In situ magnesiothermic reduction synthesis of a Ge@C composite for high-performance lithium-ion batterie anodes

• Ha Tran Huu,
• Ngoc Phi Nguyen,
• Vuong Hoang Ngo,
• Huy Hoang Luc,
• Minh Kha Le,
• Minh Thu Nguyen,
• My Loan Phung Le,
• Hye Rim Kim,
• In Young Kim,
• Sung Jin Kim,
• Van Man Tran and
• Vien Vo

Beilstein J. Nanotechnol. 2023, 14, 751–761, doi:10.3762/bjnano.14.62

• five cycles and 1000 mAh·g−1 for the following cycles. The rate performance was measured under the same conditions with different specific currents from 100 to 5000 mA·g−1. Cyclic voltammetry (CV) was carried out in the above potential window at a scan rate of 0.1 mV·s−1 on a Biologic-MPG2 instrument

A graphene quantum dots–glassy carbon electrode-based electrochemical sensor for monitoring malathion

• Sanju Tanwar,
• Aditi Sharma and
• Dhirendra Mathur

Beilstein J. Nanotechnol. 2023, 14, 701–710, doi:10.3762/bjnano.14.56

• diffraction were used to characterize the morphological and structural properties of GQDs. An electrochemical sensor was developed by drop casting GQDs on a glassy carbon electrode (GCE). The sensor detects the organophosphate pesticide malathion in a selective and sensitive manner. Using cyclic voltammetry

• between 1 to 30 µM using differential pulse voltammetry, which resulted in a limit of detection of 0.62 nM. GQDs can thus be used to develop electrochemical sensors for the detection of pesticides in water. Keywords: cyclic voltammetry; differential pulse voltammetry; electrochemical impedance

• /reduction behavior and charge transfer resistance, cyclic voltammetry and electrochemical impedance spectroscopy were performed. An investigation of the relationship between concentrations and peak currents was conducted using differential pulse voltammetry (DPV). In this study, the modified GQD electrodes

Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

• Akeem Adeyemi Oladipo,
• Saba Derakhshan Oskouei and
• Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

• then measure the resulting current [61]. In voltammetric sensors that typically have two or three electrodes (the working electrode, the counter electrode, and the reference electrode), the current is measured as a function of the applied voltage at the working electrode. Currently, cyclic voltammetry

Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction

• Karolina Cysewska,
• Marcin Łapiński,
• Marcin Zając,
• Jakub Karczewski,
• Piotr Jasiński and
• Sebastian Molin

Beilstein J. Nanotechnol. 2023, 14, 420–433, doi:10.3762/bjnano.14.34

• reduction of the GO. A reduced form of GO combined with NiFe was also obtained by others after one-step electrodeposition by cyclic voltammetry [12]. Electrochemical studies of the catalysts towards the OER The electrochemical performance of the catalysts towards the OER was studied in an aqueous solution

• 1 M KOH (Stanlab, pH ≈13.9). Before each electrochemical experiment, the electrode was stabilized during cyclic voltammetry (CV) by sweeping the potential from 1.1 to 1.6 V vs RHE for at least 20 cycles with a scan rate of 100 mV·s−1. Linear scan voltammetry (LSV) was performed from 1.1 to 2 V vs

A novel approach to pulsed laser deposition of platinum catalyst on carbon particles for use in polymer electrolyte membrane fuel cells

• Bogusław Budner,
• Wojciech Tokarz,
• Sławomir Dyjak,
• Andrzej Czerwiński,
• Bartosz Bartosewicz and
• Bartłomiej Jankiewicz

Beilstein J. Nanotechnol. 2023, 14, 190–204, doi:10.3762/bjnano.14.19

• W/cm2 obtained for commercial 20% Pt Vulcan XC-72R. This result was achieved with three times less Pt catalyst on the carbon support compared to the commercial catalyst, which means that a higher catalyst utilization factor was achieved. Keywords: carbon particles; cyclic voltammetry; fuel cells

