Properties of tin oxide films grown by atomic layer deposition from tin tetraiodide and ozone

• Kristjan Kalam,
• Peeter Ritslaid,
• Tanel Käämbre,
• Aile Tamm and
• Kaupo Kukli

Beilstein J. Nanotechnol. 2023, 14, 1085–1092, doi:10.3762/bjnano.14.89

• peak at the binding energy typical of surface OH (Figure 10b). This might be related to the chemisorption and decomposition of environmental humidity, enhanced on more crystallised film surfaces. Such a surface OH contribution has been described earlier [33][34]. Complementarily, the valence-band

Humidity-dependent electrical performance of CuO nanowire networks studied by electrochemical impedance spectroscopy

• Jelena Kosmaca,
• Juris Katkevics,
• Jana Andzane,
• Raitis Sondors,
• Liga Jasulaneca,
• Raimonds Meija,
• Kiryl Niherysh,
• Yelyzaveta Rublova and
• Donats Erts

Beilstein J. Nanotechnol. 2023, 14, 683–691, doi:10.3762/bjnano.14.54

• chemisorption and physisorption at the nanowire interface, which suppress electronic transport inside the p-type semiconductor nanowire but enhance ionic transport in the water layers adsorbed on the nanowire surface. Possible physicochemical processes at the nanowire surface are discussed in line with

• , which was explained by water chemisorption on the nanowire surface [6][13][18][19]. Nevertheless, for single nanowires assembled on electrodes by dielectrophoresis (DEP), the opposite response to humidity was observed [21]. Besides, unusual responses to humidity were shown for nanowires of other

• contribution from resistance, capacitance, constant phase element, and Warburg element to the total impedance at various RH. Physical models describing the impact of chemisorption and physisorption processes are proposed to clarify the observed changes in the impedance spectra, discuss gas sensing mechanisms

Self-assembly of C₆₀ on a ZnTPP/Fe(001)–p(1 × 1)O substrate: observation of a quasi-freestanding C₆₀ monolayer

• Guglielmo Albani,
• Michele Capra,
• Alessandro Lodesani,
• Alberto Calloni,
• Gianlorenzo Bussetti,
• Marco Finazzi,
• Franco Ciccacci,
• Alberto Brambilla,
• Lamberto Duò and
• Andrea Picone

Beilstein J. Nanotechnol. 2022, 13, 857–864, doi:10.3762/bjnano.13.76

• relevant charge transfer between the overlayer and the substrate occurs. In contrast, a low Ea is characteristic of physisorbed molecules, for which the adsorption is mediated by the weak van der Waals interaction with the substrate. Chemisorption is the typical scenario for molecules stabilized on

A comprehensive review on electrospun nanohybrid membranes for wastewater treatment

• Senuri Kumarage,
• Imalka Munaweera and
• Nilwala Kottegoda

Beilstein J. Nanotechnol. 2022, 13, 137–159, doi:10.3762/bjnano.13.10

• . Adsorption membranes decontaminate wastewater by adsorbing the impurities via chemisorption or physisorption. Polymeric membranes have functional groups that can interact with the solutes. In chemisorption, an irreversible chemical bond is formed between the adsorbate and the adsorbent, whereas in

Irradiation-driven molecular dynamics simulation of the FEBID process for Pt(PF₃)₄

• Alexey Prosvetov,
• Alexey V. Verkhovtsev,
• Gennady Sushko and
• Andrey V. Solov’yov

Beilstein J. Nanotechnol. 2021, 12, 1151–1172, doi:10.3762/bjnano.12.86

Molecular assemblies on surfaces: towards physical and electronic decoupling of organic molecules

• Sabine Maier and
• Meike Stöhr

Beilstein J. Nanotechnol. 2021, 12, 950–956, doi:10.3762/bjnano.12.71

• dielectric layers on top of the surface [34][35] or a chemical modification of the surface to saturate the dangling bonds. In surface-science-based studies, for the latter approach hydrogenation of semiconductor surfaces is frequently applied as effective passivation against chemisorption of adsorbates [36

A review of defect engineering, ion implantation, and nanofabrication using the helium ion microscope

• Frances I. Allen

Beilstein J. Nanotechnol. 2021, 12, 633–664, doi:10.3762/bjnano.12.52

• -induced defects for each dose level was inferred. At lower doses, a redshift in disorder-related photoluminesce peaks was observed, attributed to chemisorption at monosulfur vacancies, whereas for doses higher than 1014 ions/cm2, a strong reduction in all photoluminescence peaks occurred, corresponding to

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

• , because it has only a few functional groups on its surface, which limits the chemisorption of gas molecules [28]. Graphene oxide (graphite oxide, GO), in contrast, has numerous oxygen functionalities and few remaining π bonds and is therefore electrically insulating [29]. GO can be reduced (reduced

