Surface Science Reports最新文献

{"title":"Surface chemistry of carbon dioxide revisited","authors":"William Taifan ,&nbsp;Jean-François Boily ,&nbsp;Jonas Baltrusaitis","doi":"10.1016/j.surfrep.2016.09.001","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.09.001","url":null,"abstract":"<div><p>This review discusses modern developments in CO₂<span> surface chemistry by focusing on the work published since the original review by H.J. Freund and M.W. Roberts two decades ago (Surface Science Reports 25 (1996) 225–273). It includes relevant fundamentals pertaining to the topics covered in that earlier review, such as conventional metal and metal oxide surfaces and CO</span>₂<span> interactions thereon. While UHV spectroscopy has routinely been applied for CO</span>₂ gas–solid interface analysis, the present work goes further by describing surface–CO₂ interactions under elevated CO₂<span> pressure on non-oxide surfaces, such as zeolites<span>, sulfides, carbides<span> and nitrides. Furthermore, it describes additional salient </span></span></span><em>in situ</em> techniques relevant to the resolution of the interfacial chemistry of CO₂<span>, notably infrared spectroscopy and state-of-the-art theoretical methods, currently used in the resolution of solid and soluble carbonate species in liquid–water vapor, liquid–solid and liquid–liquid interfaces. These techniques are directly relevant to fundamental, natural and technological settings, such as heterogeneous and environmental catalysis and CO</span>₂ sequestration.</p></div>","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.09.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2424390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Positrons in surface physics","authors":"Christoph Hugenschmidt","doi":"10.1016/j.surfrep.2016.09.002","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.09.002","url":null,"abstract":"<div><p>Within the last decade powerful methods have been developed to study surfaces using bright low-energy positron<span><span> beams. These novel analysis tools exploit the unique properties of positron interaction with surfaces, which comprise the absence of exchange interaction, repulsive crystal potential and positron trapping in delocalized surface states at low energies. By applying reflection high-energy positron diffraction (RHEPD) one can benefit from the phenomenon of total reflection below a critical angle that is not present in electron surface diffraction. Therefore, RHEPD allows the determination of the atom positions of (reconstructed) surfaces with outstanding accuracy. The main advantages of positron annihilation induced Auger-electron spectroscopy (PAES) are the missing secondary electron background in the energy region of Auger-transitions and its topmost layer sensitivity for </span>elemental analysis<span>. In order to enable the investigation of the electron polarization at surfaces low-energy spin-polarized positrons are used to probe the outermost electrons of the surface. Furthermore, in fundamental research the preparation of well defined surfaces tailored for the production of bound leptonic systems plays an outstanding role. In this report, it is envisaged to cover both the fundamental aspects of positron surface interaction and the present status of surface studies using modern positron beam techniques.</span></span></p></div>","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.09.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3263787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomic scale characterization and surface chemistry of metal modified titanate nanotubes and nanowires","authors":"Ákos Kukovecz ,&nbsp;Krisztián Kordás ,&nbsp;János Kiss ,&nbsp;Zoltán Kónya","doi":"10.1016/j.surfrep.2016.06.001","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.06.001","url":null,"abstract":"<div><p><span><span>Titanates<span> are salts of polytitanic acid that can be synthesized as nanostructures in a great variety concerning </span></span>crystallinity<span>, morphology, size, metal content and surface chemistry. Titanate nanotubes (open-ended hollow cylinders measuring up to 200</span></span> <!-->nm in length and 15<!--> <span>nm in outer diameter) and nanowires (solid, elongated rectangular blocks with length up to 1500</span> <!-->nm and 30–60<!--> <span><span><span>nm diameter) are the most widespread representatives of the titanate nanomaterial family. This review covers the properties and applications of these two materials from the surface science point of view. </span>Dielectric, vibrational, electron and X-ray spectroscopic results are comprehensively discussed first, then surface modification methods including covalent functionalization, ion exchange and metal loading are covered. The versatile surface chemistry of one-dimensional titanates renders them excellent candidates for heterogeneous catalytic, photocatalytic, </span>photovoltaic and energy storage applications, therefore, these fields are also reviewed.</span></p></div>","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.06.