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Search for "X-ray photoelectron spectroscopy (XPS)" in Full Text gives 231 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Fabrication of silver nanoisland films by pulsed laser deposition for surface-enhanced Raman spectroscopy

  • Bogusław Budner,
  • Mariusz Kuźma,
  • Barbara Nasiłowska,
  • Bartosz Bartosewicz,
  • Malwina Liszewska and
  • Bartłomiej J. Jankiewicz

Beilstein J. Nanotechnol. 2019, 10, 882–893, doi:10.3762/bjnano.10.89

Graphical Abstract
  • measurements of the chemical composition of the fabricated SNIFs by using X-ray photoelectron spectroscopy (XPS) and their optical properties by using UV–vis spectroscopy. Finally, we describe the SERS performance of SNIFs in the measurements of para-mercaptoaniline (pMA) molecules. Results and Discussion
  • deposited silver layers X-ray photoelectron spectroscopy (XPS) was used (XPS spectrometer, Prevac Company). The measurements were made using an X-ray source equipped with an Al anode emitting X-ray radiation with photon energy of 1486.6 eV. The analysis of registered XPS spectra was performed in the CasaXPS
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Published 16 Apr 2019

Synthesis of MnO2–CuO–Fe2O3/CNTs catalysts: low-temperature SCR activity and formation mechanism

  • Yanbing Zhang,
  • Lihua Liu,
  • Yingzan Chen,
  • Xianglong Cheng,
  • Chengjian Song,
  • Mingjie Ding and
  • Haipeng Zhao

Beilstein J. Nanotechnol. 2019, 10, 848–855, doi:10.3762/bjnano.10.85

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  • -programmed reduction by H2 (H2-TPR) was assessed by using a custom-built TCD apparatus. Before the H2-TPR test, 50 mg catalyst was firstly purged in N2 at 200 °C for 1.5 h. The test was carried out in N2 (containing 6% H2) with a heating rate of 10 °C/min. X-ray photoelectron spectroscopy (XPS) was carried
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Published 11 Apr 2019

On the transformation of “zincone”-like into porous ZnO thin films from sub-saturated plasma enhanced atomic layer deposition

  • Alberto Perrotta,
  • Julian Pilz,
  • Stefan Pachmajer,
  • Antonella Milella and
  • Anna Maria Coclite

Beilstein J. Nanotechnol. 2019, 10, 746–759, doi:10.3762/bjnano.10.74

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  • reported using the same color scales [55]. For chemical analysis of the obtained thin films, Fourier-transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) were performed. For the FTIR analysis, a Bruker IFS 66v/S was adopted. For each spectrum, 1000 scans were recorded in transmission mode
  • with a resolution of 4 cm−1 between 400 cm−1 and 4000 cm−1. All spectra were baseline corrected and normalized to the film thickness. Surface chemical composition was investigated by X-ray photoelectron spectroscopy (XPS). Analyses were performed with a Scanning XPS Microprobe (PHI 5000 Versa Probe II
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Published 21 Mar 2019

Hydrophilicity and carbon chain length effects on the gas sensing properties of chemoresistive, self-assembled monolayer carbon nanotube sensors

  • Juan Casanova-Cháfer,
  • Carla Bittencourt and
  • Eduard Llobet

Beilstein J. Nanotechnol. 2019, 10, 565–577, doi:10.3762/bjnano.10.58

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  • thiols [28]. Material characterization The hydrophilicity of the gas-sensitive coatings was evaluated using an optical tensiometer from Biolin Scientific. Their chemical composition was characterized by Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). Raman spectrometry was performed
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Published 27 Feb 2019

A porous 3D-RGO@MWCNT hybrid material as Li–S battery cathode

  • Yongguang Zhang,
  • Jun Ren,
  • Yan Zhao,
  • Taizhe Tan,
  • Fuxing Yin and
  • Yichao Wang

