groups with K+has higher reversibility and stability than the de-/intercalation process. It is worth noting that the amount of oxygen functional group in GO-3 is lower than that of GO-5 and close to that of GO-1. The highest reversible capacity (Fig. 2b) and the high capacity contributi...
To further confirm the molecular structures of the dBO-PAHs and determine their molecular geometries, single crystals ofBO1a,BO2,BO3a,BO3d,BO4b,BO4d,BO4e,BO5, andBO6were carefully grown and analyzed by X-ray diffraction. The crystal structures, selected bond lengths, bond angles, dihedral an...
hydrogen atoms, wherein the carbon atom is contained in an alicyclic structure (a) a carbon-carbon double bond group (b) any one of a functional group containing a heteroatom or a linking group derived from such a functional group, a carbon-carbon double bond group and an aromatic ring. ...
Transition-metal-oxide catalysts can be synthesized into a breadth of different structures (such as layered double hydroxides [LDHs], spinels, and rock salts), as shown in Figure 2. Of these transition-metal electrocatalysts, nickel oxides have shown some of the highest catalytic activity, comparab...
Common organic compounds like conventional polymer materials are held together by single and/or double bonds which physically contain electron pairs in σ- or π-orbitals, one σ-pair in a single bond and one σ- and one π-pair in a double bond. In addition, certain groups like ketone and...
(c) optionally reacting the double bond thus formed to form a cycloalkyl group. DETAILED DESCRIPTION OF THE INVENTION In this specification a number of terms are used which are well known to a skilled addressee. Nevertheless for the purposes of clarity a number of terms will be defined. As ...
double bond of (groupO2) ketones, lactones, anhydrides, etc.; the 531.9 eV to the C–O–C in furans or keto-enolic tautomers of groupO3; the 532.7 eV to the phenolic group (groupO4), and the 534.2 eV to the carboxylic group (groupO6). Consistent with the TPDE profile ...
When hydrogen and oxygen bond, why does oxygen have a slightly negative charge and hydrogen have a slightly positive charge? Bonding: There is the presence of a distinct type of bonding between different compounds. The types of bonding depend on the...
bond, alkyl, alkenyl, alkynyl, haloalkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, cycloalkylalkyl, heterocycloalkylalkyl, arylalkyl, heteroarylalkyl and acyl, each of which may be optionally substituted; Z2 is —N(R7) each R7 is independently selected from the group ...
Density functional theory (DFT) calculations were performed in order to assess the effect of this structural modification on the adsorption energies for the different OER intermediates *OH, *O, and *OOH on the surface of the iridate catalyst (see Supplementary Figs.29–33and Supplementary Tables3...