Nickel nanoparticles supported on a covalent triazine framework as electrocatalyst for oxygen evolution reaction and oxygen reduction reactions

• Secil Öztürk,
• Yu-Xuan Xiao,
• Dennis Dietrich,
• Beatriz Giesen,
• Juri Barthel,
• Jie Ying,
• Xiao-Yu Yang and
• Christoph Janiak

Beilstein J. Nanotechnol. 2020, 11, 770–781, doi:10.3762/bjnano.11.62

• instrument). Deconvolution of the N 1s XPS spectrum of Ni/CTF-1-600-22 reveals five peaks at about 398.5, 399.3, 400.6, 401.2 and 402.3 eV, which can be assigned pyridinic nitrogen, Ni-coordinated nitrogen, pyrrolic nitrogen, graphitic or quaternary nitrogen and oxidized nitrogen, respectively [26][48]. The

Soybean-derived blue photoluminescent carbon dots

• Shanshan Wang,
• Wei Sun,
• Dong-sheng Yang and
• Fuqian Yang

Beilstein J. Nanotechnol. 2020, 11, 606–619, doi:10.3762/bjnano.11.48

• %). Schematic of the bandgaps of CDs under 360 nm excitation and the deconvolution bands (fitted with a two-Gassian function). FTIR spectra of soybean-derived carbon nanoparticles. (a) XPS survey spectra, (b) deconvoluted high-resolution spectra of O 1s, (c) deconvoluted high-resolution spectra of N 1s; and

Size effects of graphene nanoplatelets on the properties of high-density polyethylene nanocomposites: morphological, thermal, electrical, and mechanical characterization

• Tuba Evgin,
• Alpaslan Turgut,
• Georges Hamaoui,
• Zdenko Spitalsky,
• Nicolas Horny,
• Matej Micusik,
• Mihai Chirtoc,
• Mehmet Sarikanat and
• Maria Omastova

Beilstein J. Nanotechnol. 2020, 11, 167–179, doi:10.3762/bjnano.11.14

• to the existence of delocalized π electrons (conduction electrons) available for shake-up events following core electron photoemission (Thermo Fisher Scientific Avantage Data System 5.9904; Thermo Fisher XPS: Knowledge Base). In Table 1, the deconvolution fit for the C 1s and O 1s signals is also

Synthesis of amorphous and graphitized porous nitrogen-doped carbon spheres as oxygen reduction reaction catalysts

• Maximilian Wassner,
• Markus Eckardt,
• Andreas Reyer,
• Thomas Diemant,
• Michael S. Elsaesser,
• R. Jürgen Behm and
• Nicola Hüsing

Beilstein J. Nanotechnol. 2020, 11, 1–15, doi:10.3762/bjnano.11.1

• support to the C 1s signal of the carbon-containing catalyst film. The spectra showed minor charging effects, which were compensated by a neutralizer (low-energy electron flood gun). The C 1s peak was set to 284.8 eV for binding energy calibration [50]. Evaluation and deconvolution of the measured signals

Synthesis of highly active ETS-10-based titanosilicate for heterogeneously catalyzed transesterification of triglycerides

• Muhammad A. Zaheer,
• David Poppitz,
• Khavar Feyzullayeva,
• Marianne Wenzel,
• Jörg Matysik,
• Radomir Ljupkovic,
• Aleksandra Zarubica,
• Alexander A. Karavaev,
• Andreas Pöppl,
• Roger Gläser and
• Muslim Dvoyashkin

Beilstein J. Nanotechnol. 2019, 10, 2039–2061, doi:10.3762/bjnano.10.200

• ), −96.8 ppm (A3) and at −103.8 ppm (A4) with calculated relative peak areas after deconvolution of 40, 40 and 20%, respectively (see Table 3). This is consistent with the structural data provided for ETS-10 in [23]. The two resonances at −95.1 ppm and −96.8 ppm are assigned to the Si bonded via O atoms to

Fabrication and characterization of Si_1−xGe_x nanocrystals in as-grown and annealed structures: a comparative study

• Muhammad Taha Sultan,
• Adrian Valentin Maraloiu,
• Ionel Stavarache,
• Jón Tómas Gudmundsson,
• Andrei Manolescu,
• Valentin Serban Teodorescu,
• Magdalena Lidia Ciurea and
• Halldór Gudfinnur Svavarsson

Beilstein J. Nanotechnol. 2019, 10, 1873–1882, doi:10.3762/bjnano.10.182

• as-grown structure. The first one corresponds to the (111) planes of SiGe and the second one to the (220) and (311) planes, which overlap indicating the presence of (nano)crystallites [22]. In Figure 1b, a deconvolution of diffractogram for the as-grown MLs was achieved using Origin software (ver