• the conduction band toward the valence band. Processes on the WO3 surface make it possible for the work function of WO3 to lower to a point close to that of rGO [37]. The latter facilitates transfer of electrons at the rGO/WO3 interface. The continuous capture of electrons by chemisorption of NO2

• composite create a hierarchical nanostructure and facilitate the diffusion of NO2 molecules, increasing the contacts and enhancing the chemisorption of the gas. rGO has large specific area and more active sites. Gas sensors of n-type semiconductors based on oxides exhibit resistance changes induced by

Detecting stable adsorbates of (1S)-camphor on Cu(111) with Bayesian optimization

• Jari Järvi,
• Patrick Rinke and
• Milica Todorović

Beilstein J. Nanotechnol. 2020, 11, 1577–1589, doi:10.3762/bjnano.11.140

• indicates chemisorption of camphor via O to the Cu substrate. Conversely, in class Hy structures we observed the characteristics of physisorption. Class Hy structures have systematically lower adsorption energies, energy barriers, and electron transfer to the substrate, and their DOS resembles the HOMO and

• with DFT (ED) and the adsorption energies of the relaxed structures (). (b) Energy barriers (V) for γ rotation (Vγ) and x–y translation (Vxy), in comparison with thermal energy at room temperature. Relaxed stable adsorbate structures of camphor on Cu(111) in the 6D search, showing (a) chemisorption of

Transient coating of γ-Fe₂O₃ nanoparticles with glutamate for its delivery to and removal from brain nerve terminals

• Konstantin Paliienko,
• Artem Pastukhov,
• Michal Babič,
• Daniel Horák,
• Olga Vasylchenko and
• Tatiana Borisova

Beilstein J. Nanotechnol. 2020, 11, 1381–1393, doi:10.3762/bjnano.11.122

• their instability in biological media where the nanoparticles may lose their biological coating [19]. The organic/inorganic agents form a shell (1–5 nm thick) around superparamagnetic iron oxide nanoparticles interacting with their surface functional groups [14]. Sousa et al. studied the chemisorption

• of glutamate and aspartate by chemically modified γ-Fe2O3 nanoparticles. The glutamate and aspartate solutions were prepared in HNO3 at pH 3.0 and under nitrogen flux. The chemisorption was investigated in acidic medium by measuring the changes in the conductivity of the solution during addition of

• the ligands. Raman and FTIR spectroscopy measurements showed that glutamate and aspartate salts were adsorbed at the surface of γ-Fe2O3 nanoparticles [20]. It should be noted that the methodological protocol of above experiments on glutamate and aspartate chemisorption suggested the use of bio

Impact of fluorination on interface energetics and growth of pentacene on Ag(111)

• Qi Wang,
• Meng-Ting Chen,
• Antoni Franco-Cañellas,
• Bin Shen,
• Thomas Geiger,
• Holger F. Bettinger,
• Frank Schreiber,
• Ingo Salzmann,
• Alexander Gerlach and
• Steffen Duhm

Beilstein J. Nanotechnol. 2020, 11, 1361–1370, doi:10.3762/bjnano.11.120

• chemisorption of PEN [28][51] and physisorption of PFP [50]. Multilayers of PEN adopt a herringbone arrangement on virtually all substrates [47][56][57][58][59], whereas PFP multilayers exhibit π-stacking [18][56]. The different multilayer packing motifs of PEN and PFP can again be explained by electrostatic

• of chemisorption [74][75][76][77], pointed to a weak interfacial coupling. Figure 2a shows the UPS data for the valence band region of stepwise deposited F4PEN on Ag(111). For a nominal thickness of 1 Å, two peaks that could be assigned to the HOMO and HOMO−1 levels of F4PEN were visible. The low BE

• that in multilayers [75][85][86][87]. For the specific case of the pentacene derivatives on Ag(111), strong coupling was not observed. However, the interaction of PEN with Ag(111) was termed “soft chemisorption” [51], and by a closer look at the PEN monolayer spectrum in Figure 3a, a faint peak close

Multiwalled carbon nanotube based aromatic volatile organic compound sensor: sensitivity enhancement through 1-hexadecanethiol functionalisation

• Nadra Bohli,
• Meryem Belkilani,
• Juan Casanova-Chafer,
• Eduard Llobet and
• Adnane Abdelghani

Beilstein J. Nanotechnol. 2019, 10, 2364–2373, doi:10.3762/bjnano.10.227

• they are strong covalent (chemisorption) or weak (physisorption), highly impact the sensor performance, that is, the sensitivity, response and recovery time, and detection range. Unlike metal-oxide-based gas sensors, CNT-based sensors operate at room temperature (low activation energy) and can

The role of Ag⁺, Ca²⁺, Pb²⁺ and Al³⁺ adions in the SERS turn-on effect of anionic analytes

