Noun1.oxidation state- the degree of oxidation of an atom or ion or molecule; for simple atoms or ions the oxidation number is equal to the ionic charge; "the oxidation number of hydrogen is +1 and of oxygen is -2" oxidation number ...
英语解释 the degree of oxidation of an atom or ion or molecule; for simple atoms or ions the oxidation number is equal to the ionic charge相似短语 state of oxidation 氧化状态 oxidation state 氧化态,氧化状态 oxidation state of central ion 【化】 中心离子氧化态 unfamiliar oxidation state...
Related to oxidation:oxidation number,oxidation state ox·i·da·tion (ŏk′sĭ-dā′shən) n. 1.The combination of a substance with oxygen. 2.A reaction in which the atoms of an element lose electrons and the valence of the element is correspondingly increased. ...
The catalytic activity of metals supported on oxides depends on their charge and oxidation state. Yet, the determination of the degree of charge transfer at the interface remains elusive. Here, by combining density functional theory and first-principles molecular dynamics on Pt single atoms deposited...
The method is based on wavefunction topology and the modern theory of polarization, rather than charge density partitioning or wavefunction projection, and, as such, re-formulates the concept of oxidation state without assuming real-space charge transfer between atoms. This formulation provides rigorous...
The interaction of atomic Pt with the regular CeO2(111) surface has been studied by periodic density functional calculations using exchange-correlation potentials with the inclusion of the on-site Hubbard correction (LDA+U and GGA+U) or employing the hybrid HSE06 functional. Various starting geomet...
Yet quantum mechanical calculations suggest that, regardless of formaloxidation state, the local charge on the transition metal atoms is largely unchanged. The researchers found that a change in theoxidation stateof the element chromium (from chromium 6 to chromium 3) was linked to the darkening of...
The combination of a substance with oxygen. Oxidization Oxidation Oxidation (chemistry) A reaction in which the atoms of an element lose electrons and the oxidation state of the element increases. Oxidization The process of oxidizing; the addition of oxygen to a compound with a loss of electro...
What is Oxidation State? Atomic composition and electron shells Every element is made of atoms. Atoms are made of protons and electrons. Recall that an element's atomic number equals the number of protons in the nucleus of a single atom. Protons stay inside the nucleus, but electrons reside ...
when metal single atoms are anchored on the supports, the metal-support interaction and the heterogeneity of the supports endow single atoms with tunable electronic properties, such as oxidation state, highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO), spin states,...