• photocurrent spectra of as-grown structure (SiGe via dcMS and HiPIMS) are shown in Figure 7a. Deconvolution was carried out to obtain the individual peaks. The observed peaks were assigned to interface related localized states (peak I), the photo effect from NCs (peak N) and capacitive coupling from Si

Synthesis of P- and N-doped carbon catalysts for the oxygen reduction reaction via controlled phosphoric acid treatment of folic acid

• Rieko Kobayashi,
• Takafumi Ishii,
• Yasuo Imashiro and
• Jun-ichi Ozaki

Beilstein J. Nanotechnol. 2019, 10, 1497–1510, doi:10.3762/bjnano.10.148

• spectra (Figure 3b) of P-series precursors prepared at 500 and 700 °C were assumed to be a superposition of several peaks; the results of its deconvolution are also presented in Figure 3a,b. For example, the spectrum of P-500 was deconvoluted into peaks at 398.5, 400.5, and 402.5 eV, while that of P-700

• results of peak deconvolution by assuming the presences of the five species given in the legend. The P-species varied with the CPAT temperature. The ORR voltammograms of the precursors are presented in Figure S4 (Supporting Information File 1). Both H-series and P-series precursors showed increased ORR

• -series carbon materials (closed circles). N 1s spectra of (a) H-series and (b) P-series precursors. (c) P 2p spectra of P-series precursors. Results of deconvolution are also presented. Correlations between (a) N/C ratios of HH-series carbon materials and those of H-series precursors, (b) N/C ratios of

Flexible freestanding MoS₂-based composite paper for energy conversion and storage

• Florian Zoller,
• Jan Luxa,
• Thomas Bein,
• Dina Fattakhova-Rohlfing,
• Daniel Bouša and
• Zdeněk Sofer

Beilstein J. Nanotechnol. 2019, 10, 1488–1496, doi:10.3762/bjnano.10.147

• of the MoS2 sheets. Components originating from MoS2 and MoO3 were identified in the core-level Mo 3d spectrum (Figure 3). The positions of the individual components are in agreement with previous reports for MoS2 and MoO3 [37][38]. The deconvolution revealed that the MoO3 content was about ≈12 atom

BiOCl/TiO₂/diatomite composites with enhanced visible-light photocatalytic activity for the degradation of rhodamine B

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

Beilstein J. Nanotechnol. 2019, 10, 1412–1422, doi:10.3762/bjnano.10.139

• (Figure 3c), the main peak at 103.47 eV is attributed to diatomite [29]. The Cl 2p spectrum (Figure 3d) shows peaks with a binding energy of 198.07 and 199.66 eV, which can be respectively ascribed to Cl 2p3/2 and Cl 2p1/2 [35]. The deconvolution of the O 1s spectrum (Figure 3e) shows four peaks located

Warped graphitic layers generated by oxidation of fullerene extraction residue and its oxygen reduction catalytic activity

• Machiko Takigami,
• Rieko Kobayashi,
• Takafumi Ishii,
• Yasuo Imashiro and
• Jun-ichi Ozaki

Beilstein J. Nanotechnol. 2019, 10, 1391–1400, doi:10.3762/bjnano.10.137

• series), and the blue line represents the heat-treated sample in a N2 stream (NNB). (c) Examples of the peak deconvolution of the 002 XRD profiles of the selected samples; ONB-3, ONB-1 and NB-ORG from top to bottom. The colors of the sub peaks indicate the differences of their origin. The green and blue

Alloyed Pt₃M (M = Co, Ni) nanoparticles supported on S- and N-doped carbon nanotubes for the oxygen reduction reaction

• Stéphane Louisia,
• Yohann R. J. Thomas,
• Pierre Lecante,
• Marie Heitzmann,
• M. Rosa Axet,
• Pierre-André Jacques and
• Philippe Serp

Beilstein J. Nanotechnol. 2019, 10, 1251–1269, doi:10.3762/bjnano.10.125

• deconvolution of the main N 1s peak: pyridinic nitrogen, pyrrolic nitrogen, quaternary nitrogen and nitrogen-oxidized species were identified (Table 2, and Supporting Information File 1, Figure S4). XPS analysis also showed the presence of sulfonic acid groups on the surface of N-doped CNTs (Supporting

• analysis performed on Pt3Ni/N-CNTHT revealed the species detailed in Table 6. The Pt 4f region of the XPS spectrum is shown in Supporting Information File 1, Figure S11a. The deconvolution shows three pairs of doublets (corresponding to Pt 4f7/2 and Pt 4f5/2). The first doublet at 71.2/74.4 eV corresponds

