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Search for "gas adsorption" in Full Text gives 40 result(s) in Beilstein Journal of Nanotechnology.

Electron beam-based direct writing of nanostructures using a palladium β-ketoesterate complex

  • Chinmai Sai Jureddy,
  • Krzysztof Maćkosz,
  • Aleksandra Butrymowicz-Kubiak,
  • Iwona B. Szymańska,
  • Patrik Hoffmann and
  • Ivo Utke

Beilstein J. Nanotechnol. 2025, 16, 530–539, doi:10.3762/bjnano.16.41

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  • using the maximum monolayer coverage n0 = 2.72 nm−2 for the Pd(tbaoac)2 molecule. The gas adsorption rate is νgas = 1.36 × 103 s−1, and the maximum dissociation rate is νdis = 6.16 × 103 s−1. This gives the upper limit on the desorption rate of νdes = 6.07 × 107 s−1. The ratios νdis/νdes = 1.01 × 10−4
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Published 15 Apr 2025

A review of metal-organic frameworks and polymers in mixed matrix membranes for CO2 capture

  • Charlotte Skjold Qvist Christensen,
  • Nicholas Hansen,
  • Mahboubeh Motadayen,
  • Nina Lock,
  • Martin Lahn Henriksen and
  • Jonathan Quinson

Beilstein J. Nanotechnol. 2025, 16, 155–186, doi:10.3762/bjnano.16.14

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  • of their outstanding gas adsorption capabilities [30][45]. The topic of MOF-based gas separation and CO2 capture has been extensively addressed in comprehensive reviews [26][46][47][48][49]. A succinct account of MOF development for CO2 capture is proposed in the next paragraphs to better understand
  • exceptional gas adsorption capabilities. Furthermore, MOFs are inherently more compatible with the organic polymer matrix than regular inorganic fillers, as they have organic linkers as a fundamental structural component. Specifically, utilizing a linker with similar chemistry to the membrane polymer and its
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Published 12 Feb 2025

Modeling and simulation of carbon-nanocomposite-based gas sensors

  • Roopa Hegde,
  • Punya Prabha V,
  • Shipra Upadhyay and
  • Krishna S B

Beilstein J. Nanotechnol. 2025, 16, 90–96, doi:10.3762/bjnano.16.9

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  • showed high sensitivity towards strong electron-withdrawing molecules for NO2 gas detection [10]. To simulate gas adsorption in COMSOL Multiphysics for a gas sensor, several adsorption models can be employed depending on the physical and chemical behavior of the sensor. Commonly used models include the
  • model was initially formulated to characterize gas adsorption on solid-phase adsorbents such as carbon-based adsorbents [13]. The fundamental assumptions of the Langmuir isotherm include: (1) adsorption occurs as a monolayer; (2) adsorption sites are uniformly distributed; (3) the adsorption energy
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Published 30 Jan 2025

A review on the structural characterization of nanomaterials for nano-QSAR models

  • Salvador Moncho,
  • Eva Serrano-Candelas,
  • Jesús Vicente de Julián-Ortiz and
  • Rafael Gozalbes

Beilstein J. Nanotechnol. 2024, 15, 854–866, doi:10.3762/bjnano.15.71

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  • , graphene, and fullerenes. For example, the sum of degrees around the carbon atoms at the surface can be used for all pristine carbon nanoforms [67]. Theoretical calculations of the surface area are more common [68], but it can also be obtained experimentally from gas adsorption data, using the Brunauer
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Published 11 Jul 2024

Metal-organic framework-based nanomaterials for CO2 storage: A review

  • Ha Huu Do,
  • Iqra Rabani and
  • Hai Bang Truong

Beilstein J. Nanotechnol. 2023, 14, 964–970, doi:10.3762/bjnano.14.79

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  • effective method to predict the gas adsorption ability of porous materials. For instance, Tao et al. used the GCMC method to evaluate CO2 adsorption on various materials, including MOF-5, ZIF-8, and Mg-MOF-74 [42]. The authors found that the computational results were in agreement with experimental
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Published 20 Sep 2023

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

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  • in MOFs can either be quenched or enhanced. Due to their exceptional characteristics, MOFs have found usage in a variety of fields, including sensors, gas adsorption, energy storage, drug delivery, catalysis, water treatment, and bio-medical imaging [89][90][91][92][93][94][95][96][97][98][99][100
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Published 01 Jun 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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  • were successfully synthesized by sequential coupling of CF3-substituted copper, cobalt, and palladium porphyrins on the surface. The assembly of different porphyrin oligomers combines multiple functional properties such as gas adsorption and magnetism in a one-dimensional structure. This approach could
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Published 03 Apr 2023

