssaonoffdbdeeeppoaossistiitegeddnsesadammptoplelesC:su:SnSOnOOx[/5xC6/u–CO5u8aO...