Glucose-derived carbon materials with tailored properties as electrocatalysts for the oxygen reduction reaction

• Rafael Gomes Morais,
• Natalia Rey-Raap,
• José Luís Figueiredo and
• Manuel Fernando Ribeiro Pereira

Beilstein J. Nanotechnol. 2019, 10, 1089–1102, doi:10.3762/bjnano.10.109

• , O 1s and N 1s regions were deconvoluted to identify the types of functionalities present in the surface of the carbon materials. The deconvolution of the C 1s spectra for undoped samples presents five main peaks (Supporting Information File 1, Figure S3), representing the following by increasing

• functionalities related to carbon bonds are presented, which is in agreement with those results obtained by the deconvolution of the C 1s spectra, especially for undoped ball-milled samples that exhibited a pronounced peak attributed to carboxylic acids. The O 1s spectra deconvolution does not clearly distinguish

• Figure 5, while the deconvolution of the profiles is shown in Figures S5, S6, S7 and S8 in Supporting Information File 1. The amount of CO2 and CO released from ball-milled samples is significantly higher than that of their original counterparts. Analyzing the CO2 profiles of activated samples three

Serum type and concentration both affect the protein-corona composition of PLGA nanoparticles

• Katrin Partikel,
• Robin Korte,
• Dennis Mulac,
• Hans-Ulrich Humpf and
• Klaus Langer

Beilstein J. Nanotechnol. 2019, 10, 1002–1015, doi:10.3762/bjnano.10.101

• deconvolution (Wiener filter) using cellSens Dimensions Software 1.8.1. Statistical methods All experiments were performed at least three times. The results are shown as average value with standard deviation. Significance tests were conducted with Sigma Plot 12.5 (Systat Software GmbH, Erkrath, Germany), using

Concurrent nanoscale surface etching and SnO₂ loading of carbon fibers for vanadium ion redox enhancement

• Jun Maruyama,
• Shohei Maruyama,
• Tomoko Fukuhara,
• Toru Nagaoka and
• Kei Hanafusa

Beilstein J. Nanotechnol. 2019, 10, 985–992, doi:10.3762/bjnano.10.99

• using Microsoft Excel based on Gaussian functions was used for the Raman peak deconvolution and fitting. Energy-dispersive X-ray spectrometry was performed using a FESEM (JSM-7800F, JEOL) and EDX (Octane Elect Super, EDAX). X-ray photoelectron spectroscopy (XPS) was carried out using an AXIS ULTRA DLD

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

• MWCNTs. N/T: Not tested. Supporting Information The chemical structure of the different thiols tested. Representation of self-assembled monolayers. Raman spectroscopy of carbon nanotubes. Deconvolution of the C 1s core level peak for Au-MWCNTs using XPS. Table with the relative abundance (%) analyzed by

Widening of the electroactivity potential range by composite formation – capacitive properties of TiO₂/BiVO₄/PEDOT:PSS electrodes in contact with an aqueous electrolyte

• Konrad Trzciński,
• Mariusz Szkoda,
• Andrzej P. Nowak,
• Marcin Łapiński and
• Anna Lisowska-Oleksiak

Beilstein J. Nanotechnol. 2019, 10, 483–493, doi:10.3762/bjnano.10.49

• TiO2/BiVO4 did not clearly affect the bottom layer of TiO2. The XPS spectrum of the Bi 4f region of the sample before hydrogenation is characteristic for Bi3+ (Figue 3b). Deconvolution of the Bi 4f spectrum of the sample after the hydrogenation process exhibited an additional lower-intensity doublet at

Improving control of carbide-derived carbon microstructure by immobilization of a transition-metal catalyst within the shell of carbide/carbon core–shell structures

• Teguh Ariyanto,
• Jan Glaesel,
• Andreas Kern,
• Gui-Rong Zhang and
• Bastian J. M. Etzold

Beilstein J. Nanotechnol. 2019, 10, 419–427, doi:10.3762/bjnano.10.41

• effect of nickel loading to the crystallite dimension, the parallel and in-plane symmetry crystallite sizes corresponding to C(002) (2θ ≈ 26°) and C(100) (2θ ≈ 43°) were evaluated using the Scherrer equation (peak deconvolution, see Experimental section). It is noted that the Scherrer equation provides

• were recorded in a Netzsch STA 409 PC Luxx (Germany) under air flow. The method consisted of isothermal drying at 150 °C for 1 h followed by heating from 150 to 800 °C at a constant ramp rate of 2.5 °C·min−1. Peak deconvolution of the TPO curves was carried out with two bi-Gaussian functions. Raman

