Influence of conductive carbon and MnCo₂O₄ on morphological and electrical properties of hydrogels for electrochemical energy conversion

• Sylwia Pawłowska,
• Karolina Cysewska,
• Yasamin Ziai,
• Jakub Karczewski,
• Piotr Jasiński and
• Sebastian Molin

Beilstein J. Nanotechnol. 2024, 15, 57–70, doi:10.3762/bjnano.15.6

• porous structure is capable of swelling and thus accommodating large amounts of ionic liquids. Moreover, the swollen hydrogel structure provides constant access of electrolyte molecules/ions to the catalyst particles, increasing the speed and efficiency of the electrochemical reaction [20]. The swelling

• large as possible. The porous microstructure of the hydrogel matrix is capable of swelling and thus accommodating significant amounts of ionic liquids. Such a structure provides constant access of the electrolyte molecules/ions to the catalyst particles surrounding it, increasing the speed and

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

Application of nanoarchitectonics in moist-electric generation

• Jia-Cheng Feng and
• Hong Xia

Beilstein J. Nanotechnol. 2022, 13, 1185–1200, doi:10.3762/bjnano.13.99

• potential difference between the two sides of the membrane can be created The thickness and the size of the nanochannels of this membrane will influence the effect of asymmetric ion diffusion. This asymmetric ion diffusion can produce a maximum electrical output of 0.3 V and 0.1 μA. The selections of ionic

• liquids, the selection of ion-permeable membranes, and the effects of surface functional groups are discussed in detail in the paper and will not be repeated here. By adding an ion-selective membrane, ion concentration diffusion can take place in the fluid, not just in the bulk material. This innovation

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

• techniques, such as the addition of ionic liquids (ILs) with low viscosity and high dielectric constant values or some suitable fillers have been used by the research community to increase the ionic conductivity of polymer electrolytes [6][7]. As mentioned above, one way to increase the ionic conductivity is

The role of deep eutectic solvents and carrageenan in synthesizing biocompatible anisotropic metal nanoparticles

• Nabojit Das,
• Akash Kumar and
• Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2021, 12, 924–938, doi:10.3762/bjnano.12.69

• nanomaterials in CO2 mitigation and climate change control [20][21][22]. Several other studies reported novel environmental remediation approaches based on nanomaterials [23][24]. Deep eutectic solvents (DESs) are a class of nascent sustainable, non-aqueous solvents, comparable to room-temperature ionic liquids

Nickel nanoparticle-decorated reduced graphene oxide/WO₃ nanocomposite – a promising candidate for gas sensing

• Ilka Simon,
• Alexandr Savitsky,
• Rolf Mülhaupt,
• Vladimir Pankov and
• Christoph Janiak

Beilstein J. Nanotechnol. 2021, 12, 343–353, doi:10.3762/bjnano.12.28

• can be easily synthesized from the precursor material bis(1,5-cyclooctadiene)nickel(0) (Ni(COD)2) in different ionic liquids without any additional stabilizing or reducing agents [46]. Ionic liquids have the ability to exfoliate graphene oxide into single sheets. Thus, a higher surface area can be

• achieved [47]. Thermally reduced graphene oxide was tested before with different metals in ionic liquids [48][49]. The decoration of nanoparticles on rGO can be achieved in situ or by mixing previously prepared solutions [50]. Here, we chose the ionic liquid [BMIm][NTf2] for an in situ microwave

Bio-imaging with the helium-ion microscope: A review

• Matthias Schmidt,
• James M. Byrne and
• Ilari J. Maasilta

Beilstein J. Nanotechnol. 2021, 12, 1–23, doi:10.3762/bjnano.12.1

• alternative approach to the fixation, dehydration, drying, and even coating stages outlined above is to apply ionic liquids during sample preparation. Ionic liquids are organic salts with low melting points which are fluid at room temperature. They are persistent as liquids under the high-vacuum conditions of

• a typical electron microscope and exhibit conductive properties. This means that samples can be immersed in an ionic liquid, for 10–600 s, blotted, loaded onto a sample holder, and then imaged [68]. Compared to other preparation techniques, the preparation time using ionic liquids is extremely short