• Stefania D. Iancu,
• Andrei Stefancu,
• Vlad Moisoiu,
• Loredana F. Leopold and
• Nicolae Leopold

Beilstein J. Nanotechnol. 2019, 10, 2338–2345, doi:10.3762/bjnano.10.224

• uric acid, salicylic acid and fumaric acid could be recorded at a concentration of 50 µM only after activation of the colloidal silver nanoparticles by Ca2+, Pb2+ or Al3+ (50 µM). The chemisorption of the three anionic species to the silver surface occurs competitively and is enhanced with the anions

• AgNPs were immobilized on a glass surface [12]. Recently, we brought further evidence for the role of the Cl− adion in the SERS detection of cationic molecules, showing that Cl− (but also Br− or I−) adions promote the chemisorption of cationic dyes to the silver surface leading to the turn-on of the

• SERS effect for cationic molecules [13][14]. Moreover, we showed in our studies that Ag+, Ca2+ or Mg2+ adions promote the chemisorption of Cl−, thus forming specific SERS-active sites for cationic molecules such as rhodamine 6G at 10−11 M or nile blue at 10−8 M. In this low-concentration regime, we

Adsorption and desorption of self-assembled L-cysteine monolayers on nanoporous gold monitored by in situ resistometry

• Elisabeth Hengge,
• Eva-Maria Steyskal,
• Rupert Bachler,
• Alexander Dennig,
• Bernd Nidetzky and
• Roland Würschum

Beilstein J. Nanotechnol. 2019, 10, 2275–2279, doi:10.3762/bjnano.10.219

• process on planar gold, whereas regime (II) exhibits a behavior unique for nanoporous gold. The steep regime (I) yields an increase of about 4% in about 50 min, which is assigned to cysteine molecules being chemisorbed on the easily accessible outer surfaces. This chemisorption has been reported in the

• ) after cysteine adding (grey arrow). This delay is attributed to a physisorption step prior to chemisorption (reported to take few minutes for planar Au [13]), which does not significantly change the electronic structure and thus the resistance of the substrate. Since SAMs are known to decrease the

Kelvin probe force microscopy work function characterization of transition metal oxide crystals under ongoing reduction and oxidation

• Dominik Wrana,
• Karol Cieślik,
• Wojciech Belza,
• Christian Rodenbücher,
• Krzysztof Szot and
• Franciszek Krok

Beilstein J. Nanotechnol. 2019, 10, 1596–1607, doi:10.3762/bjnano.10.155

• the interacting gases. It suggests the chemisorption of H2O and CO2 and dissociation of their products, stemming from the high catalytic activity of the TiO phase. To wrap up our experimental findings of the KPFM study of TiO and SrTiO3(100) crystals, a comparison between the obtained work functions

Growth of lithium hydride thin films from solutions: Towards solution atomic layer deposition of lithiated films

• Ivan Kundrata,
• Karol Fröhlich,
• Lubomír Vančo,
• Matej Mičušík and
• Julien Bachmann

Beilstein J. Nanotechnol. 2019, 10, 1443–1451, doi:10.3762/bjnano.10.142

• -dissociative chemisorption of the precursor onto the surface. Chemical identity The presence of LiH revealed through XRD needs to be confirmed by chemical analysis methods. Unambiguous analyses are rendered impossible by the air-sensitive nature of the deposit and the difficulty to identify the elements Li and

Gas sensing properties of individual SnO₂ nanowires and SnO₂ sol–gel nanocomposites

• Alexey V. Shaposhnik,
• Dmitry A. Shaposhnik,
• Sergey Yu. Turishchev,
• Olga A. Chuvenkova,
• Stanislav V. Ryabtsev,
• Alexey A. Vasiliev,
• Xavier Vilanova,
• Francisco Hernandez-Ramirez and
• Joan R. Morante

Beilstein J. Nanotechnol. 2019, 10, 1380–1390, doi:10.3762/bjnano.10.136

• chemisorption. The coefficient b of the power-law function also plays an important role, indicating the possibility of saturation at a high concentration of the test gas. In the sensors made by the sol–gel method, the coefficient b is much higher; such sensors therefore tend to saturate more easily. This

Synthesis of MnO₂–CuO–Fe₂O₃/CNTs catalysts: low-temperature SCR activity and formation mechanism

• Yanbing Zhang,
• Lihua Liu,
• Yingzan Chen,
• Xianglong Cheng,
• Chengjian Song,
• Mingjie Ding and
• Haipeng Zhao

Beilstein J. Nanotechnol. 2019, 10, 848–855, doi:10.3762/bjnano.10.85

• reducibility is lower compared with that of 4% MnO2–CuO–Fe2O3/CNTs. Ammonia temperature-programmed desorption analysis The chemisorption and activation of NH3 on the surface acid sites of a catalyst are generally viewed as the primary processes in the SCR of NO. Therefore, ammonia temperature-programmed