• spectra were taken using Jobin Yvon HR 800 with a HeNe laser (633 nm and 20 mW power). Peak deconvolution of Raman spectra was carried by peak fitting with four Lorentzian/Gaussian functions as described in [15]. Energy-dispersive spectroscopy (EDS) measurements were performed on a scanning electron

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

• peaks of Ni 2p and O 1s appear for both the as-dealloyed alloy and as-synthesized Ni(OH)2. It is found that the intensity of O 1s peak greatly increases for the as-dealloyed alloy immersed in deionized water for five and seven days. The deconvolution results of the Ti 2p and Zr 3d spectra measured for

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

• (“bulk”). The overview XPS spectrum of an as-prepared nanostructured sample features only Ru, O and C (Figure 8a) from the Ru/C layer, whereas the Al2O3 substrate is completely covered and reveals no Al signal. Deconvolution of the Ru 3d region, which is superimposed with C 1s (Figure 8b), reveals two

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

• SnO2 nanoparticles is also revealed. For samples presented in this article, the double doping with F/Zn of SnO2 nanoparticles leads to different dependencies. In Figure 4a the Raman spectra and the corresponding bands after their deconvolution with a Pearson 7 function are presented. After the

• deconvolution, a correlation can be made between the fluorine doping atomic percent (from the XPS analysis) and the Raman shift value of the A1g band or the B2g peak area as shown in Figure 4b. Thus, with the increase of fluorine content in the powders, the A1g position shifts toward lower wave numbers, whereas

Disorder in H⁺-irradiated HOPG: effect of impinging energy and dose on Raman D-band splitting and surface topography

• Lisandro Venosta,
• Noelia Bajales,
• Sergio Suárez and
• Paula G. Bercoff

Beilstein J. Nanotechnol. 2018, 9, 2708–2717, doi:10.3762/bjnano.9.253

• baseline. From the deconvolution of the D band (Figure 2a), we verify that it is a doublet (D1 and D2). Positions of D, D′ and 2D components, as well as the ID1/ID2 ratio, are summarized in Table 1, in order to emphasize the intensity changes in the D1 and D2 contributions. The doublet of the D band is

• , HD-LE and HD-HE). Pristine HOPG is shown for comparison. a) D band and D′ band and b) 2D band. Experimental points are shown as circles while the solid lines correspond to the fits. Deconvolution of a) D band and b) 2D band. The dotted vertical lines are drawn as a guide to the eye, at the peak

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

• ). For deconvolution of the Raman spectra, the method by Ribeiro-Soares et al. has been used [58]. The peaks for the D band at 1345 cm−1, the G band at 1585 cm−1 and the D’ band at 1615 cm−1 have been fitted by Lorentzian functions while Gaussian functions have been used to fit the contribution from

• ion current and changes of the latter during ion irradiation. Supporting Information Supporting Information File 228: Additional information on deconvolution of Raman spectra, TEM imaging and numerical simulations. Acknowledgements This project was supported by the National Research Fund (FNR

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

• summarized in Table S1 (Supporting Information File 1) and the detailed C 1s deconvolution is given in Table S2 (Supporting Information File 1). The SO2 adsorption isotherm of the six adsorbents at 25 °C is shown in Figure 5a. The experimental measurement errors are ±5% for the loading and the pressure

Effect of annealing treatments on CeO₂ grown on TiN and Si substrates by atomic layer deposition

• Silvia Vangelista,
• Rossella Piagge,
• Satu Ek and
• Alessio Lamperti

Beilstein J. Nanotechnol. 2018, 9, 890–899, doi:10.3762/bjnano.9.83

• ][32][33]. The “v” labels refer to the 3d5/2 spin–orbit split component, while the “u” labels mark the 3d3/2 signals. The figures also show the fit obtained from the deconvolution of the spectra into the different components, similarly to that reported in [6][9][10][13]. In Table 2, we reported the

Ultralight super-hydrophobic carbon aerogels based on cellulose nanofibers/poly(vinyl alcohol)/graphene oxide (CNFs/PVA/GO) for highly effective oil–water separation

• Zhaoyang Xu,
• Huan Zhou,
• Sicong Tan,
• Xiangdong Jiang,
• Weibing Wu,
• Jiangtao Shi and
• Peng Chen

Beilstein J. Nanotechnol. 2018, 9, 508–519, doi:10.3762/bjnano.9.49

• , (c) GO, (d) rGO, and (e) CNF/PVA/GO aerogels and the (f) CNF/PVA/GO carbon aerogel. X-ray photoelectron spectrometry spectra and deconvolution of (a) survey scans, and C 1s high-resolution spectra of (b) GO and (c) rGO. Thermogravimetric analysis (TGA) curves of the CNFs, pure PVA, GO, CNF/PVA/GO