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Search for "composites" in Full Text gives 344 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Conjugated photothermal materials and structure design for solar steam generation

  • Chia-Yang Lin and
  • Tsuyoshi Michinobu

Beilstein J. Nanotechnol. 2023, 14, 454–466, doi:10.3762/bjnano.14.36

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  • composite in the 250–2500 nm range. The solar spectrum is also shown for comparison. Figure 8 was reprinted from [47], Polymer, vol. 217, by Y. Zou; P. Yang; L. Yang; N. Li; G. Duan; X. Liu; Y. Li, “Boosting solar steam generation by photothermal enhanced polydopamine/wood composites“, article no. 123464
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Published 04 Apr 2023

Molecular nanoarchitectonics: unification of nanotechnology and molecular/materials science

  • Katsuhiko Ariga

Beilstein J. Nanotechnol. 2023, 14, 434–453, doi:10.3762/bjnano.14.35

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  • new types of physics and chemistry at the nanoscale could be developed. Furthermore, such conductive polymer wires can be covalently linked to other functional components. Covalent bonding of functional molecules and conductive polymers to synthesize molecular composites at designated positions on a
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Published 03 Apr 2023

Plasmonic nanotechnology for photothermal applications – an evaluation

  • A. R. Indhu,
  • L. Keerthana and
  • Gnanaprakash Dharmalingam

Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33

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Published 27 Mar 2023

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

  • Akeem Adeyemi Oladipo and
  • Faisal Suleiman Mustafa

Beilstein J. Nanotechnol. 2023, 14, 291–321, doi:10.3762/bjnano.14.26

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  • , element substitutions, intercalation compounds, plasmon sensitization, heterojunctions, and composites [72][110][118][119]. Several synthesis techniques have been used as summarised in Figure 4. Several synthesis procedures for bismuth-based photocatalysts have already been published [25][88][119][120
  • light absorption, weaker charge separation, and poor charge carrier mobility. Researchers are concentrating on several strategies, such as doping, heterojunction formation, induction of the surface plasmon resonance effect, and the formation of Z-schemes, Schottky junctions, and engineered composites
  • of heterojunction systems have been overcome by Z-scheme photocatalysis systems, surface plasmon resonance effect, and Schottky junctions. An innovative method for further enhancing sunlight-driven photocatalytic performance in comparison to conventional heterojunction composites is to develop a Z
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Published 03 Mar 2023

Cyclodextrins as eminent constituents in nanoarchitectonics for drug delivery systems

  • Makoto Komiyama

Beilstein J. Nanotechnol. 2023, 14, 218–232, doi:10.3762/bjnano.14.21

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  • with appropriate carriers to fulfill several requirements. First, the composite needs be sufficiently stable in the body and successfully reach the target site without being trapped. Second, the composites must be efficiently internalized to the target tissues and cells. Finally, the drugs must be
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Published 09 Feb 2023

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

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  • [12][13][14]. Recently, nanoarchitectonics approaches have been used to fabricate various materials for energy-related applications, including carbon-based composites [15][16], Pt-based nanostructures and composites with carbon materials [17][18][19], and metal alloys deposited on TiO2 [20]. The most
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Published 02 Feb 2023

Structural, optical, and bioimaging characterization of carbon quantum dots solvothermally synthesized from o-phenylenediamine

  • Zoran M. Marković,
  • Milica D. Budimir,
  • Martin Danko,
  • Dušan D. Milivojević,
  • Pavel Kubat,
  • Danica Z. Zmejkoski,
  • Vladimir B. Pavlović,
  • Marija M. Mojsin,
  • Milena J. Stevanović and
  • Biljana M. Todorović Marković

Beilstein J. Nanotechnol. 2023, 14, 165–174, doi:10.3762/bjnano.14.17

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  • (nitrogen, chlorine, and fluorine) affected structural properties and ROS production with or without visible light irradiation. In addition, we examined antibacterial and cytotoxic properties. An important issue is the preparation of CQDs and polymer-based composites and their possible antibacterial
  • cytotoxic properties of CQDs and CQD/polyurethane composites. Results and Discussion Surface morphology Figure S1 (Supporting Information File 1) presents the surface morphology of the CQD samples. Figure S1a shows a TEM micrograph of CQDs. The average diameter of these dots is 4 ± 1 nm. A top-view AFM
  • any antibacterial activity against E. coli and B. suptilis. In this study, antibacterial testing of all samples was conducted against two bacterial strains, namely S. aureus and E. coli. The results presented in Table S1 (Supporting Information File 1) showed that CQDs/PU composites prepared from o
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Published 30 Jan 2023