Polydopamine-coated Au nanorods for targeted fluorescent cell imaging and photothermal therapy

• Boris N. Khlebtsov,
• Andrey M. Burov,
• Timofey E. Pylaev and
• Nikolai G. Khlebtsov

Beilstein J. Nanotechnol. 2019, 10, 794–803, doi:10.3762/bjnano.10.79

• two cuvettes retain their dark color. It is notable that contrary to the usual physical loading of molecular content into mesoporous silica, the nanocomposites with PDA shell obtained by chemisorption remain stable without dye release during several washing steps and long-term storage. For theranostic

A carrier velocity model for electrical detection of gas molecules

• Ali Hosseingholi Pourasl,
• Sharifah Hafizah Syed Ariffin,
• Mohammad Taghi Ahmadi,
• Razali Ismail and
• Niayesh Gharaei

Beilstein J. Nanotechnol. 2019, 10, 644–653, doi:10.3762/bjnano.10.64

• results show a negative Ea for all gas molecules, which indicates an exothermic reaction between the AGNR and gas molecule according to Table 1. The magnitude of adsorption energy is larger than 1 eV for both NO and CO, indicating strong chemisorption. On the other hand, referring to the Mulliken charge

Hydrophilicity and carbon chain length effects on the gas sensing properties of chemoresistive, self-assembled monolayer carbon nanotube sensors

• Juan Casanova-Cháfer,
• Carla Bittencourt and
• Eduard Llobet

Beilstein J. Nanotechnol. 2019, 10, 565–577, doi:10.3762/bjnano.10.58

• gas sensitive nanomaterial to higher temperatures [3] or to irradiate the sensor employing ultraviolet (UV) light, in order to promote surface cleaning. Despite these efforts, sometimes CNTs present irreversible resistance changes due to the chemisorption of gas molecules. In addition, other problems

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

• [9][11]. This is a widely used, basic criterion for selecting catalyst materials for electrocatalysts in TM-doped BN for the N2 reduction reaction, whereby the criterion is that the catalyst can facilitate the chemisorption of N2 molecules [45]. To screen for promising transition metals to be doped

• . Meanwhile, the CO2 angle is also determined by the strength of the interaction of CO2 with different TMs that anchor on the BN monolayer. The configuration of captured CO2 is significantly distorted by strong chemisorption as illustrated in Figure 1a–c. Regarding the electronic properties, physisorption of

• CO2 results in a positive charge state; however, chemisorption of CO2 results in a negative charge state, because electrons are transferred to the captured CO2 from the TM-doped BN monolayer (Figure 1d). CO2 must be readily captured by the catalyst, and the interaction between CO2 and the catalyst

Removal of toxic heavy metals from river water samples using a porous silica surface modified with a new β-ketoenolic host

• Said Tighadouini,
• Smaail Radi,
• Abderrahman Elidrissi,
• Khadija Haboubi,
• Maryse Bacquet,
• Stéphanie Degoutin,
• Mustapha Zaghrioui and
• Yann Garcia

Beilstein J. Nanotechnol. 2019, 10, 262–273, doi:10.3762/bjnano.10.25

• constant. The kinetic rate constants for the adsorption of Zn(II), Pb(II), Cd(II) and Cu(II) by SiNL were determined by regression analysis (Figure 7). The data were best fitted by the pseudo second-order model (Table 1), which suggests that the adsorption of heavy metals in water proceeds by chemisorption

Hybrid Au@alendronate nanoparticles as dual chemo-photothermal agent for combined cancer treatment

• Anouchka Plan Sangnier,
• Romain Aufaure,
• Laurence Motte,
• Claire Wilhelm,
• Erwann Guenin and
• Yoann Lalatonne

Beilstein J. Nanotechnol. 2018, 9, 2947–2952, doi:10.3762/bjnano.9.273

• estimated values for other NPs coated with HMBP molecules (i.e., 3.4 HMBPene/nm2) [18]. Indeed, alendronate is a zwitterion, capable of forming pairs of ions that generate multilayers around the gold NP. The chemisorption of alendronate was qualitatively assessed (Figure 1c) by Fourier-transform infrared

Disorder in H⁺-irradiated HOPG: effect of impinging energy and dose on Raman D-band splitting and surface topography

• Lisandro Venosta,
• Noelia Bajales,
• Sergio Suárez and
• Paula G. Bercoff

Beilstein J. Nanotechnol. 2018, 9, 2708–2717, doi:10.3762/bjnano.9.253

• dose above which DIM decreases again. They further suggest that DIM in HOPG is most likely not a volume effect, but a surface effect due to hydrogen present at the surface. This could explain why DIM can be triggered with electron irradiation by the formation of hydrogen-chemisorption defects at the