Morphology-driven gas sensing by fabricated fractals: A review

  • Vishal Kamathe and
  • Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

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  • , the extension of fractals in all three dimensions not only adds to the total number of active adsorption sites but also enhances their density. It is well known that surface gas adsorption and desorption are the rate-determining steps and mostly depend on surface characteristics such as surface area
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Published 09 Nov 2021

Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications

  • Sepand Tehrani Fateh,
  • Lida Moradi,
  • Elmira Kohan,
  • Michael R. Hamblin and
  • Amin Shiralizadeh Dezfuli

Beilstein J. Nanotechnol. 2021, 12, 808–862, doi:10.3762/bjnano.12.64

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Published 11 Aug 2021

Nanogenerator-based self-powered sensors for data collection

  • Yicheng Shao,
  • Maoliang Shen,
  • Yuankai Zhou,
  • Xin Cui,
  • Lijie Li and
  • Yan Zhang

Beilstein J. Nanotechnol. 2021, 12, 680–693, doi:10.3762/bjnano.12.54

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  • prepared the sensitivity of which was 925% [20]. Figure 5f shows the piezoelectric output voltage of In2O3/ZnO NW array exposed to dry air and H2S gas of various concentrations at room temperature. Compared with the gas adsorption reaction of ZnO material, the conversion of In2O3/ZnO to In2S3/ZnO has a
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Published 08 Jul 2021

Unravelling the interfacial interaction in mesoporous SiO2@nickel phyllosilicate/TiO2 core–shell nanostructures for photocatalytic activity

  • Bridget K. Mutuma,
  • Xiluva Mathebula,
  • Isaac Nongwe,
  • Bonakele P. Mtolo,
  • Boitumelo J. Matsoso,
  • Rudolph Erasmus,
  • Zikhona Tetana and
  • Neil J. Coville

Beilstein J. Nanotechnol. 2020, 11, 1834–1846, doi:10.3762/bjnano.11.165

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  • silica in mSiO2@NiPS/TiO2 (Supporting Information File 1, Figure S3). The textural properties of the core–shell nanostructures were evaluated using N2 physisorption analysis. Figure 2a shows that the nitrogen gas adsorption–desorption isotherms of mSiO2 and the mSiO2@NiPS core–shell nanostructure are of
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Published 09 Dec 2020

Gas sorption porosimetry for the evaluation of hard carbons as anodes for Li- and Na-ion batteries

  • Yuko Matsukawa,
  • Fabian Linsenmann,
  • Maximilian A. Plass,
  • George Hasegawa,
  • Katsuro Hayashi and
  • Tim-Patrick Fellinger

Beilstein J. Nanotechnol. 2020, 11, 1217–1229, doi:10.3762/bjnano.11.106

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  • similarity of gas adsorption experiments to the lithium or sodium discharge process suggests that effects in GSP measurements may be correlated with phenomena in the corresponding battery tests [35]. Electrochemical cycling experiments were carried out in ethylene carbonate (EC)/ethyl methyl carbonate (EMC
  • reference electrodes and 1 M NaPF6 (99%, Sigma-Aldrich, Germany) in EC/DEC = 1:1 (v/v) (<20 ppm H2O, BASF, Germany) as electrolyte. The same cut-off potentials and cycling procedure as for the Li-ion cells were used. SEM images of HT carbons: a) HT1, b) HT2, c) HT3, d) HT4, e) HT5 and f) HT6. Gas adsorption
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Published 14 Aug 2020

Improved adsorption and degradation performance by S-doping of (001)-TiO2

  • Xiao-Yu Sun,
  • Xian Zhang,
  • Xiao Sun,
  • Ni-Xian Qian,
  • Min Wang and
  • Yong-Qing Ma

Beilstein J. Nanotechnol. 2019, 10, 2116–2127, doi:10.3762/bjnano.10.206

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  • probed by Fourier-transform infrared (FTIR) spectroscopy (Vertex 80/Hyperion2000, Bruker, Germany). The Brunauer–Emmett–Teller (BET) specific surface areas were calculated based on the N2 adsorption–desorption isotherms measured at 77 K using a gas adsorption apparatus (Autosorb-iQ, Quantachrome
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Published 01 Nov 2019

Processing nanoporous organic polymers in liquid amines

  • Jeehye Byun,
  • Damien Thirion and
  • Cafer T. Yavuz

Beilstein J. Nanotechnol. 2019, 10, 1844–1850, doi:10.3762/bjnano.10.179

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  • such as gas adsorption and storage [2], water purification [3], energy storage [4], and catalysis [5], where the large and permanent voids in nanoporous polymers provide room to accommodate target substrates and guest molecules. A series of nanoporous polymers have been reported, namely covalent
  • gravimetric gas adsorption set-up. Supporting Information File 102: Additional experimental details. Acknowledgements This work was partly supported by an institutional program grant (Project No.: 2E29660) from the Korea Institute of Science and Technology.
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Published 09 Sep 2019

