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Search for "HER" in Full Text gives 68 result(s) in Beilstein Journal of Nanotechnology.

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

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  • 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
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Published 24 Apr 2019

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

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  • 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
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Published 22 Feb 2019

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

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  • acknowledge Lyon 1 University for her Ph.D. grant.
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Published 18 Jan 2019

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

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  • 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
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Published 11 Jan 2019

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

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  • 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
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Published 10 Jan 2019

Amorphous NixCoyP-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

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  • , 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
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Published 07 Jan 2019

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

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  • 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
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Published 03 Jan 2019

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

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  • ) [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
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Published 12 Sep 2018

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

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  • 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
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Published 18 Jul 2018

Improving the catalytic activity for hydrogen evolution of monolayered SnSe2(1−x)S2x by mechanical strain

  • Sha Dong and
  • Zhiguo Wang

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

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  • 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
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Published 18 Jun 2018

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

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  • . 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.
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Published 18 Apr 2018

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

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  • 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.
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Published 09 Mar 2018

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

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  • 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.
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Published 14 Feb 2018

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

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  • Ciência e Tecnologia (FCT) for her PhD grant SFRH/BD/82556/2011.
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Published 13 Feb 2018

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

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  • 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
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Published 15 Dec 2017

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

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  • 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
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Published 21 Sep 2017

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

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  • under Award No. 1332394. The authors thank June Park for her assistance.
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Published 08 Aug 2017

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

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  • 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.
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Published 05 Jul 2017

Synthesis of [Fe(Leq)(Lax)]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

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  • 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.
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Published 26 Jun 2017

Growth, structure and stability of sputter-deposited MoS2 thin films

  • Reinhard Kaindl,
  • Bernhard C. Bayer,
  • Roland Resel,
  • Thomas Müller,
  • Viera Skakalova,
  • Gerlinde Habler,
  • Rainer Abart,
  • Alexey S. Cherevan,
  • Dominik Eder,
  • Maxime Blatter,
  • Fabian Fischer,
  • Jannik C. Meyer,
  • Dmitry K. Polyushkin and
  • Wolfgang Waldhauser

Beilstein J. Nanotechnol. 2017, 8, 1115–1126, doi:10.3762/bjnano.8.113

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  • electrochemical processes such as the hydrogen evolution reaction (HER) in electrochemical water splitting. For both types of applications, industrially scalable fabrication methods with good control over the MoS2 film properties are crucial. Here, we investigate scalable physical vapour deposition (PVD) of MoS2
  • measurements suggest directions for future work on our PVD MoS2 films. Keywords: electrode; hydrogen evolution reaction (HER); magnetron sputter deposition; MoS2; reticulated vitreous carbon (RVC) foam; SiO2/Si substrate; Introduction Molybdenum disulphide (MoS2) is a layered chemical compound comprised of
  • noble metal-free catalytic material for the hydrogen evolution reaction (HER) in electrochemical water splitting, which is fundamental to a hydrogen-based energy economy [14]. Density function theory showed the feasibility of MoS2 supported on graphite to catalyse electrochemical hydrogen evolution at a
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Published 22 May 2017

Bio-inspired micro-to-nanoporous polymers with tunable stiffness

  • Julia Syurik,
  • Ruth Schwaiger,
  • Prerna Sudera,
  • Stephan Weyand,
  • Siegbert Johnsen,
  • Gabriele Wiegand and
  • Hendrik Hölscher

Beilstein J. Nanotechnol. 2017, 8, 906–914, doi:10.3762/bjnano.8.92

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  • her great help in trimming the samples, Paul Abaffy for reliably great SEM pictures, Wolfgang Arbogast for performing SEC and his help to interpret the results, Marc Schneider for helpful advises and support. J.S. acknowledges funding from the Helmholtz Association (Grant-No. PD-157). This work was
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Published 21 Apr 2017

Methods for preparing polymer-decorated single exchange-biased magnetic nanoparticles for application in flexible polymer-based films

  • Laurence Ourry,
  • Delphine Toulemon,
  • Souad Ammar and
  • Fayna Mammeri

Beilstein J. Nanotechnol. 2017, 8, 408–417, doi:10.3762/bjnano.8.43

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  • -determined atomic composition of as-prepared CoxFe3−xO4-CoO nanoparticles (ENP) and PS-based hybrids. Acknowledgements The authors would like to thank Dr. Thomas Gaudisson (who designed the CoxFe3−xO4@CoO ENPs) and Dr. John Lomas for fruitful discussions, Ms. Smina Hammaz for her technical support on
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Published 09 Feb 2017

Nanocrystalline TiO2/SnO2 heterostructures for gas sensing

  • Barbara Lyson-Sypien,
  • Anna Kusior,
  • Mieczylaw Rekas,
  • Jan Zukrowski,
  • Marta Gajewska,
  • Katarzyna Michalow-Mauke,
  • Thomas Graule,
  • Marta Radecka and
  • Katarzyna Zakrzewska

Beilstein J. Nanotechnol. 2017, 8, 108–122, doi:10.3762/bjnano.8.12

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  • : specific surface area. Theoretical and experimental results of power law analysis. Acknowledgements This work has been financed by the National Science Centre, Poland grant decision DEC-2011/03/B/ST7/01840. M Radecka has performed her research within National Science Centre, Poland project DEC-2012/07/B
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Published 12 Jan 2017

Influence of hydrothermal synthesis parameters on the properties of hydroxyapatite nanoparticles

  • Sylwia Kuśnieruk,
  • Jacek Wojnarowicz,
  • Agnieszka Chodara,
  • Tadeusz Chudoba,
  • Stanislaw Gierlotka and
  • Witold Lojkowski

Beilstein J. Nanotechnol. 2016, 7, 1586–1601, doi:10.3762/bjnano.7.153

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  • bones contains very few hydroxyl groups. Among the examples of natural apatites given, only the apatite present in tooth enamel contains less carbonates and a higher concentration of hydroxyl ions [49]. In her work, Sharon Kehoe [50] draws attention to the importance of atmospheric environment. She
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Published 04 Nov 2016

Direct formation of gold nanorods on surfaces using polymer-immobilised gold seeds

  • Majid K. Abyaneh,
  • Pietro Parisse and
  • Loredana Casalis

Beilstein J. Nanotechnol. 2016, 7, 809–816, doi:10.3762/bjnano.7.72

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  • ) high Mw PMMA with 60 wt % Au salt concentration (P2-60). Set-up for UV exposure on the samples using a deuterium UV lamp with diverted beam set-up using an UV-enhanced aluminium flat mirror. Acknowledgements MKA would like to thanks Ms. Katie Cunnea from Research complex at Harwell (RCaH) for her
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Published 06 Jun 2016
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