• of the apparent differences. Before performing ORR experiments in the RRDE system, cyclic voltammetry curves in N2-saturated 0.5 M H2SO4 were recorded. In cycling voltammetry experiments, materials A and B show signals characteristic of the platinum nanoparticle surface (Supporting Information File 1

• painting conditions. However, as a result, a mechanically robust layer was obtained, which did not fall off the electrode spontaneously. Therefore, the more graphitized C-11 carbon material used in Pt-based catalysts is more difficult to apply on Nafion membranes.The cyclic voltammetry curves measured in

Utilizing the surface potential of a solid electrolyte region as the potential reference in Kelvin probe force microscopy

• Nobuyuki Ishida

Beilstein J. Nanotechnol. 2022, 13, 1558–1563, doi:10.3762/bjnano.13.129

• electrode–electrolyte interface (ΔV+, ΔV−). Before explaining the results of the KPFM measurements, we discuss the electrochemical property of the Au electrode–solid electrolyte interface. Figure 2 shows a cyclic voltammetry (CV) curve obtained by applying a voltage to the Au electrode deposited on the

A TiO₂@MWCNTs nanocomposite photoanode for solar-driven water splitting

• Anh Quynh Huu Le,
• Ngoc Nhu Thi Nguyen,
• Hai Duy Tran,
• Van-Huy Nguyen and
• Le-Hai Tran

Beilstein J. Nanotechnol. 2022, 13, 1520–1530, doi:10.3762/bjnano.13.125

• photoelectrochemical processes occurring at the interface between electrode and electrolyte [31]. Cyclic voltammetry measurements are utilized to analyze the characteristics of charge and discharge of the photoelectrochemical electrodes. Figure 8a shows the cyclic voltammograms (CVs) generated using the prepared TiO2

• electrode [35]. Based on the cyclic voltammetry results, it could be suggested that the TiO2@MWCNTs electrode is superior regarding photoelectrochemical application compared to TiO2 and MWCNTs electrodes. Electrochemical impedance spectroscopy (EIS) is applied to characterize the electron-transfer property

Rapid and sensitive detection of box turtles using an electrochemical DNA biosensor based on a gold/graphene nanocomposite

• Abu Hashem,
• M. A. Motalib Hossain,
• Ab Rahman Marlinda,
• Mohammad Al Mamun,
• Khanom Simarani and
• Mohd Rafie Johan

Beilstein J. Nanotechnol. 2022, 13, 1458–1472, doi:10.3762/bjnano.13.120

• scanning electron microscopy and structural characteristics were analysed by using energy-dispersive X-ray, UV–vis, and Fourier-transform infrared spectroscopy. The electrochemical characteristics of the modified electrodes were studied by cyclic voltammetry, differential pulse voltammetry (DPV), and

• the immobilisation of DNA. Supporting Information File 1, Table S1 illustrates the major peaks and their shifting after each modification of the nanocomposites. Modified effective surface area of screen-printed carbon electrodes Cyclic voltammetry (CV) was employed to measure SPCE and modified SPCE at

Electrocatalytic oxygen reduction activity of AgCoCu oxides on reduced graphene oxide in alkaline media

• Iyyappan Madakannu,
• Indrajit Patil,
• Bhalchandra Kakade and
• Kasibhatta Kumara Ramanatha Datta

Beilstein J. Nanotechnol. 2022, 13, 1020–1029, doi:10.3762/bjnano.13.89

• solution) conditions, we have performed cyclic voltammetry (CV) and linear sweep voltammetry (LSV) on a rotating disc electrode (RDE), which provides the direct chemical identification of species exposed to the electrolytic solution. In particular, the comparative CV curves for the most active ACC-2

