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This book addresses electrocatalysis based on chalcogenides, particularly in the nanoscale domain. Special attention is paid to the hydrogen evolution reaction (HER) and the oxygen reduction reaction (ORR). The book provides an introduction to materials synthesis; the basic principles of electrocatalysis; related precious metal versus non-precious metal catalytic center chalcogenides as well as supports; and the role of such supports in stabilizing the catalytic centers. In short: pursuing a bottom-up approach, it covers the properties of this class of electrocatalysts and examines their applications in low-temperature fuel systems such as microfluidic fuel cells for portable devices. Accordingly, it is ideally suited for all professionals and researchers interested in electrochemistry, renewable energy and electrocatalysis, and non-precious metal centers for chemical energy conversion.

Electrocatalysis. --- Chemistry. --- Energy harvesting. --- Electrochemistry. --- Catalysis. --- Energy Harvesting. --- Energy Materials. --- Catalysis --- Electrochemistry --- Materials science. --- Force and energy. --- Activation (Chemistry) --- Chemistry, Physical and theoretical --- Surface chemistry --- Conservation of energy --- Correlation of forces --- Energy --- Physics --- Dynamics --- Material science --- Physical sciences --- Energy scavenging --- Harvesting, Energy --- Power harvesting --- Force and energy --- Power resources

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Electrochemical surface science (EC-SS) is the natural advancement of traditional surface science (where gas–vacuum/solid interfaces are studied) to liquid (solution)/electrified solid interfaces. Such a merging between two different disciplines—i.e., surface science (SS) and electrochemistry—officially advanced ca. three decades ago. The main characteristic of EC-SS versus electrochemistry is the reductionist approach undertaken, inherited from SS and aiming to understand the microscopic processes occurring at electrodes on the atomic level. A few of the exemplary keystone tools of EC-SS include EC-scanning probe microscopies, operando and in situ spectroscopies and electron microscopies, and differential EC mass spectrometry (DEMS). EC-SS indirectly (and often unconsciously) receives a great boost from the requirement for rational design of energy conversion and storage devices for the next generation of energetic landscapes. As a matter of fact, the number of material science groups deeply involved in such a challenging field has tremendously expanded and, within such a panorama, EC and SS investigations are intimately combined in a huge number of papers. The aim of this Special Issue is to offer an open access forum where researchers in the field of electrochemistry, surface science, and materials science could outline the great advances that can be reached by exploiting EC-SS approaches. Papers addressing both the basic science and more applied issues in the field of EC-SS and energy conversion and storage materials have been published in this Special Issue.

Pd thin films --- n/a --- Auger-Electron Spectroscopy --- benchmarking --- potential-dependent structures --- CO electro-oxidation --- surface reconstruction --- photo-electrochemistry --- nitrogen doping --- potential stepping --- DFT --- nanoparticles --- carbon nanofiber --- Pd --- gas diffusion electrode --- flexible ITO --- UPS --- palladium --- Lead OPD --- formic acid oxidation --- cobalt oxide --- adsorbed OH --- electrochemistry --- Pt --- mesopore --- DMFC --- pH and concentration effects --- solvothermal method --- direct methanol fuel cells --- EF-PEEM --- PVDF --- self-assembly --- PEMFC --- hard X rays --- photochemistry --- EQCM --- potential cycling --- surface alloy --- near ambient pressure XPS --- cobalt-based electrocatalyst --- silver single crystals --- Cu(111) --- electrodeposited alloys --- Pt single-crystal electrodes --- SOFC --- TiO2 --- oxygen evolution reaction --- silicon nanoparticles --- pump &amp --- graphitization --- in situ EC-STM --- oxygen reduction --- gold --- diazonium salts --- Au --- micropore --- solid/liquid interface --- XPS --- XAFS --- surface chemistry --- electrosynthesis --- porous fiber --- surface science --- click chemistry --- adhesion --- in situ --- methanol oxidation reaction --- hydroxyl radical --- mass transport --- free electron laser --- cyclic voltammetry --- redox properties --- electro-oxidation --- X-ray absorption spectroscopy --- hydrogen adsorption --- electrodeposition --- electrocatalysis --- Ordered mesoporous carbon --- Corrosion Protection --- electrochemical interface --- cyclic voltammetry (CV) --- FEXRAV --- photoelectron simulations --- Pt–Ru catalysts --- d-band theory --- bimetallic alloy --- photoconversion --- ordered mesoporous carbons --- carbon nanofibers (CNFs) --- platinum --- water splitting --- Surface Modification --- EPR spectroscopy --- scanning photoelectron microscopy --- model catalyst --- energy dispersive --- porphyrins --- combined non-covalent control --- AES --- spin-coating --- SAMs --- water oxidation --- in-situ X-ray diffraction --- Au nanocrystals --- model systems --- platinum single crystals --- cathode --- redox monolayers --- surface nanostructures --- bifunctional oxygen electrode --- polymer --- photoelectrochemistry --- metal-electrolyte interface --- electrocatalysts --- APTES --- porogen --- electrophoretic deposition --- thin-films --- ammonia activation --- graphene --- ORR --- polypyrrole --- iridium --- surface area --- reduced graphene oxide --- Magnetite --- Platinum --- electrospinning --- catalysts --- Blackening of Steel --- switchable surfaces --- in situ ambient pressure XPS --- fuel cells --- methanol oxidation --- quick-XAS --- nickel --- CO oxidation --- solid oxide fuel cells --- operando --- probe --- CdS --- alkanthiols --- ECALE --- alkoxyamine surfaces --- underpotential deposition (upd) --- Pt-Ru catalysts