Beilstein J. Nanotechnol. 2019, 10, 514–521, doi:10.3762/bjnano.10.52

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  • (SmartLab, Rigaku Corporation) with Cu Ka radiation. X-ray photoelectron spectroscopy (XPS, Shimadzy Axis Ultra) was applied to investigate the chemical valence states and compositions of the sample. Scanning electron microscopy (SEM, Hitachi S4800) and high-resolution transmission electron microscopy
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Published 21 Feb 2019

Temperature-dependent Raman spectroscopy and sensor applications of PtSe2 nanosheets synthesized by wet chemistry

  • Mahendra S. Pawar and
  • Dattatray J. Late

Beilstein J. Nanotechnol. 2019, 10, 467–474, doi:10.3762/bjnano.10.46

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  • -synthesized PtSe2 sample. The X-ray photoelectron spectroscopy (XPS) spectra of the Pt 4f and Se 3d regions acquired on a PtSe2 nanosheet sample were carried out on a film deposited on the Si substrate. The Figure 4a represents the fitted spectrum for Pt 4f7/2 and Pt 4f5/2 with binding energy 72.55 eV and
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Published 13 Feb 2019

Reduced graphene oxide supported C3N4 nanoflakes and quantum dots as metal-free catalysts for visible light assisted CO2 reduction

  • Md Rakibuddin and
  • Haekyoung Kim

Beilstein J. Nanotechnol. 2019, 10, 448–458, doi:10.3762/bjnano.10.44

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  • by X-ray photoelectron spectroscopy (XPS) analysis, which is carried out to study the surface composition and the interactions and valence states of the elements present in the hybrid materials. The full XPS survey spectrum of the GCN-5 hybrid material reveals the presence of C, N and O, while no
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Published 13 Feb 2019

Biocompatible organic–inorganic hybrid materials based on nucleobases and titanium developed by molecular layer deposition

  • Leva Momtazi,
  • Henrik H. Sønsteby and
  • Ola Nilsen

Beilstein J. Nanotechnol. 2019, 10, 399–411, doi:10.3762/bjnano.10.39

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  • the films was measured by a Bruker AXS D8 advance film diffractometer equipped with a LynxEye strip detector. The thin film diffractometer had a Göbel mirror and a Ge(220) four bounce monochromater for XRR measurements. X-ray photoelectron spectroscopy (XPS) was performed using a Thermo Scientific
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Published 08 Feb 2019

A Ni(OH)2 nanopetals network for high-performance supercapacitors synthesized by immersing Ni nanofoam in water

  • Donghui Zheng,
  • Man Li,
  • Yongyan Li,
  • Chunling Qin,
  • Yichao Wang and
  • Zhifeng Wang

Beilstein J. Nanotechnol. 2019, 10, 281–293, doi:10.3762/bjnano.10.27

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  • , Bruker D8) with Cu Kα radiation. Chemical composition and valence state of the products were studied using X-ray photoelectron spectroscopy (XPS, Thermo Fisher Scientific). The surface morphology of the samples was characterized using a scanning electron microscope (SEM, Nova nanoSEM 450) equipped with
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Published 25 Jan 2019

Interaction of Te and Se interlayers with Ag or Au nanofilms in sandwich structures

  • Arkadiusz Ciesielski,
  • Lukasz Skowronski,
  • Marek Trzcinski,
  • Ewa Górecka,
  • Wojciech Pacuski and
  • Tomasz Szoplik

Beilstein J. Nanotechnol. 2019, 10, 238–246, doi:10.3762/bjnano.10.22

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  • the crystallinity, atomic concentration profile and optical parameters of ≈35 nm-thick silver and gold layers deposited on glass substrates with 2 nm-thick tellurium or selenium interlayers. Our study, based on X-ray reflectometry (XRR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS
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Published 21 Jan 2019

Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability

  • Sandra Haschke,
  • Dmitrii Pankin,
  • Vladimir Mikhailovskii,
  • Maïssa K. S. Barr,
  • Adriana Both-Engel,
  • Alina Manshina and
  • Julien Bachmann

