Transition from freestanding SnO₂ nanowires to laterally aligned nanowires with a simulation-based experimental design

• Jasmin-Clara Bürger,
• Sebastian Gutsch and
• Margit Zacharias

Beilstein J. Nanotechnol. 2020, 11, 843–853, doi:10.3762/bjnano.11.69

• lengths: for different process times (black, compare to Figure 6) and for a pulsed gas inflow for a different number of repeating steps (periods) (red, compare to Figure 8) catalyzed by Au NPs (Ø 80 nm). Funding J.-C. B. thanks the “German Academic Scholarship Foundation” for funding her study with a

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

• Renate Hiesgen who supervised this work before her death on November 16, 2018. Funding The authors gratefully acknowledge the funding by the Federal Ministry of Education and Research within the Framework Concept “Forschung an Fachhochschulen” (13FH113113IN6 and 03FH028IX4) and managed by the Project

Tuning the performance of vanadium redox flow batteries by modifying the structural defects of the carbon felt electrode

• Ditty Dixon,
• Deepu Joseph Babu,
• Aiswarya Bhaskar,
• Hans-Michael Bruns,
• Joerg J. Schneider,
• Frieder Scheiba and
• Helmut Ehrenberg

Beilstein J. Nanotechnol. 2019, 10, 1698–1706, doi:10.3762/bjnano.10.165

• reaction (HER) at the negative electrode [2][3][4]. The air oxidation of V2+ species can be completely prevented by keeping the negative tank under inert gas atmosphere. However, the HER at the negative electrode is almost unavoidable as the redox potential of V3+/V2+ (−0.26 V vs normal hydrogen electrode

• (NHE)) reaction is very close to HER (0 V vs NHE). To minimize the HER, the negative electrode surface structure should be tuned in such a way that it tends to preferably bind V3+/V2+ ions over H+ ions. Creating oxygen functional groups on the surface of the anode is one way to achieve this [5][6

• ]. Langner et al. have shown that on a functionalized electrode, in the presence of V3+, the HER is suppressed as the V3+ ions get preferentially bonded to the oxygen functional groups [6]. Furthermore, they proposed that it is essential to have at least 5% oxygen functionality on the surface of the carbon

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

• Ms. Chiaki Sasaki and Ms. Yuki Kobori for ORR activity measurements, Mr. Manabu Saito for TEM observation, Ms. Yukiko Sayama for her efforts as a word processing secretary. We also thank Editage (https://www.editage.jp) for English language editing.

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

• material. The highest capacitance achieved was 33 mF·cm−2 at a current density of 1 mA·cm−2, demonstrating potential application in supercapacitors. We further used the material as a cathode for the hydrogen evolution reaction (HER) with an onset potential of approximately −0.2 V vs RHE. The onset

• devices where high flexibility and mechanical strength are desired. Keywords: flexible composites; hydrogen evolution reaction (HER); lithium ion batteries (LIBs); molybdenum disulfide; nanoarchitectonics; supercapacitors; Introduction The world’s growing population has a nearly ever-increasing demand

• materials [26]. Another popular related field in the context of energy storage and sustainable energy production is water splitting to produce hydrogen. The best catalysts for the hydrogen evolution reaction (HER) are unequivocally based on platinum and iridium, however the scarcity and the high cost of

Effects of gold and PCL- or PLLA-coated silica nanoparticles on brain endothelial cells and the blood–brain barrier

• Aniela Bittner,
• Angélique D. Ducray,
• Hans Rudolf Widmer,
• Michael H. Stoffel and
• Meike Mevissen

Beilstein J. Nanotechnol. 2019, 10, 941–954, doi:10.3762/bjnano.10.95

• (°), respectively (B, C). (°/* = p ≤ 0.01; ** = p ≤ 0.0001). Antibodies. Acknowledgements The authors want to thank Véronique Gaschen for performing TEM, Helga Mogel for her assistance with microscopy and Nadja Peduto for her help with cell culture work. Microscopy was performed on equipment supported by the

In situ AFM visualization of Li–O₂ battery discharge products during redox cycling in an atmospherically controlled sample cell

• Kumar Virwani,
• Younes Ansari,
• Khanh Nguyen,
• Francisco José Alía Moreno-Ortiz,
• Jangwoo Kim,
• Maxwell J. Giammona,
• Ho-Cheol Kim and
• Young-Hye La

