Oxygen Vacancies and Ca- talysis on Ceria Surfaces. C T Campbell,C H F Peden. Science . 2005Campbell CT, Peden CH. Chemistry. Oxygen vacancies and catalysis on ceria surfaces. Science 2005;309:713e4.C.T. Campbell and C.H.F. Peden. Oxygen vacancies and catalysis on ceria surfaces. ...
Oxygen vacancies on cerium oxide surfaces play a crucial role in catalysts for automotive exhaust treatment and the hydrogen economy. In their Perspective, Campbell and Peden describe new work ( Esch et al.) that uses scanning tunneling microscopy combined with density functional theory to reveal the...
It has been found that changing the local electronic structure by introducing dopants can regenerate oxygen vacancies. Chen et al. [82] prepared metal Bi to prevent the deactivation of oxygen vacancies in Bi2O2CO3 and improved the photocatalytic stability of oxygen vacancies. The combination of ...
Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its ApplicationsMOYA A, CHEREVAN A, MARCHESAN S,et al.Oxygenvacancies and interfaces enhancing photocatalytic hydrogenproduction in mesoporous CNT/Ti02, hybrids[J]. Appl.Catal.B:Environ, 2015,179: 574-582...
we performed operando TEM in liquids to probe the dynamic wetting behaviour of oxygen-evolving cobalt-based oxide catalysts under potential cycling, including probing of the highly OER-active perovskite Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF), where δ denotes the number of oxygen vacancies. ...
The formation of oxygen vacancies is one of the most critical factors that can improve the electronic and catalytic properties of metal oxides, in which an important challenge is to lower the formation energy of oxygen vacancies at the interface structur
makingtheoxygenvacanciesdominatedcobalt–nickelsuldeinter ace porousnanowires(NiS 2 /CoS 2 –ONWs) orboostingOERcatalysisthrough insituelectrochemicalreactiono NiS 2 /CoS 2 inter aceNWs.Becauseo the abundantoxygenvacanciesandinter aceporousnanowiresstructure,they cancatalyzetheOERe cientlywithalowoverpotential...
The amount of oxygen desorbed increased with increasing Sr content at a fixed B-site composition, for which an increase in the number of oxide ion vacancies with x was responsible. On the other hand, the total amount of oxygen desorbed was hardly affected by B-site composition, but partial...
The symmetry of oxygen vacancy regulates the effect of H2O on toluene oxidation.The asymmetric oxygen vacancies accelerate H2O activation to generate OH species.The symmetric oxygen vacancies fail to activate H2O and cause competitive adsorption.MnO2-AsOv possesses high activity and stability for humid ...
Review article Review on the oxidative catalysis methods of converting lignin into vanillin 5.2 Defect engineeringOxygen vacancy is a typical defect engineering that has been widely used to enhance the photocatalytic activity of catalysts [137]. In addition to this, halogen vacancies are one of the ...