A series of mixed cobalt spinel catalysts (M x Co 3? O 4 = Cr, Fe, Mn, Ni, Cu, Zn)) was synthesized and tested in the CO-PROX reaction sole CO oxidation H 2 as references.

New Pt-Co catalysts of hydrogen purification from CO impurities for fuel cells were fabricated via the deposition monodispersed 1.7 nm Pt nanoparticles using laser electrodispersion on Co-modified ZSM-5 prepared by Co(CH3COO)2 impregnation. The structure zeolites was studied low-temperature N2 sorption, TEM, EDX, and XPS methods. comparative analysis samples with different (0.01–0.05 wt.%) Co (...

We have studied the effect of different supports (CeO2, ZrO2, SiC, SiO2 and Al2O3) on catalytic performance phase stability Co3O4 nanoparticles during preferential oxidation CO (CO-PrOx) under H2-rich gas environments temperatures. Our results show that Co3O4/ZrO2 has superior activity, but transforms to Co0 consequently forms CH4 at relatively low The least reduced methanation active catalyst ...

The catalytic performance of the bare Co 3 O 4 and mixed cobalt-spinel catalysts (M x 3? ; M = Cr, Mn, Fe, Ni, Cu, Zn) in CO-PROX process was investigated temperature-programmed surface reaction (TPSR) mode using 18 2 as an oxidant.

The viability of gold supported on lanthanum-modified HAP catalysts is investigated for CO preferential oxidation (PROX) in H2-rich stream. All samples comprise small nanoparticles (NPs) Au (< 4 nm). Addition La enhances the chemisorption CO, whereas it lowers that H2 and H2O. Moreover, lanthanum improves reducibility mobility oxygen. FTIR studies show under conditions exists two distinct forms...

Modeling of semantic space is a new and challenging research topic both in cognitive science and linguistics. Existing approaches can be classified into two different types according to how the calculation are done: either a word-by-word co-occurrence matrix or a word-by-context matrix (Riordan 2007). In this paper, we argue that the existing popular distributional semantic model (vector space ...

Although prox-regular functions in general are nonconvex, they possess properties that one would expect to find in convex or lowerC2  functions. The class of prox-regular functions covers all convex functions, lower C2  functions and strongly amenable functions. At first, these functions have been identified in finite dimension using proximal subdifferential. Then, the definition of prox-regula...

Dielectric Barrier Discharges (DBD) operated at atmospheric pressure and working at reduced temperatures (T < 115 degrees C) and a copper-manganese oxide catalyst are combined for the direct decomposition and the steam reforming of methanol (SRM) for hydrogen production and for the preferential oxidation of CO (CO-PROX).

Catalytic, low temperature preferential oxidation (PROX) of carbon monoxide by aqueous [5,10,15,20-tetrakis(4-sulfonatophenyl)-2,3,7,8,12,13,17,18-octafluoroporphyrinato]rhodium(III) tetrasodium salt, (1[Rh(III)]) and [5,10,15,20-tetrakis(3-sulfonato-2,6-difluorophenyl)-2,3,7,8,12,13,17,18-octafluoroporphyrinato]rhodium(III) tetrasodium salt, (2[Rh(III)]) is reported. The PROX reaction occurs a...