Beilstein J. Nanotechnol. 2019, 10, 930–940, doi:10.3762/bjnano.10.94

• cell design and fabrication, Dr. Jane Frommer for her help with proofreading, Dr. Charles Rettner for gas line connections to the glove box, and Dr. Mark Hart for his contributions to the glove box enhancements which made these experiments possible. The authors would also like to acknowledge Dr. Spike

Mo-doped boron nitride monolayer as a promising single-atom electrocatalyst for CO₂ conversion

• Qianyi Cui,
• Gangqiang Qin,
• Weihua Wang,
• Lixiang Sun,
• Aijun Du and
• Qiao Sun

Beilstein J. Nanotechnol. 2019, 10, 540–548, doi:10.3762/bjnano.10.55

• surface of the Mo-doped BN monolayer is −0.45 V. A less negative value corresponds to a lower energy input. Moreover, the Gibbs free energy diagram of the HER on the surface of the Mo-doped BN monolayer is shown in Figure S2 in Supporting Information File 1. We clearly see that the limiting potential of

• CRR and HER on the Mo-doped BN is −0.45 V and −0.62 V, respectively. Therefore, we can draw the conclusion that the CRR is predominant on the catalyst due to its relatively low energy demand. The limiting potential is relatively low among most of the catalysts to selectively produce CH4 for CRR with

Thermal control of the defunctionalization of supported Au₂₅(glutathione)₁₈ catalysts for benzyl alcohol oxidation

• Zahraa Shahin,
• Hyewon Ji,
• Rodica Chiriac,
• Nadine Essayem,
• Franck Rataboul and
• Aude Demessence

Beilstein J. Nanotechnol. 2019, 10, 228–237, doi:10.3762/bjnano.10.21

• acknowledge Lyon 1 University for her Ph.D. grant.

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

• 16: Additional experimental data. Acknowledgements We thank A. Vasileva (Saint-Petersburg State University) for her support with laser deposition and Prof. K. Mayrhofer (Helmholtz Institute Erlangen-Nürnberg for Renewable Energy) for the use of the X-ray photoelectron spectrometer. This work was

Scanning probe microscopy for energy-related materials

• Rüdiger Berger,
• Benjamin Grévin,
• Philippe Leclère and
• Yi Zhang

Beilstein J. Nanotechnol. 2019, 10, 132–134, doi:10.3762/bjnano.10.12

• contribution to the advancement of the field of understanding energy materials on the nanometer scale. In addition, we acknowledge the expertise of the reviewers who provided helpful reports to us and the authors. Finally, we acknowledge the valuable support of Wendy Patterson and her team working for the

Amorphous Ni_xCo_yP-supported TiO₂ nanotube arrays as an efficient hydrogen evolution reaction electrocatalyst in acidic solution

• Yong Li,
• Peng Yang,
• Bin Wang and
• Zhongqing Liu

Beilstein J. Nanotechnol. 2019, 10, 62–70, doi:10.3762/bjnano.10.6

• , which is an improvment of 79% over that of 1.07 V at 10 mA cm−2. Keywords: electrocatalysis; electrodeposition; HER; NiCoP bimetallic phosphides; Introduction Significant research efforts have been invested in the electrochemical splitting of water using renewable energy to attempt to overcome the

• growing energy demands and associated environmental crisis [1][2][3]. In water splitting, the hydrogen evolution reaction (HER) is a fundamentally important process. This process involves the reduction of protons to form dihydrogen (2H+ + 2e → H2) with a thermodynamic potential of 0 V vs SHE. A major

• bottleneck for HER is the high overpotential associated with the process that takes place at a significant rate due to the high activation barrier and the sluggish multiple-proton-coupled electron transfer [4][5][6]. Noble metal Pt-based catalysts are widely used for HER to circumvent the overpotential

Bidirectional biomimetic flow sensing with antiparallel and curved artificial hair sensors

• Claudio Abels,
• Antonio Qualtieri,
• Toni Lober,
• Alessandro Mariotti,
• Lily D. Chambers,
• Massimo De Vittorio,
• William M. Megill and
• Francesco Rizzi

Beilstein J. Nanotechnol. 2019, 10, 32–46, doi:10.3762/bjnano.10.4

• Applied Sciences Kaiserslautern for her help with experimental measurements. We owe gratitude to Friedrich Muhs from Rhine-Waal University of Applied Sciences for his data acquisition improvements and Prof. Giovanni Lombardi from University of Pisa for his invaluable suggestions on fluid dynamics. Claudio

