Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100648992> ?p ?o ?g. }
Showing items 1 to 54 of
54
with 100 items per page.
- W3100648992 abstract "In Chapters 4 and 5, we demonstrated that local structures and charge distributions have an enormous impact on the equilibrium constants, trajectories, and kinetics of reactions involving soluble oxide precursors. In this chapter, we highlight those features that make reactions on extended oxide surfaces either similar to or dramatically different from the reactions documented in hydrolysis diagrams for each metal cation (see Chapter 5). We first describe oxide surface structures and then discuss how these structures impact both acid–base and ligand-exchange phenomena. In addition to dense oxides, we also introduce some of the chemistry associated with layered materials. Lamellar materials are important from both a fundamental and technological perspective, because water and ions can readily penetrate such structures and provide conditions under which almost every oxygen anion is at an oxide–water interface (see Chapter 10 and Chapter 11). This chapter focuses on oxides containing octahedral cations. The distinctive chemistry of oxides based on tetrahedral cations, including the clay minerals and the zeolites, are the focus of Part Five. The structures of bulk oxides were introduced in Chapter 2. However, for many oxides, the surface structures that interact with aqueous solutions are substantially different from structures found in the bulk. Here, we introduce the basic principles of oxide surfaces that make them chemically active. As a starting point, consider ideal oxide surfaces containing +2 octahedral cations. Pristine oxide surfaces can be created by cleaving perfect crystals in an ultrahigh-vacuum environment. The creation of new surfaces requires an expenditure of energy corresponding to the cohesive energy of the solid, which in turn represents the energy required to break every bond along a given fracture plane. For MgO, the Mg−O bond energy is 380 kJ/mole. Each surface created contains 1.4.1019 oxygen atoms/m2, or 2.4.10−5 moles of bonds. Because two surfaces are created in the fracture event, the initial interfacial energy of each resulting MgO surface is (1/2)(380 kJ/mole)/(2.4_10−5 mole/m2 )=4560 mJ/m2." @default.
- W3100648992 created "2020-11-23" @default.
- W3100648992 creator A5015544419 @default.
- W3100648992 creator A5091318688 @default.
- W3100648992 date "2016-03-17" @default.
- W3100648992 modified "2023-10-14" @default.
- W3100648992 title "The Chemistry of Extended Oxide Surfaces" @default.
- W3100648992 doi "https://doi.org/10.1093/oso/9780199384259.003.0011" @default.
- W3100648992 hasPublicationYear "2016" @default.
- W3100648992 type Work @default.
- W3100648992 sameAs 3100648992 @default.
- W3100648992 citedByCount "0" @default.
- W3100648992 crossrefType "book-chapter" @default.
- W3100648992 hasAuthorship W3100648992A5015544419 @default.
- W3100648992 hasAuthorship W3100648992A5091318688 @default.
- W3100648992 hasConcept C147789679 @default.
- W3100648992 hasConcept C171250308 @default.
- W3100648992 hasConcept C178790620 @default.
- W3100648992 hasConcept C179104552 @default.
- W3100648992 hasConcept C184651966 @default.
- W3100648992 hasConcept C185592680 @default.
- W3100648992 hasConcept C192562407 @default.
- W3100648992 hasConcept C2779851234 @default.
- W3100648992 hasConcept C544153396 @default.
- W3100648992 hasConcept C77851909 @default.
- W3100648992 hasConcept C8010536 @default.
- W3100648992 hasConceptScore W3100648992C147789679 @default.
- W3100648992 hasConceptScore W3100648992C171250308 @default.
- W3100648992 hasConceptScore W3100648992C178790620 @default.
- W3100648992 hasConceptScore W3100648992C179104552 @default.
- W3100648992 hasConceptScore W3100648992C184651966 @default.
- W3100648992 hasConceptScore W3100648992C185592680 @default.
- W3100648992 hasConceptScore W3100648992C192562407 @default.
- W3100648992 hasConceptScore W3100648992C2779851234 @default.
- W3100648992 hasConceptScore W3100648992C544153396 @default.
- W3100648992 hasConceptScore W3100648992C77851909 @default.
- W3100648992 hasConceptScore W3100648992C8010536 @default.
- W3100648992 hasLocation W31006489921 @default.
- W3100648992 hasOpenAccess W3100648992 @default.
- W3100648992 hasPrimaryLocation W31006489921 @default.
- W3100648992 hasRelatedWork W12088405 @default.
- W3100648992 hasRelatedWork W12306553 @default.
- W3100648992 hasRelatedWork W13864473 @default.
- W3100648992 hasRelatedWork W14276915 @default.
- W3100648992 hasRelatedWork W1901725 @default.
- W3100648992 hasRelatedWork W2294541 @default.
- W3100648992 hasRelatedWork W2756174 @default.
- W3100648992 hasRelatedWork W7509891 @default.
- W3100648992 hasRelatedWork W7902989 @default.
- W3100648992 hasRelatedWork W8967148 @default.
- W3100648992 isParatext "false" @default.
- W3100648992 isRetracted "false" @default.
- W3100648992 magId "3100648992" @default.
- W3100648992 workType "book-chapter" @default.