A nonenzymatic reduced graphene oxide-based nanosensor for parathion

• Sarani Sen,
• Anurag Roy,
• Ambarish Sanyal and
• Parukuttyamma Sujatha Devi

Beilstein J. Nanotechnol. 2022, 13, 730–744, doi:10.3762/bjnano.13.65

• cycles, the scan rate of cyclic voltammetry, or reduction time at a fixed potential in chronoamperometry [30][31][32]. However, the desired size and thickness of the film can be increased by controlling the amount of precursor GO deposited onto the electrode surface [31][32]. Optimizing the process

• cyclic voltammetry and differential pulse voltammetry. It can minimize background current to obtain an intense, sharp, and well-defined peak of the targeted analyte at a particular potential. To obtain the maximum peak current, the parameters of SWV were optimized using 10 μM PT in PBS (pH 7). The

• 10 μM PT in PBS, pH 7, with different amounts of GO deposited on bare GCE for the preparation of modified ERGO/GCE. (B) Peak current of cyclic voltammetry using 10 μM PT with different amounts of GO deposited on bare GCE for preparation of modified ERGO/GCE. (C) Peak response of 10 μM PT with

Influence of thickness and morphology of MoS₂ on the performance of counter electrodes in dye-sensitized solar cells

• Lam Thuy Thi Mai,
• Hai Viet Le,
• Ngan Kim Thi Nguyen,
• Van La Tran Pham,
• Thu Anh Thi Nguyen,
• Nguyen Thanh Le Huynh and
• Hoang Thai Nguyen

Beilstein J. Nanotechnol. 2022, 13, 528–537, doi:10.3762/bjnano.13.44

• disulfide (MoS2) was prepared on substrates coated with fluorine-doped tin oxide (FTO) to substitute the platinum counter electrode (CE) for dye-sensitized solar cells (DSSCs). Herein, we synthesized layered and honeycomb-like MoS2 thin films via the cyclic voltammetry (CV) route. Thickness and morphology

• : cyclic voltammetry (CV); dye-sensitized solar cells (DSSCs); electrocatalytic activity; honeycomb-like; molybdenum disulfide (MoS2); thin film; Introduction Since Grätzel’s first report in 1991, dye-sensitized solar cells (DSSCs) have been the subject of much research due to the easy fabrication process

• solution containing (NH4)6Mo7O24·4H2O and Na2S by cyclic voltammetry (CV). Morphology and thickness of the MoS2 thin films were controlled by adjusting the concentration of the precursor solution. The electrochemical catalytic activity of the MoS2 thin films was investigated regarding the I3–/I–redox

A non-enzymatic electrochemical hydrogen peroxide sensor based on copper oxide nanostructures

• Irena Mihailova,
• Vjaceslavs Gerbreders,
• Marina Krasovska,
• Eriks Sledevskis,
• Valdis Mizers,
• Andrejs Bulanovs and
• Andrejs Ogurcovs

Beilstein J. Nanotechnol. 2022, 13, 424–436, doi:10.3762/bjnano.13.35

• spectroscopy and X-ray diffractometry. The resulting nanostructured samples were used for electrochemical determination of the H2O2 content in a 0.1 M NaOH buffer solution using cyclic voltammetry, differential pulse voltammetry, and i–t measurements. A good linear relationship between the peak current and the

• -electrode cell was used, using oxide-coated copper wire as a working electrode, 0.4 mm diameter Ag/AgCl wire as a reference electrode, and a 6 × 6 mm PCB electrode with ENIG surface finish as a counter electrode. Cyclic voltammetry (CV) was carried out in the range from −0.8 to 0.1 V vs Ag/AgCl, with Ustart

Sputtering onto liquids: a critical review

• Anastasiya Sergievskaya,
• Adrien Chauvin and
• Stephanos Konstantinidis

Beilstein J. Nanotechnol. 2022, 13, 10–53, doi:10.3762/bjnano.13.2

Electrical, electrochemical and structural studies of a chlorine-derived ionic liquid-based polymer gel electrolyte