Beilstein J. Nanotechnol. 2019, 10, 157–167, doi:10.3762/bjnano.10.15

Graphical Abstract
  • ]. Importantly, the absence of carbonyl stretching vibrations around 1950–2190 cm−1 rules out any remnants of molecular precursor Ru3(CO)12 (Figure 7b [52][62]). X-ray photoelectron spectroscopy (XPS, Figure 8) is used to differentiate between the oxidation states of ruthenium at its surface and in its inner
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Published 11 Jan 2019

Wet chemistry route for the decoration of carbon nanotubes with iron oxide nanoparticles for gas sensing

  • Hussam M. Elnabawy,
  • Juan Casanova-Chafer,
  • Badawi Anis,
  • Mostafa Fedawy,
  • Mattia Scardamaglia,
  • Carla Bittencourt,
  • Ahmed S. G. Khalil,
  • Eduard Llobet and
  • Xavier Vilanova

Beilstein J. Nanotechnol. 2019, 10, 105–118, doi:10.3762/bjnano.10.10

Graphical Abstract
  • chemical composition of the iron oxide decorated carbon nanotube samples were investigated employing transmission electron microscopy (TEM), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The differently decorated CNT samples were used to make gas sensors for detecting nitrogen dioxide. A
  • absorbed acetic acid [28]. Finally, the powder was calcined at 450 °C during either 15 or 30 minutes. In this way the effect of the calcination time on the decoration process was also evaluated. The chemical composition of the decorated CNTs were measured by X-ray photoelectron spectroscopy (XPS) using a
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Published 09 Jan 2019

Amorphous NixCoyP-supported TiO2 nanotube arrays as an efficient hydrogen evolution reaction electrocatalyst in acidic solution

  • Yong Li,
  • Peng Yang,
  • Bin Wang and
  • Zhongqing Liu

Beilstein J. Nanotechnol. 2019, 10, 62–70, doi:10.3762/bjnano.10.6

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  • crystallographic texture, scanning electron microscopy (SEM, JSM-5900 LV, JEOV) for micro-morphology, transmission electron microscopy (TEM, Tecnai G2 F20 S-TWIN) for microstructure, UV–vis diffuse reflectance spectroscopy (UV2100) for photoabsorption properties, X-ray photoelectron spectroscopy (XPS, Escalab
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Published 07 Jan 2019

Zn/F-doped tin oxide nanoparticles synthesized by laser pyrolysis: structural and optical properties

  • Florian Dumitrache,
  • Iuliana P. Morjan,
  • Elena Dutu,
  • Ion Morjan,
  • Claudiu Teodor Fleaca,
  • Monica Scarisoreanu,
  • Alina Ilie,
  • Marius Dumitru,
  • Cristian Mihailescu,
  • Adriana Smarandache and
  • Gabriel Prodan

Beilstein J. Nanotechnol. 2019, 10, 9–21, doi:10.3762/bjnano.10.2

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  • structure. The main diffraction patterns of stannous fluoride (SnF2) were also identified and a reduction in intensity with increasing Zn percentage was evidenced. For the elemental composition estimation, energy dispersion X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) measurements
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Published 02 Jan 2019

A novel polyhedral oligomeric silsesquioxane-modified layered double hydroxide: preparation, characterization and properties

  • Xianwei Zhang,
  • Zhongzhu Ma,
  • Hong Fan,
  • Carla Bittencourt,
  • Jintao Wan and
  • Philippe Dubois

Beilstein J. Nanotechnol. 2018, 9, 3053–3068, doi:10.3762/bjnano.9.284

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  • /ionization-time of flight (MALDI-TOF) mass spectra were recorded with a Bruker Daltonics UltrafleXtreme using methanol as solvent and 2,5-dihydroxybenzoic acid as matrix. X-ray photoelectron spectroscopy (XPS) was carried out on a VG ESCALABMK II electron energy spectrometer using Mg Kα (1253.6 eV) as the X
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Published 19 Dec 2018

Optimization of Mo/Cr bilayer back contacts for thin-film solar cells

  • Nima Khoshsirat,
  • Fawad Ali,
  • Vincent Tiing Tiong,
  • Mojtaba Amjadipour,
  • Hongxia Wang,
  • Mahnaz Shafiei and
  • Nunzio Motta