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3263788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How to control solid state dewetting: A short review","authors":"F. Leroy ,&nbsp;Ł. Borowik ,&nbsp;F. Cheynis ,&nbsp;Y. Almadori ,&nbsp;S. Curiotto ,&nbsp;M. Trautmann ,&nbsp;J.C. Barbé ,&nbsp;P. Müller","doi":"10.1016/j.surfrep.2016.03.002","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.03.002","url":null,"abstract":"<div><p>In the past decade there have been many theoretical and experimental efforts to study the mechanisms of solid state dewetting, that means the spontaneous agglomeration of a thin solid film on a substrate into an assembly of 3D islands. The dewetting studies of solid films on solid substrates have not yet reached the degree of maturity achieved for liquids but there is now enough experimental data to consider the possibility of a future “dewetting engineering”. By dewetting engineering we mean all the ways to tune and/or control the kinetics of dewetting as well as the morphology of the final dewetted state. The ultimate goal is to avoid dewetting when it complicates the fabrication of thin film-based devices or to use it for the spontaneous production of an assembly of nanoscaled islands on solid substrates.</p><p>For this purpose we review the different parameters that influence the dewetting then illustrate how the dewetted state may be tuned by varying the thickness of the film, the annealing temperature, or the state of strain in the film. Moreover, adsorbed or absorbed species (by deposition or ionic impingement/ion bombardment) may modify the surface properties of the film or the mobility properties of the contact line film/substrate and thus the dewetting properties. Anisotropic properties of the film may also be used to initiate the dewetting from perfectly oriented edge fronts, leading to highly ordered 3D islands. New approaches using substrate pre-patterning or film patterning are very promising to achieve the dewetting engineering.</p><p><span>Ideal systems for studying solid state dewetting are single crystalline films deposited or bonded on amorphous substrates, so that, among the numerous dewetting systems reported in the literature, ultra-thin crystalline silicon-on-insulator (SOI) film (a Si film bonded on an amorphous SiO</span>₂<span> substrate) is considered as a model system for studying how to control solid state dewetting. Other systems, as Ni epitaxially grown on MgO, are also used to illustrate the different approaches for a “dewetting engineering”.</span></p></div>","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.03.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1828694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The nature of the air-cleaved mica surface","authors":"Hugo K. Christenson ,&nbsp;Neil H. Thomson","doi":"10.1016/j.surfrep.2016.03.001","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.03.001","url":null,"abstract":"<div><p><span>The accepted image of muscovite mica is that of an inert and atomically smooth surface, easily prepared by cleavage in an ambient atmosphere. Consequently, mica is extensively used a model substrate in many fundamental studies of surface phenomena and as a substrate for AFM<span> imaging of biomolecules. In this review we present evidence from the literature that the above picture is not quite correct. The mica used in experimental work is almost invariably cleaved in laboratory air, where a reaction between the mica surface, atmospheric CO</span></span>₂ and water occurs immediately after cleavage. The evidence suggests very strongly that as a result the mica surface becomes covered by up to one formula unit of K₂CO₃ per nm², which is mobile under humid conditions, and crystallises under drier conditions. The properties of mica in air or water vapour cannot be fully understood without reference to the surface K₂CO₃<span>, and many studies of the structure of adsorbed water on mica surfaces may need to be revisited. With this new insight, however, the air-cleaved mica should provide exciting opportunities to study phenomena such as two-dimensional ion diffusion<span><span>, electrolyte effects on surface conductivity, and two-dimensional </span>crystal nucleation.</span></span></p></div>","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.03.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2345092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomic layer deposition—Sequential self-limiting surface reactions for advanced catalyst “bottom-up” synthesis","authors":"Junling Lu ,&nbsp;Jeffrey W. Elam ,&nbsp;Peter C Stair","doi":"10.1016/j.surfrep.2016.03.003","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.03.003","url":null,"abstract":"<div><p><span>Catalyst synthesis with precise control over the structure of catalytic active sites at the atomic level is of essential importance for the scientific understanding of reaction mechanisms and for rational design of advanced catalysts with high performance. Such precise control is achievable using atomic layer deposition (ALD). ALD is similar to </span>chemical vapor deposition (CVD), except that the deposition is split into a sequence of two self-limiting surface reactions between gaseous precursor molecules and a substrate. The unique self-limiting feature of ALD allows conformal deposition of catalytic materials on a high surface area catalyst support at the atomic level. The deposited catalytic materials can be precisely constructed on the support by varying the number and type of ALD cycles. As an alternative to the wet-chemistry based conventional methods, ALD provides a cycle-by-cycle “bottom-up” approach for nanostructuring supported catalysts with near atomic precision.