Thickness-dependent photoelectrochemical properties of a semitransparent Co₃O₄ photocathode

• Malkeshkumar Patel and
• Joondong Kim

Beilstein J. Nanotechnol. 2018, 9, 2432–2442, doi:10.3762/bjnano.9.228

• ) [25][26] and the hydrogen evolution reaction (HER) [20][27] to prove its outstanding stability [28] for the use in water-splitting applications. It therefore may be applied as a protective heterojunction layer to overcome the typical overpotential in photoactive materials. Examples of materials used

• favourable HER properties [20]. We also developed compact Co3O4 films by a reactive sputtering method, in which sputtered Co particles were converted into a compact Co3O4 film by controlling the flowing O2 gas, to offer a self-powered ultraviolet photodetector [17] and semitransparent photovoltaics [39]. It

• electrode was swept from 1.5 to −0.3 V vs RHE in a 0.1 M NaOH electrolyte (pH 12.5). The thickness-dependent linear sweep voltammogram (LSV) of the PEC cell under chopped light illumination is shown in Figure 2d. These results provide an overview of the photoinduced OER at 1.23 V vs RHE, the HER at 0 V vs

Metal-free catalysis based on nitrogen-doped carbon nanomaterials: a photoelectron spectroscopy point of view

• Mattia Scardamaglia and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2018, 9, 2015–2031, doi:10.3762/bjnano.9.191

• splitting of water to molecular hydrogen via hydrogen and oxygen evolution reaction (HER and OER, respectively) are fundamental working mechanisms at the cathode of fuel cells, metal–air batteries and dye-sensitized solar cells [2]. However, the current working catalysts are based on expensive metals, such

Improving the catalytic activity for hydrogen evolution of monolayered SnSe_2(1−x)S_2x by mechanical strain

• Sha Dong and
• Zhiguo Wang

Beilstein J. Nanotechnol. 2018, 9, 1820–1827, doi:10.3762/bjnano.9.173

• direct approach to improve the catalytic activity for the hydrogen evolution reaction (HER) on the basal plane of the SnSe2(1−x)S2x monolayer. SnSeS and SnSe0.5S1.5 monolayers showed the best catalytic activity for HER at a tensile strain of 10%. This work provides a design for improved catalytic

• electrolysis is a clean and “green” approach [3][4][5][6][7]. Efficient electrocatalysts for the hydrogen evolution reaction (HER) with high conversion efficiency are essential for the continuous generation of hydrogen. The platinum (Pt) group materials are regarded as the best electrocatalysts for HER

• hydrogen. Two-dimensional (2D) atomic layer thin materials, such as monolayer transition-metal dichalcogenides (TMDs) [11][12][13][14][15][16][17][18][19], have demonstrated many fascinating properties, including the substitution of Pt as an electrocatalyst for HER. 2D MoS2 has been widely studied

Surface characterization of nanoparticles using near-field light scattering

• Eunsoo Yoo,
• Yizhong Liu,
• Chukwuazam A. Nwasike,
• Sebastian R. Freeman,
• Brian C. DiPaolo,
• Bernardo Cordovez and
• Amber L. Doiron

Beilstein J. Nanotechnol. 2018, 9, 1228–1238, doi:10.3762/bjnano.9.114

• . Acknowledgements Funding for this work was provided by the NIH (1R21EB017504-01) and the Analytics and Diagnostics Laboratory at Binghamton University. We would like to thank Abbey Weith for her assistance with nanophotonic force microscopy experiments and initial data gathering.

Perfusion double-channel micropipette probes for oxygen flux mapping with single-cell resolution

• Yang Gao,
• Bin Li,
• Riju Singhal,
• Adam Fontecchio,
• Ben Pelleg,
• Zulfiya Orynbayeva,
• Yury Gogotsi and
• Gary Friedman

Beilstein J. Nanotechnol. 2018, 9, 850–860, doi:10.3762/bjnano.9.79

• appreciated. The authors would like to acknowledge the use of the Core Facilities in the College of Engineering at Drexel University, and Mr. Edward Basgall for training and assistance with acquiring SEM images. The authors thank Dr. Alyssa Bellingham for her help with experiments.