• Ashish Gupta,
• Amrita Jain,
• Manju Kumari and
• Santosh K. Tripathi

Beilstein J. Nanotechnol. 2021, 12, 1252–1261, doi:10.3762/bjnano.12.92

• voltage of synthesized electrolytes can also be determined by this method. In the present work, the electrochemical stability of polymer gel electrolytes has been recorded by using cyclic voltammetry. Figure 10 shows the I–V characteristics of the optimized polymer gel electrolytes which was carried out

• temperatures. Linear sweep cyclic voltammetry curve of polymer gel electrolytes (cell stainless steel | polymer gel electrolyte | stainless steel) recorded at room temperature at a scan rate of 5 mV·s−1. A dc polarization curve as a function of time for a polymer gel electrolyte. Values of the parameters

Paper-based triboelectric nanogenerators and their applications: a review

• Jing Han,
• Nuo Xu,
• Yuchen Liang,
• Mei Ding,
• Junyi Zhai,
• Qijun Sun and
• Zhong Lin Wang

Beilstein J. Nanotechnol. 2021, 12, 151–171, doi:10.3762/bjnano.12.12

• spectra in Figure 10c. The electrochemical behavior of CNT and PANI–CNT electrodes were evaluated by using cyclic voltammetry (CV) and galvanostatic charge–discharge characterization (GCD). Compared with the pristine CNT, two pairs of redox peaks appeared in the CV curve of PANI–CNT electrodes at a scan

ZnO and MXenes as electrode materials for supercapacitor devices

• Ameen Uddin Ammar,
• Ipek Deniz Yildirim,
• Feray Bakan and
• Emre Erdem

Beilstein J. Nanotechnol. 2021, 12, 49–57, doi:10.3762/bjnano.12.4

• ) spectroscopy techniques among the most powerful techniques to extract detailed information on the defect structures of ZnO. Also, electrical impedance spectroscopy (EIS) and cyclic voltammetry (CV) are sensitive to electrical properties such as specific capacitance and impedance, which can be correlated with

Atomic layer deposited films of Al₂O₃ on fluorine-doped tin oxide electrodes: stability and barrier properties

• Hana Krýsová,
• Michael Neumann-Spallart,
• Hana Tarábková,
• Pavel Janda,
• Ladislav Kavan and
• Josef Krýsa

Beilstein J. Nanotechnol. 2021, 12, 24–34, doi:10.3762/bjnano.12.2

• M KCl) and a platinum rod was used as the counter electrode. The blocking properties of the deposited layers were evaluated by cyclic voltammetry (CV) in an aqueous electrolyte composed of 0.5 mM K3[Fe(CN)6] and 0.5 mM K4[Fe(CN)6] in 0.5 M KCl (pH 2.5, adjusted with HCl) or in phosphate buffer (pH

• FTO coated with a 17 nm Al2O3 layer were practically the same (i.e., 35 and 34 nm, respectively). This shows that Al2O3 was conformally deposited onto the FTO surface. Next, the blocking properties of the aluminium oxide layers were tested via cyclic voltammetry on ALD-deposited Al2O3 films of various

• (free of Prussian blue) was observed when the Al2O3-protected electrode was denuded by the dissolution of its coating, both in acidic (Figure 6) and alkaline (Figure 4) media. Exposure to phosphate buffer (pH 7.2) Cyclic voltammetry curves of 17 nm thick Al2O3 films on FTO substrates (in the presence of

Self-standing heterostructured NiC_x-NiFe-NC/biochar as a highly efficient cathode for lithium–oxygen batteries

• Shengyu Jing,
• Xu Gong,
• Shan Ji,
• Linhui Jia,
• Bruno G. Pollet,
• Sheng Yan and
• Huagen Liang