Selective gas detection using Mn3O4/WO3 composites as a sensing layer

  • Yongjiao Sun,
  • Zhichao Yu,
  • Wenda Wang,
  • Pengwei Li,
  • Gang Li,
  • Wendong Zhang,
  • Lin Chen,
  • Serge Zhuivkov and
  • Jie Hu

Beilstein J. Nanotechnol. 2019, 10, 1423–1433, doi:10.3762/bjnano.10.140

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  • significantly impact its response. The gas adsorption and desorption kinetics and the chemical activation of WO3 are closely related to the working temperature [6]. The optimal working temperature for various gases is different due to the redox reaction energy required. This therefore provides the possibility
  • temperature further increases. For the detection of H2S, NH3 and CO for all four sensors, the maximum response values were achieved at 90 °C, 150 °C and 210 °C, respectively. The thermodynamics and kinetics of the gas adsorption and desorption on the surface of WO3 could be responsible for this “increased
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Published 17 Jul 2019

Playing with covalent triazine framework tiles for improved CO2 adsorption properties and catalytic performance

  • Giulia Tuci,
  • Andree Iemhoff,
  • Housseinou Ba,
  • Lapo Luconi,
  • Andrea Rossin,
  • Vasiliki Papaefthimiou,
  • Regina Palkovits,
  • Jens Artz,
  • Cuong Pham-Huu and
  • Giuliano Giambastiani

Beilstein J. Nanotechnol. 2019, 10, 1217–1227, doi:10.3762/bjnano.10.121

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  • -physical and morphological properties of this class of porous organic polymers. In fact, their gas adsorption capacity and their performance in a variety of catalytic transformations can be modulated through an appropriate selection of the building blocks. In this contribution, a set of five CTFs (CTF1–5
  • , consequently, optimize their gas-adsorption capacity. In addition, the control of the chemico-physical properties (i.e., pore-size distribution, specific surface area (SSA) and surface basicity) of the target samples is known to play a fundamental role in the control of their performance (activity and
  • total pore volume up to 1.31 cm3·g−1 (Table 1, entries 1 and 2). Although their structural properties sound promising for gas-adsorption applications, their N content remains moderate. As N content and related surface basicity play a key role in the CO2 adsorption capacity of CTF samples, we have
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Published 12 Jun 2019

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

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  • the presence of the gas molecules. Furthermore, the I–V characteristics and energy band structure of the AGNR sensor are simulated using first principle calculations to investigate the gas adsorption effects on these properties. To ensure the accuracy of the proposed model, the I–V characteristics of
  • ) [29], the carrier concentration including the gas adsorption effect can be formulated for AGNR-FET-based gas sensors. where kB is the Boltzmann constant and T is the temperature. We now have all the information required to calculate the carrier velocity. Finally, based on Equation 7, the carrier
  • exposed to each of these gas molecules and its band structure and I–V characteristic variations before and after gas adsorption are studied; also, the adsorption energy and charge transfer between gas molecules and the AGNR surface are calculated and discussed. In the adsorption process of CO, different
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Published 04 Mar 2019

Graphene-enhanced metal oxide gas sensors at room temperature: a review

  • Dongjin Sun,
  • Yifan Luo,
  • Marc Debliquy and
  • Chao Zhang

Beilstein J. Nanotechnol. 2018, 9, 2832–2844, doi:10.3762/bjnano.9.264

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  • -sensing material. Therefore, further reduction of GO is necessary and the product after reduction is called reduced graphene oxide (rGO). Some oxygen functional groups remain after the reduction, some defects and vacancies are generated during the reduction, which are beneficial for the gas adsorption [13
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Published 09 Nov 2018

Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

  • Muhammad Imran,
  • Nunzio Motta and
  • Mahnaz Shafiei

Beilstein J. Nanotechnol. 2018, 9, 2128–2170, doi:10.3762/bjnano.9.202

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  • due to gas adsorption or desorption, the resistance of the sensing layer changes. To date, many types of nanomaterials in different structures have been synthesized and employed in conductometric devices for gas sensing applications [12][34][92]. 4.1.1 Pure semiconducting metal oxides: Several types
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Published 13 Aug 2018

SO2 gas adsorption on carbon nanomaterials: a comparative study

  • Deepu J. Babu,
  • Divya Puthusseri,
  • Frank G. Kühl,
  • Sherif Okeil,
  • Michael Bruns,
  • Manfred Hampe and
  • Jörg J. Schneider