An advanced structural characterization of templated meso-macroporous carbon monoliths by small- and wide-angle scattering techniques

• Felix M. Badaczewski,
• Marc O. Loeh,
• Torben Pfaff,
• Dirk Wallacher,
• Daniel Clemens and
• Bernd M. Smarsly

Beilstein J. Nanotechnol. 2020, 11, 310–322, doi:10.3762/bjnano.11.23

• carbonate [60], propylene carbonate [61] and ionic liquids [1] in contrast to argon. Furthermore, the adsorption of xylene isomers is an important step for synthesizing polyethylene terephthalate (PET) and polybutylene terephthalate (PBT) [62]. Moreover, Ar physisorption measurements are conducted at 87 K

High-tolerance crystalline hydrogels formed from self-assembling cyclic dipeptide

• Yongcai You,
• Ruirui Xing,
• Qianli Zou,
• Feng Shi and
• Xuehai Yan

Beilstein J. Nanotechnol. 2019, 10, 1894–1901, doi:10.3762/bjnano.10.184

• focused on the amorphous assemblies in organic solvents and ionic liquids [42][43][44][45][46]. Although these CDP gels have good mechanical properties and deceased enzymatic degradation under physiological conditions, they still have some challenging problems such as inflexibility, low biosecurity and

Biocatalytic oligomerization-induced self-assembly of crystalline cellulose oligomers into nanoribbon networks assisted by organic solvents

• Yuuki Hata,
• Yuka Fukaya,
• Toshiki Sawada,
• Masahito Nishiura and
• Takeshi Serizawa

Beilstein J. Nanotechnol. 2019, 10, 1778–1788, doi:10.3762/bjnano.10.173

• , represented by ionic liquids [23], which are known (or considered) to dissolve cellulose via direct interactions. Furthermore, the introduction of functional groups at the terminal of cellulose oligomers [34][35][36][37][38][39][40] significantly expands the variety of available molecular species that can

Synthesis of nickel/gallium nanoalloys using a dual-source approach in 1-alkyl-3-methylimidazole ionic liquids

• Ilka Simon,
• Julius Hornung,
• Juri Barthel,
• Jörg Thomas,
• Maik Finze,
• Roland A. Fischer and
• Christoph Janiak

Beilstein J. Nanotechnol. 2019, 10, 1754–1767, doi:10.3762/bjnano.10.171

• conversion values. IL-free, precipitated NiGa nanoparticles achieve conversion values of over 90% and selectivity of 100% towards alkene over three runs. Keywords: ionic liquids; microwave decomposition; nickel/gallium nanoparticles; semihydrogenation catalysis; soft wet-chemical synthesis; Introduction

• [17]. Alternatively, ionic liquids can be used as solvents and stabilization agents for different metal nanoparticles from metal carbonyls [18] or organometallic complexes [19]. Ni nanoparticles from Ni(COD)2 in ionic liquids can be obtained through spontaneous decomposition [20] or decomposition

• ionic liquids decomposition of GaCp* is possible at temperatures below 300 °C with the aid of transition metals. Reactions of transition-metal complexes are reported to show H/D activation/exchange reactions at the C2 imidazolium carbon atom of the ionic liquid cation. The generated N-heterocyclic

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

• , co-doping with P and N was found to be an effective way of increasing the ORR activity of carbon materials [22][23][24][25][26]. Most of the reported PN-doping techniques involve the carbonization of [N-containing polymer + P-containing compound] mixtures or of ionic liquids containing both N and P

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

• introduction of small amounts of ionic liquids (ILs), which are known as NP stabilizers, including on carbon supports [26], into Pt-based catalysts can further improve the ORR performance. This is likely due to the high O2 solubility in the IL phase [27]. It was also demonstrated that the choice of the carbon

Porous N- and S-doped carbon–carbon composite electrodes by soft-templating for redox flow batteries

• Maike Schnucklake,
• László Eifert,
• Jonathan Schneider,
• Roswitha Zeis and
• Christina Roth