Beilstein J. Nanotechnol. 2020, 11, 1809–1821, doi:10.3762/bjnano.11.163

• impedance spectroscopy (EIS) in a frequency range from 100 kHz to 0.1 Hz and with a perturbation amplitude of 5 mV was used on the PARSTAT 4000 (AMETEK, USA) electrochemical workstation. Cyclic voltammetry (CV) was performed at a scan rate of 0.1 mV·s−1 and in a cell voltage range from 2.0 to 4.5 V vs Li

• electrocatalytic properties of NiFe-PBA/PP-T samples were initially evaluated by cyclic voltammetry. As shown in Figure 5a, the current response in N2 was very low, close to zero, during positive and negative scans. This suggests that the as-prepared cathode has no ability to catalyze N2 reduction. In contrast

• of NiFe-PBA (inset, black curve). (a–c) HR-TEM images and (d,e) element mappings of NiFe-PBA/PP-900. High-resolution XPS spectra of NiFe-PBA/PP-T calcined at 700 (top panels) and 900 °C (bottom panels) for (a) C 1s, (b) N 1s, (c) Ni 2p, and (d) Fe 2p. (a) In situ cyclic voltammetry curves of Li–O2

One-step synthesis of carbon-supported electrocatalysts

• Sebastian Tigges,
• Nicolas Wöhrl,
• Ivan Radev,
• Ulrich Hagemann,
• Markus Heidelmann,
• Thai Binh Nguyen,
• Stanislav Gorelkov,
• Stephan Schulz and
• Axel Lorke

Beilstein J. Nanotechnol. 2020, 11, 1419–1431, doi:10.3762/bjnano.11.126

• by cyclic voltammetry (CV) measurements. Results and Discussion One-step synthesis and its product Platinum acetylacetonate was used as a single-source precursor for the deposition of Pt-NPs embedded in the supporting CNW matrix. CNWs are vertically aligned, graphitic, multilayer carbon sheets, which

• (including preheating), and M is the molar mass of the precursor (393.302 g/mol). The material deposition was mainly done on 1 × 1 cm2 silicon substrates. In preparation for the cyclic voltammetry measurements, glassy carbon electrodes (GCEs; diameter 4 mm, Catalog No. 013338, ALS Co., Ltd.) were used as

Structure and electrochemical performance of electrospun-ordered porous carbon/graphene composite nanofibers

• Yi Wang,
• Yanhua Song,
• Chengwei Ye and
• Lan Xu

Beilstein J. Nanotechnol. 2020, 11, 1280–1290, doi:10.3762/bjnano.11.112

• station (CHI660E, Chenhua, Shanghai) by using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and constant current galvanostatic charge/discharge (GCD) techniques. A voltage range of 0–1.0 V was applied to the CV electrode at a scan rate of 25 mV·s−1. The impedance measurements of

• the electrochemical process [42]. Electrochemical characterization Cyclic voltammetry is a reliable method to analyze the capacitance of supercapacitor electrodes [43]. Capacitors made of CGCNFs were submitted to a CV experiment at a scan rate of 25 mV·s−1 and the obtained curves are shown in Figure 5

Exfoliation in a low boiling point solvent and electrochemical applications of MoO₃

• Matangi Sricharan,
• Bikesh Gupta,
• Sreejesh Moolayadukkam and
• H. S. S. Ramakrishna Matte

Beilstein J. Nanotechnol. 2020, 11, 662–670, doi:10.3762/bjnano.11.52

• properties of the exfoliated MoO3 nanosheets were evaluated using a three-electrode configuration and are shown in Figure 3. Figure 3a shows the cyclic voltammetry (CV) measurement of the electrodes recorded between −0.8 and −0.1 V with a scan rate of 50 mV/s. Initially, pristine exfoliated MoO3 sheets were

• response with a small iR drop. This can be attributed to the better conductivity after adding CB. To study the stability of the composite, cyclic voltammetry was carried out up to 2000 cycles. Initially, the capacitance increases, which may be attributed to the wetting of the electrode with the electrolyte

