Pulsed laser in liquid grafting of gold nanoparticle–carbon support composites

• Madeleine K. Wilsey,
• Teona Taseska,
• Qishen Lyu,
• Connor P. Cox and
• Astrid M. Müller

Beilstein J. Nanotechnol. 2025, 16, 349–361, doi:10.3762/bjnano.16.26

• electrocatalytic hydrogen evolution in aqueous bicarbonate reduction. Keywords: catalysis; composite; electroreduction; gold nanoparticles; impedance; Introduction The main challenge in the manufacturing of nanocatalyst-containing electrodes is the attachment of nanoparticles on electrode supports. Nanoparticles

Ni, Co, Zn, and Cu metal-organic framework-based nanomaterials for electrochemical reduction of CO₂: A review

• Ha Huu Do and
• Hai Bang Truong

Beilstein J. Nanotechnol. 2023, 14, 904–911, doi:10.3762/bjnano.14.74

• efficiency of catalysts at various potentials, (d) Faradaic efficiency of catalysts as functions of the time. Figure 5 was adapted from [49]. (“Cathodized copper porphyrin metal–organic framework nanosheets for selective formate and acetate production from CO2 electroreduction”, © 2019 J.-X. Wu et al

Studies of probe tip materials by atomic force microscopy: a review

• Ke Xu and
• Yuzhe Liu

Beilstein J. Nanotechnol. 2022, 13, 1256–1267, doi:10.3762/bjnano.13.104

• channel structures. A faster, one-step technique for growing gold nanowires at the tips of commercial conductive AFM is proposed compared to the above methods. Bakhti et al. [35] grew gold nanowires at the tips of conductive AFM nanoprobes by electroreduction direct deposition based on the deposition of

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

• , Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur – 603203, Tamil Nadu, India 10.3762/bjnano.13.89 Abstract Silver-based electrocatalysts as promising substitutes for platinum materials for cathodic oxygen electroreduction have been extensively researched

• ; microwave synthesis; oxygen electroreduction; reduced graphene oxide; silver NPs; Introduction Fuel cells and rechargeable metal–air batteries have become an integral part of the renewable energy system because of their superior efficiency, high power density, and reliability. Also, they are

• electrocatalytic activity towards ORR in alkaline media in comparison to the other samples. For more insight into the oxygen electroreduction kinetics, ORR measurements were carried out at different rotating speeds from 400 to 2500 rpm. Figure 3b shows an onset potential of 0.94 V vs RHE with a considerable

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

• lattice), and 2700 cm−1 for the 2D band (related to numbers of layers in the graphene sheet). Table 1 shows the values of ID/IG at different electrolytic buffers during one-step electroreduction of GO at a constant potential of −0.9 V. The intensity of ID/IG predominantly increased for ERGO compared to

• effect of pH on the electroreduction of PT (40 μM) by varying the pH values of PBS from 4.6 to 9. The irreversible reduction potential of PT was shifted towards a more negative potential as the pH values of the electrolyte varied from 4.5 to 9 (Figure 7D). The slope of the reduction peak (Epc) and

Stability and activity of platinum nanoparticles in the oxygen electroreduction reaction: is size or uniformity of primary importance?

• Kirill O. Paperzh,
• Anastasia A. Alekseenko,
• Vadim A. Volochaev,
• Ilya V. Pankov,
• Olga A. Safronenko and
• Vladimir E. Guterman

Beilstein J. Nanotechnol. 2021, 12, 593–606, doi:10.3762/bjnano.12.49

• liquid-phase synthesis. A comparative study of the structural characteristics, catalytic activity in the oxygen electroreduction reaction (ORR), and durability of the synthesized catalysts, as well as their commercial analogs, was carried out. It was shown that the uniformity of the structural and

• friendliness, low operating temperature, and high adaptability of specific characteristics [1][2][3]. The key components of PEMFC membrane–electrode assemblies (MEA) are the proton-exchange polymer membrane and porous electrode layers, in which current-forming reactions of oxygen electroreduction (ORR) and

• multistage oxygen electroreduction reaction. When comparing platinum catalysts based on the same carbon support, differences in their electrochemical behavior are determined by the difference in the composition (Pt loading in Pt/C), structure (shape and size of the platinum NPs, dispersion of their size, and

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

• anions originating from the electrolyte during electrooxidation/electroreduction cycles [35]. Moreover, the overpotential of EDOT oxidation is lower in NaPSS aqueous electrolyte (in comparison with, e.g., NaCl) [36]. Electrodepositon was performed using 400, short (0.2 s) potentiostatic pulses (E = 1 V

Semi-automatic spray pyrolysis deposition of thin, transparent, titania films as blocking layers for dye-sensitized and perovskite solar cells

• Hana Krýsová,
• Josef Krýsa and
• Ladislav Kavan

Beilstein J. Nanotechnol. 2018, 9, 1135–1145, doi:10.3762/bjnano.9.105

• acetylacetone (see Experimental section). Although the 70 SC TAA film has already quite good blocking properties even after post-calcination, examination of the details in the curves shows that the TAA-AcAc films are still better. The shift of the electroreduction peak, or in some cases the missing

• electroreduction (at −0.2 V), is a sign of good coverage of the electroactive FTO by the TiO2 film, which has properties comparable to those of a perfect anatase single crystal. The latter has a flat band potential (φFB) (cf. Equation 1) at ≈−0.5 V at the given experimental conditions (as in Figure 8). Hence, no

• electroreduction of ferricyanide to ferrocyanide is expected to occur at −0.2 V, because anatase is in the depletion regime. This is indeed observed for our TAA-AcAc films. Actually, the occurrence of the electroreduction peak at −0.2 V at some other compact (pinhole-free) TiO2 layers (cf. Figure 6) is less clear

Scalable, high performance, enzymatic cathodes based on nanoimprint lithography

• Dmitry Pankratov,
• Richard Sundberg,
• Javier Sotres,
• Dmitry B. Suyatin,
• Ivan Maximov,
• Sergey Shleev and
• Lars Montelius

Beilstein J. Nanotechnol. 2015, 6, 1377–1384, doi:10.3762/bjnano.6.142

• , enzymatic electrodes for oxygen bio-electroreduction, which can be easily and reproducibly fabricated with industry-scale throughput. Planar and nanostructured electrodes were built on biocompatible, flexible polymer sheets, while nanoimprint lithography was used for electrode nanostructuring. To the best

• , especially multicopper oxidases (MCOs) [2][3]. In nature, MCOs catalyse the oxidation of many organic and inorganic compounds (electron donors) using O2 as the only electron acceptor [4]. The O2 bio-electroreduction mechanism involves electron transfer from the electrode to the T1 copper (Cu) site with the

• measurements of the biomodified electrodes (both BOx/Au and BOx/NIL/Au) were performed in O2-saturated PBS, an open-circuit potential (OCP) of O2 bio-electroreduction for both types of electrodes was recorded as 0.75 ± 0.03 V vs NHE, that is, very close to the redox equilibrium potential of the O2/H2O couple