Beilstein J. Nanotechnol. 2019, 10, 1131–1139, doi:10.3762/bjnano.10.113

• novel composite electrodes that were synthesized utilizing the soft-template method inspired by Martinez de Yuso et al. from 2017 [23]. With this method we are able to reduce the cost for the precursor materials significantly. We are able to use pyrrole-2-carboxyaldehyde, instead of ionic liquids, as

Novel reversibly switchable wettability of superhydrophobic–superhydrophilic surfaces induced by charge injection and heating

• Xiangdong Ye,
• Junwen Hou and
• Dongbao Cai

Beilstein J. Nanotechnol. 2019, 10, 840–847, doi:10.3762/bjnano.10.84

• environments. At 150 V, the maximum contact angle could be reduced by 23° by electrical wetting in a reversible manner. Li et al. [23] studied the diffusion of droplets of ionic liquids on an insulating electrode subjected to an external voltage. The catalytic effect of a vertical electric field on the

Deposition of metal particles onto semiconductor nanorods using an ionic liquid

• Michael D. Ballentine,
• Elizabeth G. Embry,
• Marco A. Garcia and
• Lawrence J. Hill

Beilstein J. Nanotechnol. 2019, 10, 718–724, doi:10.3762/bjnano.10.71

• using ionic liquids and metal salts without the need for additional reagents, and the deposited particles did not cause significant aggregation even when these materials were taken into organic media. It is possible that a broad range of metal/semiconductor heterostructured particles can be prepared

• dimensions smaller than 10 nm are commonly reported with small deviations in the distribution of nanorod lengths. Another widely investigated approach to nanoparticle synthesis uses ionic liquids as solvents for the synthesis of nanoparticles without the need for additional stabilizing surfactants [13][14

• ][15][16][17]. The low surface tension of ionic liquids causes high nucleation rates and allows for the synthesis of small nanoparticles with minimal Ostwald ripening [17]. Further, many ionic liquids consist of a large anion with diffuse negative charge; this lack of strongly binding anionic ligands

Electrolyte tuning in dye-sensitized solar cells with N-heterocyclic carbene (NHC) iron(II) sensitizers

• Mariia Karpacheva,
• Catherine E. Housecroft and
• Edwin C. Constable

Beilstein J. Nanotechnol. 2018, 9, 3069–3078, doi:10.3762/bjnano.9.285

• extensive interactions between imidazolium cations and polyiodide anions in ionic liquids doped with I2 [48] and this may be relevant to the use of ionic liquids in DSCs. The J–V curves in Figure 3 illustrate the effects on the performance of sensitizer 1 by using electrolytes with (E1–E4) and without (E1b

• JSC with little change in VOC, resulting in enhanced photoconversion efficiency. The choice of the ionic liquid in the electrolyte is critical. Of the four ionic liquids investigated and with the additive MBI present at a concentration of 0.5 M, the order of DSC performance in terms of ionic liquid is

• electrolytes with MPN (E1, E2) and MeCN (E1a, E2a) as solvents. J–V curves for DSCs containing dye 1 electrolytes E1–E4 with different ionic liquids. The solvent is MPN. J–V curves to illustrate the effects of removing the MBI additive from electrolytes E1–E4. J–V curves for DSCs with dye 1 and electrolytes E2

Magnetic and luminescent coordination networks based on imidazolium salts and lanthanides for sensitive ratiometric thermometry

• Pierre Farger,
• Cédric Leuvrey,
• Mathieu Gallart,
• Pierre Gilliot,
• Guillaume Rogez,
• João Rocha,
• Duarte Ananias,
• Pierre Rabu and
• Emilie Delahaye

Beilstein J. Nanotechnol. 2018, 9, 2775–2787, doi:10.3762/bjnano.9.259

• charged imidazolium dicarboxylate salts [31][32][33][34]. Contrarily to the classical imidazolium salts or ionic liquids used in ionothermal syntheses [35][36][37][38][39][40], the functionalization of imidazolium moieties with coordinating functions reduces the influence of the imidazolium salt on the