</p><p><span>In this review, we summarize recent attempts to synthesize supported catalysts with ALD. Nucleation and growth of metals by ALD on oxides and carbon materials<span> for precise synthesis of supported monometallic catalyst are reviewed. The capability of achieving precise control over the particle size of monometallic nanoparticles<span> by ALD is emphasized. The resulting metal catalysts<span><span> with high dispersions and uniformity often show comparable or remarkably higher activity than those prepared by conventional methods. For supported bimetallic catalyst synthesis, we summarize the strategies for controlling the deposition of the secondary metal selectively on the primary metal nanoparticle but not on the support to exclude monometallic formation. As a review of the surface </span>chemistry<span> and growth behavior of metal ALD on metal surfaces<span><span>, we demonstrate the ways to precisely tune size, composition and structure of bimetallic metal nanoparticles. The cycle-by-cycle “bottom up” construction of bimetallic (or multiple components) nanoparticles with near atomic precision on supports by ALD is illustrated. Applying </span>metal oxide ALD over metal nanoparticles can be used to precisely synthesize nanostructured metal catalysts. In this part, the surface chemistry of Al</span></span></span></span></span></span>₂O₃<span> ALD on metals is specifically reviewed. Next, we discuss the methods of tailoring the catalytic performance of metal catalysts including activity, selectivity and stability, through selective blocking of the low-coordination sites of metal nanoparticles, the confinement effect, and the formation of new metal-oxide interfaces. Synthesis of supported metal oxide catalysts with high dispersions and “bottom up” nanostructured photocatalytic architectures are also included. Therein, the surface chemistry and morphology of oxide ALD on oxides and carbon materials as well as their catalytic ","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.03.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3263790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ferroelectric polarization effect on surface chemistry and photo-catalytic activity: A review","authors":"M.A. Khan,&nbsp;M.A. Nadeem,&nbsp;H. Idriss","doi":"10.1016/j.surfrep.2016.01.001","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.01.001","url":null,"abstract":"<div><p><span><span>The current efficiency of various photocatalytic processes is limited by the recombination of photogenerated electron–hole pairs in the photocatalyst as well as the back-reaction of intermediate species. This review concentrates on the use of </span>ferroelectric polarization to mitigate electron–hole recombination and back-reactions and therefore improve photochemical reactivity. Ferroelectric materials are considered as wide band gap polarizable semiconductors. Depending on the surface polarization, different regions of the surface experience different extents of band bending and promote different carriers to move to spatially different locations. This can lead to some interesting interactions at the surface such as spatially selective adsorption and surface </span>redox reactions<span>. This introductory review covers the fundamental properties of ferroelectric materials, effect of an internal electric field/polarization on charge carrier separation, effect of the polarization on the surface photochemistry<span> and reviews the work done on the use of these ferroelectric materials for photocatalytic applications such as dye degradation and water splitting. The manipulation of photogenerated charge carriers through an internal electric field/surface polarization is a promising strategy for the design of improved photocatalysts.</span></span></p></div>","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.01.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2345093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface chemistry of Au/TiO2: Thermally and photolytically activated reactions","authors":"Dimitar A. Panayotov ,&nbsp;John R. Morris","doi":"10.1016/j.surfrep.2016.01.002","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.01.002","url":null,"abstract":"<div><p><span>The fascinating particle size dependence to the physical, photophysical, and chemical properties of gold has motivated thousands of studies focused on exploring the ability of supported gold nanoparticles to catalyze chemical transformations. In particular, titanium dioxide-supported gold (Au/TiO</span>₂<span>) nanoparticles may provide the right combination of electronic structure, structural dynamics, and stability to affect catalysis in important practical applications from environmental remediation to selective hydrogenation to carbon monoxide<span> oxidation. Harnessing the full potential of Au/TiO</span></span>₂<span> will require a detailed atomic-scale understanding of the thermal and photolytic processes that accompany chemical conversion. This review describes some of the unique properties exhibited by particulate gold before delving into how those properties affect chemistry<span> on titania supports. Particular attention is given first to thermally driven reactions on single crystal system. This review then addresses nanoparticulate samples in an effort begin to bridge the so-called materials gap. Building on the foundation provided by the large body of work in the field of thermal catalysis, the review describes new research into light-driven catalysis on Au/TiO</span></span>₂<span>. Importantly, the reader should bear in mind throughout this review that thermal chemistry and thermal effects typically accompany photochemistry. Distinguishing between thermally-driven stages of a reaction and photo-induced steps remains a significant challenge, but one that experimentalists and theorists are beginning to decipher with new approaches. Finally, a summary of several state-of-the-art studies describes how they are illuminating new frontiers in the quest to exploit Au/TiO</span>₂<span> as an efficient catalyst and low-energy photocatalyst.</span></p></div>","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.01.