Antimicrobial and mechanical properties of functionalized textile by nanoarchitectured photoinduced Ag@polymer coating

  • Jessica Plé,
  • Marine Dabert,
  • Helene Lecoq,
  • Sophie Hellé,
  • Lydie Ploux and
  • Lavinia Balan

Beilstein J. Nanotechnol. 2023, 14, 95–109, doi:10.3762/bjnano.14.11

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  • forces, which ultimately extends the lifetime of the functionalized textile. The antimicrobial properties of MNP-polymer composites have been extensively investigated [42][43][44] and research has gone into functionalizing textile fibers with the nanocomposites in situ [45][46]. Few studies seem to have
  • antimicrobial activity due to the increased amount of available silver. Conclusion The innovative photoinduced approach led to the successful functionalization of nano-architectured Ag@polymer composites onto textile substrates. Two different biocompatible polymer matrixes were compared in terms of AgNP growth
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Published 12 Jan 2023

Liquid phase exfoliation of talc: effect of the medium on flake size and shape

  • Samuel M. Sousa,
  • Helane L. O. Morais,
  • Joyce C. C. Santos,
  • Ana Paula M. Barboza,
  • Bernardo R. A. Neves,
  • Elisângela S. Pinto and
  • Mariana C. Prado

Beilstein J. Nanotechnol. 2023, 14, 68–78, doi:10.3762/bjnano.14.8

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  • flexural rigidity is about three times that of graphene but it can be bent to small curvatures without fracturing. These properties make nanoscale talc a promising candidate for the application [14][15][18] as reinforcement for polymers and other composites, including biocompatible materials, and van der
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Published 09 Jan 2023

The influence of structure and local structural defects on the magnetic properties of cobalt nanofilms

  • Alexander Vakhrushev,
  • Aleksey Fedotov,
  • Olesya Severyukhina and
  • Anatolie Sidorenko

Beilstein J. Nanotechnol. 2023, 14, 23–33, doi:10.3762/bjnano.14.3

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  • theories actively consider composites with shape memory [11][12]. Such composites are also called intelligent materials of the future [13] due to their unique functional properties and the possibility of restoring the original parameters under certain external conditions. Both thermodynamic conditions [14
  • . Studying the role of magnetism on the structural features of composites opens up promising possibilities, since it allows predicting and creating new materials with controllable properties. The idea of mutual correlation between material structure and its magnetic properties is being developed in the field
  • with nanofilm deposition will be referred to as the real one. The small size of the system in question was chosen for several reasons. First, the actual produced nanofilms in composites of cobalt and niobium have a small thickness, reaching 1–2 nm in some layers. Of practical interest are structural
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Published 04 Jan 2023

Two-step single-reactor synthesis of oleic acid- or undecylenic acid-stabilized magnetic nanoparticles by thermal decomposition

  • Mykhailo Nahorniak,
  • Pamela Pasetto,
  • Jean-Marc Greneche,
  • Volodymyr Samaryk,
  • Sandy Auguste,
  • Anthony Rousseau,
  • Nataliya Nosova and
  • Serhii Varvarenko

Beilstein J. Nanotechnol. 2023, 14, 11–22, doi:10.3762/bjnano.14.2

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  • used in biomedicine and in the production of composites with specified properties. Experimental Materials and methods Fe(III) acetylacetonate (Fe(III) 2,4-pentadienoate, 97%), undecylenic acid (UA, 96%), paraffin (used after recrystallization), diphenyl (99%), 1-octadecene (91%), and propanone were
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Published 03 Jan 2023

Photoelectrochemical water oxidation over TiO2 nanotubes modified with MoS2 and g-C3N4

  • Phuong Hoang Nguyen,
  • Thi Minh Cao,
  • Tho Truong Nguyen,
  • Hien Duy Tong and
  • Viet Van Pham

Beilstein J. Nanotechnol. 2022, 13, 1541–1550, doi:10.3762/bjnano.13.127

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  • bonds, there are vibrations of composites of TNAs with MoS2 (between 420 and 1620 cm−1) and g-C3N4 (between 1200 and 1640 cm−1 for C–N bonds and 807 cm−1 for tri-s-triazine subunit). The peaks in the wavenumber range between 3400 and 1625 cm−1 of all samples are typical for stretching vibrations of the
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Published 16 Dec 2022

