Ge vacancies occupy exclusively the 24c sites, which correspond to half the 6c sites in the usual parent type-I clathrate structure.
Based on the synergistic effects of layered titanate nanofibers (TNFs), oxygen vacancy occupied δ-Bi2O3 and surface carboxyl/hydroxy groups uniformly arranged cellulose, a layer-by-layer assembled nano-cellulose hydrogel coated flexible titanate-bismuth oxide membrane (CH-TBM) was developed for efficiently handling this sewage.
When at least one slice of cells is "defective" under thermal dissolution mechanism, e.g., the oxygen vacancies are occupied by oxygen ions, the reset transition occurs.
Assuming that Ta5+ vacancies are occupied by H+ in a form of bridging hydroxyl groups Ta OH Ta in order to satisfy electrical neutrality, the presence of significant levels of hydrogen atoms within Ta2O5 concordant with H enrichment at defects was identified by time-of-flight secondary ion mass spectrometry (ToF-SIMS).
For example, Farrusseng and co-workers synthesized defective MOF-5 and observed that linker vacancies partly occupied by OH groups catalyze the alkylation of biphenyl with tert-butyl chloride.
Zhan et al. [50] proposed the presence of two sub-bands centered at 2.14 and 2.37 eV, which correspond to unoccupied oxygen vacancies and singly occupied oxygen vacancies [53, 54], respectively.
Furthermore, if the vacancy is occupied by an atom from the transition-metals, not only do impurity levels make their presence in and out of the gap region but larger moment can also occur as a result.
"I would ask Santa for a retail anchor to move into the Town Center," he said of the vacancy formerly occupied by Sport Chalet.
He atoms occupied vacancies, and hydrogen are trapped by He-V complexes, so the presence of He suppresses the formation of hydrogen bubbles [19].