Beilstein J. Nanotechnol. 2018, 9, 1782–1792, doi:10.3762/bjnano.9.169

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  • shown that the oxygen functionalities present on GO are in the form of hydroxy and carboxy groups [12]. The tunability of the material in terms of porosity and extent of functionalization makes GO a prototype of a hydrophilic carbon adsorbent and as such interesting for studying gas adsorption in 2D
  • –mesopores and are interesting for gas adsorption applications as they can be produced in large quantities with high purity [25][26]. CNTs have a well-defined structure as well and can be envisioned as a seamlessly rolled up graphene sheet. Since in a SWNT, the inside and the outside surfaces are available
  • curvature effects [28][29]. The presence of these multiple well-defined and reproducible adsorption sites makes VACNTs an ideal model structure for investigating and understanding gas adsorption in one-dimensional carbon materials. In our previous works, we have shown the successful application of VACNTs as
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Published 13 Jun 2018

Modelling focused electron beam induced deposition beyond Langmuir adsorption

  • Dédalo Sanz-Hernández and
  • Amalio Fernández-Pacheco

Beilstein J. Nanotechnol. 2017, 8, 2151–2161, doi:10.3762/bjnano.8.214

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  • of the system. Here we define vGAS, the frequency for gas adsorption: v1 as the frequency of gas desorption for the first monolayer (in contact with the substrate): v2 as the frequency of gas desorption for upper monolayers (i ≥ 2): And ve as the frequency of dissociation of adsorbed precursor Table
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Published 13 Oct 2017

Hierarchically structured nanoporous carbon tubes for high pressure carbon dioxide adsorption

  • Julia Patzsch,
  • Deepu J. Babu and
  • Jörg J. Schneider

Beilstein J. Nanotechnol. 2017, 8, 1135–1144, doi:10.3762/bjnano.8.115

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  • tubes. Keywords: carbon dioxide adsorption; carbon tubes; gas adsorption; mesoporous carbon; Introduction Nanostructured carbon and silicon carbide materials have numerous potential applications. Structured carbons such as graphene, carbon nanotubes, carbon fibres or hierarchical porous carbons were
  • successfully tested as potential material for catalysis [1], gas sensors [2], electronic devices [3] and for gas adsorption [4]. Activated carbons (ACs) are widely used for gas adsorption because of their straightforward production, low cost and thermal stability [5][6][7]. Nevertheless, the excellent
  • adsorption characteristics of ACs are often outweighed by their irregular and undefined pore structure. As a consequence, the gas adsorption process is complex and a multistep regeneration process is needed to complete the outgassing of the adsorbed gases. To counter this problem, two fundamental methods are
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Published 24 May 2017

CVD transfer-free graphene for sensing applications

  • Chiara Schiattarella,
  • Sten Vollebregt,
  • Tiziana Polichetti,
  • Brigida Alfano,
  • Ettore Massera,
  • Maria Lucia Miglietta,
  • Girolamo Di Francia and
  • Pasqualina Maria Sarro

Beilstein J. Nanotechnol. 2017, 8, 1015–1022, doi:10.3762/bjnano.8.102

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  • the interaction energy and the degree of adsorption of NO2 and NH3 at room temperature employing a simple descriptive model, the results of which are coherent with those reported in other theoretical works related to gas-adsorption processes on graphene. The recovery time for these devices is
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Published 08 May 2017

Graphene functionalised by laser-ablated V2O5 for a highly sensitive NH3 sensor

  • Margus Kodu,
  • Artjom Berholts,
  • Tauno Kahro,
  • Mati Kook,
  • Peeter Ritslaid,
  • Helina Seemen,
  • Tea Avarmaa,
  • Harry Alles and
  • Raivo Jaaniso

Beilstein J. Nanotechnol. 2017, 8, 571–578, doi:10.3762/bjnano.8.61

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  • response time, sensitivity and reversibility were essentially enhanced due to graphene functionalisation by laser deposited V2O5. This can be explained by an increased surface density of gas adsorption sites introduced by high energy atoms in laser ablation plasma and formation of nanophase boundaries
  • precious metal [4] or metal oxide nanoparticles [5]. Also, introduction of suitable defects was shown to have a positive effect on gas adsorption and sensor properties of graphene [6]. Transition metal oxides constitute an important class of catalysts and photosensitizers. Apart from the very first and
  • drastically increase both the adsorption of pollutant molecules and the influence of gas adsorption on the electronic properties of graphene [6][30]. For instance, adsorption energy (Ea) of an NH3 molecule on regular graphene is relatively small (Ea ≤ 0.11 eV [6][30]), but it is much higher for defect (up to
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Published 07 Mar 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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  • in Figure 8, assuming that the resistance changes are related only to the gas adsorption, is based on the fact that the experimental Tmax is much smaller than the theoretically predicted Teq. At these relatively low temperatures water desorption is believed to predominate over oxygen adsorption
  • an n–n heterojunction, b) electron transfer from a TiO2 to a SnO2 grain providing active gas adsorption sites. EF: Fermi energy, EVB: valence band maximum energy, ECB: conduction band minimum energy, Eg: energy band gap, e−: electron, O−: singly ionized oxygen adatom. Comparison between XRD patterns
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Published 12 Jan 2017
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