Comparison of fresh and aged lithium iron phosphate cathodes using a tailored electrochemical strain microscopy technique

• Matthias Simolka,
• Hanno Kaess and
• Kaspar Andreas Friedrich

Beilstein J. Nanotechnol. 2020, 11, 583–596, doi:10.3762/bjnano.11.46

• cathode material due to ageing. A decrease of the electrochemical activity of the cathode could result in a smaller current peak intensity in a cyclic voltammetry (CV) experiment. However, performing CV with the fresh and an aged cathode in combination with a fresh graphite anode as counter electrode for

Electrochemically derived functionalized graphene for bulk production of hydrogen peroxide

• Munaiah Yeddala,
• Pallavi Thakur,
• Anugraha A and
• Tharangattu N. Narayanan

Beilstein J. Nanotechnol. 2020, 11, 432–442, doi:10.3762/bjnano.11.34

• electrolyte concentration also determines the extent of functionalization of graphene. The presence of the C=O groups is further confirmed by cyclic voltammetry (CV) measurements in alkaline and acidic electrolyte. The CV profiles of the EEG samples (EEG-modified glassy carbon electrode (GCE) as the working

• -checked with graphite rod counter electrode, too) used as a reference and counter electrodes, respectively. The electrochemical performance of the materials was analyzed using cyclic voltammetry (CV), linear sweep voltammetry (LSV), and rotating ring and disk electrode (RRDE) measurements. A BioLogic SP

High-performance asymmetric supercapacitor made of NiMoO₄ nanorods@Co₃O₄ on a cellulose-based carbon aerogel

• Meixia Wang,
• Jing Zhang,
• Xibin Yi,
• Benxue Liu,
• Xinfu Zhao and
• Xiaochan Liu

Beilstein J. Nanotechnol. 2020, 11, 240–251, doi:10.3762/bjnano.11.18

• counter electrode were a saturated calomel electrode (SCE) and a platinum electrode, respectively. Figure 6a shows the cyclic voltammetry (CV) curves of the NiMoO4@Co3O4/CA electrode at voltage scan rates of 2.5–50 mV/s. All the CV curves shown in Figure 6a consist of a pair of strong redox current peaks

• (b) C 1s, (c) Co 2p, (d) Ni 2p, (e) Mo 3d and (f) O 1s. Nitrogen adsorption/desorption isotherms and pore size distribution curves of (a) CA, (b) NiMoO4/CA (b), and (c) NiMoO4@Co3O4/CA composite. (a) Cyclic voltammetry (CV) curves at scan rates of 2.5–50 mV/s and (b) galvanostatic charge/discharge

Simple synthesis of nanosheets of rGO and nitrogenated rGO

• Pallellappa Chithaiah,
• Madhan Mohan Raju,
• Giridhar U. Kulkarni and
• C. N. R. Rao

Beilstein J. Nanotechnol. 2020, 11, 68–75, doi:10.3762/bjnano.11.7

• prepare the H-rGO electrode. The electrochemical studies, including cyclic voltammetry (CV) and chronopotentiometry charge–discharge (CD), were carried out at room temperature in 1 M H2SO4 solution in a standard three-electrode cell using an electrochemical workstation CHI 660E. This system consists of a

• and 600 °C as well. The corresponding XRD patterns, Raman spectra and SEM images are given in Figure S1 and Figure S2, respectively, in Supporting Information File 1. In order to understand the supercapacitor behavior of rGO and H-rGO (hydrogen-treated rGO) samples, we have carried out cyclic

• voltammetry and CD experiments with three-electrode system using 1 M H2SO4 as electrolyte (Figure 8). CV curves of rGO and H-rGO at different scan rates from 5 to 200 mV·s−1 vs Hg/Hg2SO4 are shown in Figure 8a and Figure 8b, respectively. These curves show increase in current density with decreasing scan rate