Evidence for perimeter sites over SmOx-modified Rh(100) surface by CO chemisorption

Jiang, Zhiquan; Zhou, Wei; Tan, Dali; Zhai, Runsheng; Bao, Xinhe

doi:10.1016/j.susc.2004.07.021

Cited by 26 publications

(17 citation statements)

References 44 publications

(56 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some studies report the growth of REO in the form of ultrathin films on metallic substrates and point out interesting aspects related to those observed in cerium oxide ultrathin films. Temperature programmed desorption (TPD) allows to monitor oxygen release in these REO films, while in the case of cerium oxide the release is considered to be too fast to be monitored [102,103].…”

Section: Rare Earth Oxide Two-dimensional Filmsmentioning

confidence: 99%

“…Samarium oxide in the form of an ultrathin film has been shown to form by controlled oxidation of surface SmRh and SmRu surface alloys, in turn obtained by heating metallic Sm films deposited on Rh(100) and Ru(0001) surfaces respectively, leading to a SmO x phase [102][103][104]. On both substrates specific sites for CO absorption have been shown to form at the perimeter of the samarium oxide ultrathin islands, due to the interaction with the underlying metal [102,103]. A more recent study by Jhang et al investigated samarium oxide films grown on a Pt(111) substrate by reactive deposition at 600 K followed by annealing in O 2 (P~10 -7 mbar) at 1000 K [105].…”

Section: Rare Earth Oxide Two-dimensional Filmsmentioning

confidence: 99%

See 1 more Smart Citation

Reducible Oxides as Ultrathin Epitaxial Films

Luches

D’Addato

2016

Oxide Materials at the Two-Dimensional Limit

View full text Add to dashboard Cite

This chapter reviews and discusses recent work on two-dimensional films of reducible oxides supported on metal substrates. In general, peculiar chemical and structural phases, different from the bulk ones, can be stabilized depending on the oxygen chemical potential, on kinetic processes and on the specific substrate used. A peculiarity of reducible oxides is that the observed phases can often be reversibly transformed one into the other by applying reducing and oxidizing treatments.

show abstract

Section: Rare Earth Oxide Two-dimensional Filmsmentioning

confidence: 99%

Section: Rare Earth Oxide Two-dimensional Filmsmentioning

confidence: 99%

Reducible Oxides as Ultrathin Epitaxial Films

Luches

D’Addato

2016

Oxide Materials at the Two-Dimensional Limit

View full text Add to dashboard Cite

show abstract

“…6 Besides this, Sm 2 O 3 , because of its reasonably high relative permittivity (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30), good thermal stability, and large conduction band (>2 eV), 10 has been predicted to have applications in solar cells, 7 nanoelectronics, 8 semiconductor gases, gate insulators and biochemical sensors. 12 Wu et al have recently reported sensing characteristics of high-k Sm 2 O 3 based electrolyteinsulator-semiconductors for urea detection. 11 The Sm 2 O 3 nanocrystals have been found to act as active catalysts for CO hydrogenation and as a C 2 -oxygenated compound.…”

Section: Introductionmentioning

confidence: 99%

A highly efficient rare earth metal oxide nanorods based platform for aflatoxin detection

et al. 2013

View full text Add to dashboard Cite

The nanostructured rare earth metal oxide (samarium oxide, n-Sm 2 O 3 ) nanorods, prepared using a forced hydrolysis technique, have been electrophoretically deposited (EPD) onto an indium-tin-oxide (ITO) glass substrate. This novel platform has been utilized for co-immobilization of monoclonal antibodies of aflatoxin B 1 (Ab-AFB 1 ) and bovine serum albumin (BSA) via electrostatic interactions for food toxin (AFB 1 ) detection. Thus prepared n-Sm 2 O 3 nanorods have been characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopic techniques. The results of electrochemical response studies of the BSA/Ab-AFB 1 /n-Sm 2 O 3 /ITO immunoelectrode obtained as a function of aflatoxin concentration reveal a linearity of 10-700 pg mL À1 , a detection limit of 57.82 pg mL À1 cm À2 , a response time of 5 s and a sensitivity of 48.39 mA pg À1 mL À1 cm À2 with a regression coefficient of 0.961. The association constant (K a ) for antigen-antibody interactions obtained is 47.9 pg mL À1 , which indicates high affinity of antibodies towards the antigen (AFB 1 ). The application of n-Sm 2 O 3 modified electrode for immunosensor analysis offers a novel platform and efficient strategy for the application of rare earth metal oxide materials in bioelectronics.

show abstract

“…high absorbance of infrared radiation [4], catalytical activity and chemical stability at high temperatures [5,6] and magnetic behaviour in composite materials [7,8]. For example, in catalysis, samarium oxide nanostructures appear to be one of the most active catalysts for C 2 -oxygenated compounds, CO hydrogenation and other oxidation reactions [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Room temperature synthesis of samarium oxide nanotubes using cost-effective electroless deposition method

Boehme¹,

Ionescu

et al. 2012

Journal of Experimental Nanoscience

View full text Add to dashboard Cite

Nanotubes consisting of samarium oxide (SmNT) were fabricated by electroless deposition using ion track-etched polycarbonate templates. To achieve nanotubes with thin walls and small surface roughness, the tubes were generated by a procedure containing several steps under aqueous conditions. The approach reported below will process open-ended nanotubes with well-defined outer diameter and wall thickness.

show abstract

Evidence for perimeter sites over SmOx-modified Rh(100) surface by CO chemisorption

Cited by 26 publications

References 44 publications

Reducible Oxides as Ultrathin Epitaxial Films

Reducible Oxides as Ultrathin Epitaxial Films

A highly efficient rare earth metal oxide nanorods based platform for aflatoxin detection

Room temperature synthesis of samarium oxide nanotubes using cost-effective electroless deposition method

Contact Info

Product

Resources

About