Hydroxyapatite–bioglass nanocomposites: Structural, mechanical, and biological aspects

  • Olga Shikimaka,
  • Mihaela Bivol,
  • Bogdan A. Sava,
  • Marius Dumitru,
  • Christu Tardei,
  • Beatrice G. Sbarcea,
  • Daria Grabco,
  • Constantin Pyrtsac,
  • Daria Topal,
  • Andrian Prisacaru,
  • Vitalie Cobzac and
  • Viorel Nacu

Beilstein J. Nanotechnol. 2022, 13, 1490–1504, doi:10.3762/bjnano.13.123

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  • investigated. It was found that all of these factors affect the final composition and microstructure, especially, porosity, which shows significantly lower values for HAP-based composites than for HAG-based ones and higher values for higher glass content. This, in turn, has an impact on the microhardness
  • composition of bone, has a low resorption in physiologic environment and, therefore, does not form a tough bond with the bone [2]. The development of hydroxyapatite–bioglass (HA-BG) composites aimed to overcome this problem [3][4][5]. In these composites, the biocompatibility of HA is combined with the
  • glass in the HA-BG composites may stimulate the transformation of HA into tricalcium phosphate (TCP) during the sintering at high temperatures, inducing more reactivity of the material in the physiologic environment [4][20]. The HA-TCP transformation can be controlled through the glass fraction and the
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Published 12 Dec 2022

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

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  • modified screen-printed carbon electrode Surface morphology and structural characterisation Field-emission scanning electron microscopy (FESEM) images of nanoparticles and their composites are depicted in Figure 2a–b, where the wrinkled regions represent specific patterns of different materials. In Figure
  • the composite (Figure 2f) indicated the presence of AuNPs. Fourier-transform infrared spectroscopy (FTIR) was used to investigate the vibrational spectrum of the functional groups present in the nanoparticles and their composites. The FTIR spectra of Gr, AuNPs, and DNA/AuNPs/Gr were fused in Figure 2g
  • of different nanoparticles and their composites. FESEM images of (a) Gr and (b) AuNPs/Gr; EDX of images of (c) Gr and (d) AuNPs/Gr; UV–vis spectra of (e) Gr and (f) AuNPs/Gr; and FTIR spectra of (g) Gr, AuNPs/Gr, and DNA/AuNPs/Gr. AuNPs were taken (33.33%, 1:3) in the AuNPs/Gr nanocomposite
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Published 06 Dec 2022

Facile preparation of Au- and BODIPY-grafted lipid nanoparticles for synergized photothermal therapy

  • Yuran Wang,
  • Xudong Li,
  • Haijun Chen and
  • Yu Gao

Beilstein J. Nanotechnol. 2022, 13, 1432–1444, doi:10.3762/bjnano.13.118

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  • ]. BODIPY-AuNP conjugates and BODIPY-AuNP composites were also reported for diagnosis and photodynamic therapy (PDT) [15][16][17]. Hence, we aimed to synthesize a common halogenated BODIPY compound (BDP) and further modified Au-LNPs with BDP for synergized PTT (Scheme 1). According to [8], we prepared Au
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Published 02 Dec 2022

Recent trends in Bi-based nanomaterials: challenges, fabrication, enhancement techniques, and environmental applications

  • Vishal Dutta,
  • Ankush Chauhan,
  • Ritesh Verma,
  • C. Gopalkrishnan and
  • Van-Huy Nguyen

Beilstein J. Nanotechnol. 2022, 13, 1316–1336, doi:10.3762/bjnano.13.109

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  • energies. Many persistent organic contaminants can be degraded at room temperature through the oxidizing power of VB holes in bismuth oxyhalides [26]. BiOCl, BOI, BiOBr, and composites made from them have been widely reported due to their excellent photocatalytic properties [27][28][29]. However, the
  • also reported. The Fenelon group successfully fabricated SnO2 and Bi2S3–Bi25 composites via a facile hydrothermal technique followed by thermal breakdown [27]. The photocatalytic performance of the fabricated ternary composite photocatalyst was 2.75 times higher than that of pristine Bi2S3 for the
  • simple hydrothermal technique was applied by Liu et al. to modify BiVO4 heterojunctions with carbon quantum dots [106]. Exceptional photocatalytic performance for the degradation of RhB dye under visible light was exhibited by CNQDs-ms/tz-BiVO4 and NCQDs-ms/tz-BiVO4 composites. The reason for their
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Published 11 Nov 2022

