Crucial roles of interfacial coupling and oxygen defect in multifunctional 2D inorganic nanosheets

Laser‐Induced Surface Reconstruction of Nanoporous Au‐Modified TiO2 Nanowires for In Situ Performance Enhancement in Desorption and Ionization Mass Spectrometry

“…The Ti 2p XPS spectra exhibited characteristic peaks centered at 459.0 eV (Ti 2p 3/2 ) and 464.8 eV (Ti 2p 1/2 ), which were attributed to the Ti 4+ valence states in the lattice oxygen. [ 66 ] With the increasing laser energy, additional two shoulder peaks centered at 458.1 eV (Ti 2p 3/2 ) and 463.9 eV (Ti 2p 3/2 ) were observed, which were reported to be associated with the Ti 3+ valence state and oxygen vacancy defect. [ 67 ] Two distinct peaks located at 530.2 eV (lattice oxygen in TiO bond) and 532.3 eV (non‐lattice oxygen; surface hydroxyl group [TiOH] or oxygen vacancy) were observed in the O 1s XPS spectra.…”

Recent advances in heterostructured cathodic electrocatalysts for non-aqueous Li–O2batteries

“…In addition to the above heterostructures, there are also some other heterostructures applied in Li-O 2 batteries. For example, Jin et al 137 synthesized Co and Fe layered double hydroxide (LDH)-RuO 2 nanosheet heterostructures by the self-assembly technique (Figure 8a). The strong interface electronic coupling between LDH and RuO 2 nanosheets with oxygen vacancies greatly improved the diffusion of Li + and reactants, which are responsible for the enhanced transfer kinetics towards OER and ORR activities.…”

“…In addition to the above heterostructures, there are also some other heterostructures applied in Li–O 2 batteries. For example, Jin et al 137 synthesized Co and Fe layered double hydroxide (LDH)–RuO 2 nanosheet heterostructures by the self-assembly technique ( Fig. 8a ).…”

Multilayer Conductive Hybrid Nanosheets as Versatile Hybridization Matrices for Optimizing the Defect Structure, Structural Ordering, and Energy‐Functionality of Nanostructured Materials

“…[5,6] To date, a huge number of reports have been published regarding the exploration of efficient energy-functional hybrid materials based on hybridization with conductive 2D NSs, such as reduced graphene oxide (rGO), 1T′-MoS 2 , RuO 2 , and MXene. [7][8][9] To further improve the energy performances of these 2D NS-based hybrid materials, modification of the surface bonding natures of conductive NSs has been pursued as a chemical strategy to enhance the interfacial chemical interactions with hybridized species. [10,11] For example, hydrophilic-surfaced RuO 2 NS can function as an effective hybridization matrix for polar inorganic species over hydrophobic rGO NS due to a strong electrostatic dipole-dipole interaction.…”