Beilstein J. Nanotechnol. 2018, 9, 2700–2707, doi:10.3762/bjnano.9.252

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  • . Patterns were collected for 1 h at a step size of 0.01° from 10 to 85° 2θ at 1.3° per minute over the 2θ axis. X-ray photoelectron spectroscopy (XPS) was performed using a Kratos Axis Supra with Al Kα X-ray radiation (hν 1486.7 eV). High-resolution scans of the O 1s, C 1s, Na 1s, Cr 2p, Na 1s and Mo 3d
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Published 18 Oct 2018

Impact of the anodization time on the photocatalytic activity of TiO2 nanotubes

  • Jesús A. Díaz-Real,
  • Geyla C. Dubed-Bandomo,
  • Juan Galindo-de-la-Rosa,
  • Luis G. Arriaga,
  • Janet Ledesma-García and
  • Nicolas Alonso-Vante

Beilstein J. Nanotechnol. 2018, 9, 2628–2643, doi:10.3762/bjnano.9.244

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  • measured at a laser power of 2.5 mW/cm2 and a slit width of 25 μm. X-ray photoelectron spectroscopy (XPS) was used to complement the information of the surface chemistry with a Thermo Scientific instrument (model K-Alpha + surface analysis). Electrochemical and photo-electrochemical characterization The
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Published 04 Oct 2018

Au–Si plasmonic platforms: synthesis, structure and FDTD simulations

  • Anna Gapska,
  • Marcin Łapiński,
  • Paweł Syty,
  • Wojciech Sadowski,
  • Józef E. Sienkiewicz and
  • Barbara Kościelska

Beilstein J. Nanotechnol. 2018, 9, 2599–2608, doi:10.3762/bjnano.9.241

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  • the obtained nanostructures and valence states of Au was measured using X-ray photoelectron spectroscopy (XPS) with an Omicron NanoTechnology spectrometer with 128-channel collector. XPS measurements were performed at room temperature under ultra-high vacuum conditions, below 1.1 × 10−8 mbar. The
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Published 28 Sep 2018

Phosphorus monolayer doping (MLD) of silicon on insulator (SOI) substrates

  • Noel Kennedy,
  • Ray Duffy,
  • Luke Eaton,
  • Dan O’Connell,
  • Scott Monaghan,
  • Shane Garvey,
  • James Connolly,
  • Chris Hatem,
  • Justin D. Holmes and
  • Brenda Long

Beilstein J. Nanotechnol. 2018, 9, 2106–2113, doi:10.3762/bjnano.9.199

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  • under neutral conditions. Controlled-voltage etching was carried out with step widths of 2–5 nm. Secondary ion mass spectrometry data was acquired on a Phi Adept 1010 using a 0.5–1.0 keV Cs+ bombardment with negative ion detection. X-ray photoelectron spectroscopy XPS spectra were acquired on an Oxford
  • variation of the molecule concentration during functionalization. A 50 nm sputtered SiO2 cap and annealing at 1050 °C for 5 s was used for all samples. X-ray photoelectron spectroscopy (XPS) study showing that there is a degree of surface oxidation after functionalization procedure even when carried out
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Published 06 Aug 2018

Defect formation in multiwalled carbon nanotubes under low-energy He and Ne ion irradiation

  • Santhana Eswara,
  • Jean-Nicolas Audinot,
  • Brahime El Adib,
  • Maël Guennou,
  • Tom Wirtz and
  • Patrick Philipp

Beilstein J. Nanotechnol. 2018, 9, 1951–1963, doi:10.3762/bjnano.9.186

Graphical Abstract
  • directly related to the number of defects in CNTs [30], or X-ray photoelectron spectroscopy (XPS) which provides some information on the chemical environment of the carbon atoms [31]. In this context, it is to be noted that helium ion microscopy (HIM) has received increasing attention recently as a high
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Published 09 Jul 2018