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

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  • . AFM probes based on these C–C composites' high aspect ratio tips produced highly high image resolution and good wear resistance, with no degradation of tip or image quality observed after 400 images had been acquired. Compared with the above composite probes, the combination with metal nanowires also
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Published 03 Nov 2022

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

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  • can be easily grown on substrates to form nanoscale networks and perform well in MEGs due to their unique electron transport properties [2][47][48]. This includes Al2O3 [49], MoS2 [50][51], Ni–Al layered double hydroxide (LDH) [52], MoS2/SiO2 composites [53], TiO2 [54], and Ti3C2Tx MXene nanosheets
  • multiple device connections in parallel and series, and polyethylene derivative composites can be fabricated as large-area textiles [77]. Therefore, it is expected that there will be more studies on the application of polyethylene derivative MEGs. 3.2 Nanocellulose Among organic materials, nanocellulose is
  • ). There are also PVA@DA/PVDF NF composites that can efficiently generate instantaneous voltages up to 0.5 V from ambient moisture (Figure 10j). However, because of different issues regarding daily practical applications, such as sweat corrosion, biological toxicity on human skin, and the need for suitable
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Published 25 Oct 2022

Recent advances in green carbon dots (2015–2022): synthesis, metal ion sensing, and biological applications

  • Aisha Kanwal,
  • Naheed Bibi,
  • Sajjad Hyder,
  • Arif Muhammad,
  • Hao Ren,
  • Jiangtao Liu and
  • Zhongli Lei

Beilstein J. Nanotechnol. 2022, 13, 1068–1107, doi:10.3762/bjnano.13.93

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Published 05 Oct 2022

Biomimetic chitosan with biocomposite nanomaterials for bone tissue repair and regeneration

  • Se-Kwon Kim,
  • Sesha Subramanian Murugan,
  • Pandurang Appana Dalavi,
  • Sebanti Gupta,
  • Sukumaran Anil,
  • Gi Hun Seong and
  • Jayachandran Venkatesan

Beilstein J. Nanotechnol. 2022, 13, 1051–1067, doi:10.3762/bjnano.13.92

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  • materials should be in the form of inorganic and organic composites. To mimic the inorganic portion, researchers have tried to utilize calcium phosphate materials due to their similarity to the native tissue. To mimic the organic portion of the bone, several materials including polymers, proteins, and
  • carbon-based materials have been tested. Biomaterials for bone graft substitutes Hydroxyapatite and its composites have been widely utilized/studied biomaterials for bone tissue engineering [35][36]. Hydroxyapatite with several polymeric materials has been used to mimic the natural function of the bone
  • . However, the drawbacks of using growth factors and enzymes are stability, high cost, and low availability. To overcome these issues, bioactive materials are often studied to mimic the natural function of growth factors. Several researchers are studying nanomaterial-based chitosan composites regarding
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Published 29 Sep 2022

Spindle-like MIL101(Fe) decorated with Bi2O3 nanoparticles for enhanced degradation of chlortetracycline under visible-light irradiation

  • Chen-chen Hao,
  • Fang-yan Chen,
  • Kun Bian,
  • Yu-bin Tang and
  • Wei-long Shi

Beilstein J. Nanotechnol. 2022, 13, 1038–1050, doi:10.3762/bjnano.13.91

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  • -lined steel autoclave and heated at 110 °C for 24 h. The orange solid product collected by centrifugation was rinsed by deionized water and ethanol for several times to remove unreacted substances, dried at 60 °C for 10 h in a vacuum oven, and ground to obtain Bi2O3/MIL101(Fe) composites. The as
  • ). Figure 3d shows an HRTEM image of BOM-20 composites. The lattice fringes of 0.37 nm correspond to the (120) facet of α-Bi2O3 [55]. Meanwhile, the tight contact interface between Bi2O3 and MIL101(Fe) can be clearly observed. Furthermore, the elemental mapping images of BOM-20 (Figure 3e–h) reveal the
  • BOM-20 composites. In the high-resolution spectrum of Fe 2p (Figure 4b), peaks at 725.2 and 711.4 eV are ascribed to Fe 2p1/2 and 2p3/2, respectively, implying the existence of Fe–O bonds [37]. The difference of binding energy between these two peaks is 13.9 eV, suggesting the presence of Fe3+ in BOM
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Published 28 Sep 2022