Fabrication and photoactivity of ionic liquid–TiO₂ structures for efficient visible-light-induced photocatalytic decomposition of organic pollutants in aqueous phase

• Anna Gołąbiewska,
• Marta Paszkiewicz-Gawron,
• Aleksandra Sadzińska,
• Wojciech Lisowski,
• Ewelina Grabowska,
• Adriana Zaleska-Medynska and
• Justyna Łuczak

Beilstein J. Nanotechnol. 2018, 9, 580–590, doi:10.3762/bjnano.9.54

• interactions with TiO2 particles in ionic liquid assisted hydrothermal synthesis”, contract No.2014/15/D/ST5/02747. The authors also acknowledge Karina Kacperska for her support.

Green synthesis of fluorescent carbon dots from spices for in vitro imaging and tumour cell growth inhibition

• Nagamalai Vasimalai,
• Vânia Vilas-Boas,
• Juan Gallo,
• María de Fátima Cerqueira,
• Mario Menéndez-Miranda,
• José Manuel Costa-Fernández,
• Lorena Diéguez,
• Begoña Espiña and
• María Teresa Fernández-Argüelles

Beilstein J. Nanotechnol. 2018, 9, 530–544, doi:10.3762/bjnano.9.51

• Ciência e Tecnologia (FCT) for her PhD grant SFRH/BD/82556/2011.

Ab initio study of adsorption and diffusion of lithium on transition metal dichalcogenide monolayers

• Xiaoli Sun and
• Zhiguo Wang

Beilstein J. Nanotechnol. 2017, 8, 2711–2718, doi:10.3762/bjnano.8.270

• structure can also affect the energy conversion efficiency, for example in the hydrogen evolution reaction (HER). The basal plane of 2H-MoS2 is inert [30], where that of 1T'-MoS2 is catalytically active for HER [31]. Until now, there is no systematic study on the family of transition metal dichalcogenide

Identifying the nature of surface chemical modification for directed self-assembly of block copolymers

• Laura Evangelio,
• Federico Gramazio,
• Matteo Lorenzoni,
• Michaela Gorgoi,
• Francisco Miguel Espinosa,
• Ricardo García,
• Francesc Pérez-Murano and
• Jordi Fraxedas

Beilstein J. Nanotechnol. 2017, 8, 1972–1981, doi:10.3762/bjnano.8.198

• CERCA Programme (Generalitat de Catalunya). Ricardo García acknowledges financial support from MAT2013-4458-R. Laura Evangelio acknowledges the Ministry of Education of Spain for her FPU grant (FPU 13/03746). We thank HZB for the allocation of synchrotron radiation beam time. Thanks are due to Dr

Surface functionalization of 3D-printed plastics via initiated chemical vapor deposition

• Christine Cheng and
• Malancha Gupta

Beilstein J. Nanotechnol. 2017, 8, 1629–1636, doi:10.3762/bjnano.8.162

• under Award No. 1332394. The authors thank June Park for her assistance.

Deposition of exchange-coupled dinickel complexes on gold substrates utilizing ambidentate mercapto-carboxylato ligands

• Martin Börner,
• Laura Blömer,
• Marcus Kischel,
• Peter Richter,
• Georgeta Salvan,
• Dietrich R. T. Zahn,
• Pablo F. Siles,
• Maria E. N. Fuentes,
• Carlos C. B. Bufon,
• Daniel Grimm,
• Oliver G. Schmidt,
• Daniel Breite,
• Bernd Abel and
• Berthold Kersting

Beilstein J. Nanotechnol. 2017, 8, 1375–1387, doi:10.3762/bjnano.8.139

• molecular spintronics”) and the University of Leipzig for general support. We thank Prof. Dr. H. Krautscheid for providing facilities for X-ray crystallographic measurements and L. J. Endter for her assistance in the synthesis of the organic compounds.

Synthesis of [Fe(L_eq)(L_ax)]_n coordination polymer nanoparticles using blockcopolymer micelles

• Christoph Göbel,
• Ottokar Klimm,
• Florian Puchtler,
• Sabine Rosenfeldt,
• Stephan Förster and
• Birgit Weber

Beilstein J. Nanotechnol. 2017, 8, 1318–1327, doi:10.3762/bjnano.8.133

• of Bayreuth and the SFB 840 (TP A10 and B10) is gratefully acknowledged. O.K. was supported by the BayNAT program of the UBT. We thank Juliane Kary for her contribution to the synthesis of the CP and CP–BCP composites.