Synthesis of a MnO2/Fe3O4/diatomite nanocomposite as an efficient heterogeneous Fenton-like catalyst for methylene blue degradation

  • Zishun Li,
  • Xuekun Tang,
  • Kun Liu,
  • Jing Huang,
  • Yueyang Xu,
  • Qian Peng and
  • Minlin Ao

Beilstein J. Nanotechnol. 2018, 9, 1940–1950, doi:10.3762/bjnano.9.185

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  • Fourier transform infrared spectroscopy (FTIR) using a Nicolet Nexus 670 spectrometer. The morphology of samples was observed with a TESCAN MIRA3 LMU scanning electron microscope (SEM) and a JEOL JEM-1200EX transmission electron microscope (TEM). The X-ray photoelectron spectroscopy (XPS) measurements
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Published 06 Jul 2018

Synthesis of rare-earth metal and rare-earth metal-fluoride nanoparticles in ionic liquids and propylene carbonate

  • Marvin Siebels,
  • Lukas Mai,
  • Laura Schmolke,
  • Kai Schütte,
  • Juri Barthel,
  • Junpei Yue,
  • Jörg Thomas,
  • Bernd M. Smarsly,
  • Anjana Devi,
  • Roland A. Fischer and
  • Christoph Janiak

Beilstein J. Nanotechnol. 2018, 9, 1881–1894, doi:10.3762/bjnano.9.180

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  • IL [BMIm][BF4] for RE = Pr, Eu, Gd and Er. The crystalline phases and the absence of significant oxide impurities in RE-NPs and REF3-NPs were verified by powder X-ray diffraction (PXRD), selected area electron diffraction (SAED) and high-resolution X-ray photoelectron spectroscopy (XPS). The size
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Published 28 Jun 2018

A visible-light-controlled platform for prolonged drug release based on Ag-doped TiO2 nanotubes with a hydrophobic layer

  • Caihong Liang,
  • Jiang Wen and
  • Xiaoming Liao

Beilstein J. Nanotechnol. 2018, 9, 1793–1801, doi:10.3762/bjnano.9.170

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  • + and the NDM hydrophobic layer was verified by SEM and EDS; the results are shown in Figure 3. Furthermore, X-ray photoelectron spectroscopy (XPS) was employed to analyze the chemical state of the coating layer of Ag-TNTs and Zn-Ag-TNTs shown in Figure 4. Figure 3a,b clearly demonstrates that some
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Published 14 Jun 2018

SO2 gas adsorption on carbon nanomaterials: a comparative study

  • Deepu J. Babu,
  • Divya Puthusseri,
  • Frank G. Kühl,
  • Sherif Okeil,
  • Michael Bruns,
  • Manfred Hampe and
  • Jörg J. Schneider

Beilstein J. Nanotechnol. 2018, 9, 1782–1792, doi:10.3762/bjnano.9.169

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  • at 20 kV. X-ray photoelectron spectroscopy (XPS) measurements were performed using a K-Alpha XPS spectrometer (ThermoFisher Scientific, East Grinstead, UK). Data acquisition and processing using the Thermo Avantage software is described elsewhere [58]. All samples were analyzed using a microfocused
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Published 13 Jun 2018

Uniform cobalt nanoparticles embedded in hexagonal mesoporous nanoplates as a magnetically separable, recyclable adsorbent

  • Can Zhao,
  • Yuexiao Song,
  • Tianyu Xiang,
  • Wenxiu Qu,
  • Shuo Lou,
  • Xiaohong Yin and
  • Feng Xin

Beilstein J. Nanotechnol. 2018, 9, 1770–1781, doi:10.3762/bjnano.9.168

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  • adsorption spectra were recorded on a UV-2550 (Shimadzu, Japan) instrument. X-ray photoelectron spectroscopy (XPS) was conducted on a PHA-5400 (SPECS, America) spectrometer. Raman spectra were performed on an In-Via Raman spectroscopy system (Renishaw, England) with excitation laser wavelengths of 532 nm
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Published 13 Jun 2018
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