Recent advances in nanoarchitectures of monocrystalline coordination polymers through confined assembly

  • Lingling Xia,
  • Qinyue Wang and
  • Ming Hu

Beilstein J. Nanotechnol. 2022, 13, 763–777, doi:10.3762/bjnano.13.67

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  • connected branches suggests that the channel walls can be encapsulated by single crystals. This is a basis for the formation of composites with a single crystal matrix. When solid networks are immersed into a solution of coordination polymers, the connected space among the networks can be seen as connected
  • ]. There are several parameters of the single crystals, such as defects, hydrophilicity, and dispersity in water, that determine the performance of the composites in biomedicine [106][107]. To introduce more controllable and repeatable synthetic methods to tailor the parameters of monocrystalline
  • challenges to be tackled in the future. First, the detailed structures of the networks@crystal are difficult to investigate. The atomic structures of the composites are easily lost during observation because the coordination polymers are not stable under electron irradiation. Moreover, when the composites
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Published 12 Aug 2022

Hierarchical Bi2WO6/TiO2-nanotube composites derived from natural cellulose for visible-light photocatalytic treatment of pollutants

  • Zehao Lin,
  • Zhan Yang and
  • Jianguo Huang

Beilstein J. Nanotechnol. 2022, 13, 745–762, doi:10.3762/bjnano.13.66

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  • Zehao Lin Zhan Yang Jianguo Huang Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China Shenzhen Middle School, Shenzhen, Guangdong 518001, P. R. China 10.3762/bjnano.13.66 Abstract A series of Bi2WO6/TiO2-nanotube (Bi2WO6/TiO2-NT) heterostructured composites were
  • nanotubes were formed by TiO2 nanotubes that uniformly anchored with Bi2WO6 nanoparticles of various densities on the surface. The composites exhibited improved photocatalytic activities toward the reduction of Cr(VI) and degradation of rhodamine B under visible light (λ > 420 nm), which were attributed to
  • ][8]. However, the wide bandgap of TiO2 inhibits the absorption of light in the visible region and the rapid recombination of photogenerated electron−hole pairs restrains its photocatalytic activity. It has been verified that constructing TiO2-based heterostructured composites by using visible-light
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Published 04 Aug 2022

Nanoarchitectonics of the cathode to improve the reversibility of Li–O2 batteries

  • Hien Thi Thu Pham,
  • Jonghyeok Yun,
  • So Yeun Kim,
  • Sang A Han,
  • Jung Ho Kim,
  • Jong-Won Lee and
  • Min-Sik Park

Beilstein J. Nanotechnol. 2022, 13, 689–698, doi:10.3762/bjnano.13.61

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  • sufficient diffusion pathways for oxygen and electrolyte in the cathode. The ratio of Zn/Co in the starting materials greatly affects the microstructure and porosity of the resulting bimetallic ZIF–carbon/CNT composites. The correlation between the microstructure and the electrochemical performance of the
  • bimetallic ZIF–carbon/CNT composites has been thoroughly investigated for their practical use as potential cathode materials for high-performance LOBs. Results and Discussion In pursuit of improving the reversibility of LOBs, a bimetallic ZIF (ZnxCoy) was designed and grown on CNTs via hydrothermal synthesis
  • ratio of Zn/Co (x/y = 1/4, 1/1, and 4/1) in the starting materials. After carbonization at 900 °C and chemical etching with 1 M H2SO4, bimetallic ZnxCoy–C/CNT composites were successfully obtained to be used as cathode materials for LOBs. Figure 1b–d shows the morphologies of bimetallic Zn4Co1, Zn1Co1
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Published 21 Jul 2022

Reliable fabrication of transparent conducting films by cascade centrifugation and Langmuir–Blodgett deposition of electrochemically exfoliated graphene

  • Teodora Vićentić,
  • Stevan Andrić,
  • Vladimir Rajić and
  • Marko Spasenović

Beilstein J. Nanotechnol. 2022, 13, 666–674, doi:10.3762/bjnano.13.58

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  • exfoliation result in solutions that contain flakes of different sizes, that is, the solutions are polydisperse. Polydispersity is a significant problem regarding the use of solution-processed graphene, because many applications are size-dependent. On the one hand, for example, for use in composites, flakes
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Published 18 Jul 2022
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