Nanocellulose: Recent advances and its prospects in environmental remediation

• Katrina Pui Yee Shak,
• Yean Ling Pang and
• Shee Keat Mah

Beilstein J. Nanotechnol. 2018, 9, 2479–2498, doi:10.3762/bjnano.9.232

• nanocellulose, which could be particularly useful for particle aggregation of negatively charged pollutants to coagulate and flocculate kaolin colloids as reported by Liimatainen et al. [79]. On the other hand, the utilization of green solvents (ionic liquids) as both solvent and catalyst for cellulose

• hydrolysis has become a popular alternative method for nanocellulose extraction. The extraction of nanocellulose using ionic liquids, such as 1-butyl-2-methyllimidazolium hydrogen sulphate (BmimHSO4), has been considered as a green approach for its economical process (due to high recovery of ionic liquid for

Nanotribology

• Enrico Gnecco,
• Susan Perkin,
• Andrea Vanossi and
• Ernst Meyer

Beilstein J. Nanotechnol. 2018, 9, 2330–2331, doi:10.3762/bjnano.9.217

• including nanodiamonds [1] and novel materials such as nitrogen-doped graphene oxide [2] and imidazolium-based ionic liquids [3] used as additives to mineral oils. Standard large-scale applications to steel surfaces, but also to a material of key importance in micro- and nanoelecromechanical systems, i.e

Recent highlights in nanoscale and mesoscale friction

• Andrea Vanossi,
• Dirk Dietzel,
• Andre Schirmeisen,
• Ernst Meyer,
• Rémy Pawlak,
• Thilo Glatzel,
• Marcin Kisiel,
• Shigeki Kawai and
• Nicola Manini

Beilstein J. Nanotechnol. 2018, 9, 1995–2014, doi:10.3762/bjnano.9.190

• . Focusing initially on liquid lubrication, research has investigated the possibility of controlling friction in unconventional fluids, in particular the room-temperature ionic liquids (RTILs). The RTIL microscopic structuring [106][107], and in particular their layering near surfaces [108][109][110][111

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

• -earth tris(N,N′-diisopropyl-2-methylamidinato)metal(III) complexes [RE{MeC(N(iPr)2)}3] (RE(amd)3; RE = Pr(III), Gd(III), Er(III)) and tris(2,2,6,6-tetramethyl-3,5-heptanedionato)europium(III) (Eu(dpm)3) induced by microwave heating in the ionic liquids (ILs) 1-butyl-3-methylimidazolium tetrafluoroborate

• diameters of (1.5 ± 0.5) to (5 ± 1) nm. The characterization was completed by energy-dispersive X-ray spectroscopy (EDX). Keywords: ionic liquids; metal amidinates; rare-earth metal-fluoride nanoparticles; rare-earth metal nanoparticles; soft wet-chemical synthesis; Introduction Rare-earth (RE) elements

• . Microwave heating and employing suitable ILs and PC as inert reaction media proved to be crucial. Ionic liquids are used as stabilizing reagents and as solvents in syntheses of nanoparticles [27][28][29][30][31]. In contrast to conventional stabilizers, such as surfactants or polymers, the ILs stabilize the

A simple extension of the commonly used fitting equation for oscillatory structural forces in case of silica nanoparticle suspensions

• Sebastian Schön and
• Regine von Klitzing

Beilstein J. Nanotechnol. 2018, 9, 1095–1107, doi:10.3762/bjnano.9.101

• Equation 2, is dominated by the parameter B. As mentioned already, the superposition of oscillatory structural forces and an additional repulsive term has been investigated before. The group of Perkin investigated ionic liquids in polar solvents [57][58]. In the latter using the same type of generic

Cyclodextrin-assisted synthesis of tailored mesoporous silica nanoparticles

• Fuat Topuz and
• Tamer Uyar

Beilstein J. Nanotechnol. 2018, 9, 693–703, doi:10.3762/bjnano.9.64

• change of MSNs from rods to platelets with depending on the concentration of heptane and NH4F [15]. MSNs were also synthesized in ellipsoidal and tubular forms using room-temperature ionic liquids (RTILs) as pore-templates [16]. Recently, single-walled carbon nanotube functionalized MSNs with grape-like