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3263791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reactive metal–oxide interfaces: A microscopic view","authors":"A. Picone,&nbsp;M. Riva,&nbsp;A. Brambilla,&nbsp;A. Calloni,&nbsp;G. Bussetti,&nbsp;M. Finazzi,&nbsp;F. Ciccacci,&nbsp;L. Duò","doi":"10.1016/j.surfrep.2016.01.003","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.01.003","url":null,"abstract":"<div><p><span>Metal–oxide interfaces play a fundamental role in determining the functional properties of artificial layered heterostructures<span>, which are at the root of present and future technological applications. Magnetic exchange and magnetoelectric coupling, spin filtering, metal passivation, catalytic activity of oxide-supported nano-particles are just few examples of physical and chemical processes arising at metal–oxide hybrid systems, readily exploited in working devices. These phenomena are strictly correlated with the chemical and structural characteristics of the metal–oxide interfacial region, making a thorough understanding of the atomistic mechanisms responsible of its formation a prerequisite in order to tailor the device properties. The steep compositional gradient established upon formation of metal–oxide heterostructures drives strong chemical interactions at the interface, making the metal–oxide boundary region a complex system to treat, both from an experimental and a theoretical point of view. However, once properly mastered, interfacial chemical interactions offer a further degree of freedom for tuning the </span></span>material properties<span><span>. The goal of the present review is to provide a summary of the latest achievements in the understanding of metal/oxide and oxide/metal layered systems characterized by reactive interfaces. The influence of the interface composition on the structural, electronic and </span>magnetic properties<span> will be highlighted. Particular emphasis will be devoted to the discussion of ultra-thin epitaxial oxides stabilized on highly oxidizable metals, which have been rarely exploited as oxide supports as compared to the much more widespread noble and quasi noble metallic substrates. In this frame, an extensive discussion is devoted to the microscopic characterization of interfaces between epitaxial metal oxides and the Fe(001) substrate, regarded from the one hand as a prototypical ferromagnetic material and from the other hand as a highly oxidizable metal.</span></span></p></div>","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.01.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2484642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Iron oxide surfaces","authors":"Gareth S. Parkinson","doi":"10.1016/j.surfrep.2016.02.001","DOIUrl":"https://doi.org/10.1016/j.surfrep.2016.02.001","url":null,"abstract":"<div><p><span>The current status of knowledge regarding the surfaces of the iron oxides, magnetite (Fe</span>₃O₄), maghemite (γ-Fe₂O₃<span>), haematite (α-Fe</span>₂O₃), and wüstite (Fe_{1−<em>x</em>}<span><span>O) is reviewed. The paper starts with a summary of applications where iron oxide surfaces play a major role, including corrosion, catalysis, spintronics, magnetic </span>nanoparticles<span><span><span><span> (MNPs), biomedicine, photoelectrochemical water splitting and groundwater remediation. The bulk structure and properties are then briefly presented; each compound is based on a close-packed anion lattice, with a different distribution and </span>oxidation state of the Fe cations in </span>interstitial sites. The bulk defect </span>chemistry is dominated by cation vacancies and interstitials (not oxygen vacancies) and this provides the context to understand iron oxide surfaces, which represent the front line in reduction and oxidation processes. Fe diffuses in and out from the bulk in response to the O</span></span>₂ chemical potential, forming sometimes complex intermediate phases at the surface. For example, α-Fe₂O₃ adopts Fe₃O₄-like surfaces in reducing conditions, and Fe₃O₄ adopts Fe_{1−<em>x</em>}<span>O-like structures in further reducing conditions still. It is argued that known bulk defect structures are an excellent starting point in building models for iron oxide surfaces.</span></p><p>The atomic-scale structure of the low-index surfaces of iron oxides is the major focus of this review. Fe₃O₄<span><span> is the most studied iron oxide in surface science<span>, primarily because its stability range corresponds nicely to the ultra-high vacuum environment. It is also an electrical conductor, which makes it straightforward to study with the most commonly used surface science methods such as photoemission<span> spectroscopies (XPS, UPS) and scanning tunneling microscopy (STM). The impact of the surfaces on the measurement of bulk properties such as </span></span></span>magnetism, the Verwey transition and the (predicted) half-metallicity is discussed.</span></p><p>The best understood iron oxide surface at present is probably Fe₃O₄(100); the structure is known with a high degree of precision and the major defects and properties are well characterised. A major factor in this is that a termination at the Fe_oct–O plane can be reproducibly prepared by a variety of methods, as long as the surface is annealed in 10⁻⁷−10⁻⁵ <!-->mbar O₂ in the final stage of preparation. Such straightforward preparation of a monophase termination is generally not the case for iron oxide surfaces. All available evidence suggests the oft-studied (√2×√2)R45° reconstruction results from a rearrangement of the cation l","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":9.8,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.02.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1945446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}