Simultaneously improving both NOx conversion and N2 selectivity in the selective catalytic reduction of NO by CO (CO-SCR) under O2-containing conditions is highly challenging because of the competitive reactions of NOx and CO with O2. Here, we demonstrate that the interfacial oxygen vacancies (IOVs) generated at the Co3O4-CeO2 heterointerfaces by b...
status: published
Simultaneously improving both NOx conversion and N2 selectivity in the selective catalytic reduction of NO by CO (CO-SCR) under O2-containing conditions is highly challenging because of the competitive reactions of NOx and CO with O2. Here, we demonstrate that the interfacial oxygen vacancies (IOVs) generated at the Co3O4-CeO2 heterointerfaces by b...
This work reports a strategy to promote the low-temperature CO2 methanation on the Ni-based catalyst by tuning the surface oxygen vacancy and medium-strength basic sites of the CeO2 support and thus changing the reaction pathway. La species was introduced into CeO2 support and calcined at 600 degrees C (CeO2-La-600) to form a La-Ce-O solid solution...
This work reports a strategy to promote the low-temperature CO2 methanation on the Ni-based catalyst by tuning the surface oxygen vacancy and medium-strength basic sites of the CeO2 support and thus changing the reaction pathway. La species was introduced into CeO2 support and calcined at 600 degrees C (CeO2-La-600) to form a La-Ce-O solid solution...
Non-equilibrium thermodynamics describe the current–voltage characteristics of electrochemical devices. For conventional electrode–electrolyte interfaces, the local activation overpotential is used to describe the electrostatic potential step between the two materials as a current is generated. However, the activation overpotential for the metal/mi...
Developing efficient catalysts for low reaction-temperature catalytic reduction of NO by CO (CO-DeNO(x)) is desirable but very challenging. Here, we report that hierarchically interconnected porous (HIP) MnxCo3-xO4 spinels, synthesized by a facile citric acid-assisted sol-gel method, can act as highly efficient catalysts for CO-DeNO(x). The obtaine...
Developing efficient catalysts for low reaction-temperature catalytic reduction of NO by CO (CO-DeNO(x)) is desirable but very challenging. Here, we report that hierarchically interconnected porous (HIP) MnxCo3-xO4 spinels, synthesized by a facile citric acid-assisted sol-gel method, can act as highly efficient catalysts for CO-DeNO(x). The obtaine...
A series of metal-modified Mo/gamma-Al2O3 catalysts were fabricated using the impregnation method. The influence of Ce content on the catalytic performance was systematically studied in a fixed-bed reactor. The catalysts were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, scanning electron microscopy, and the Brunauer-Emmett-...
A series of metal-modified Mo/gamma-Al2O3 catalysts were fabricated using the impregnation method. The influence of Ce content on the catalytic performance was systematically studied in a fixed-bed reactor. The catalysts were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, scanning electron microscopy, and the Brunauer-Emmett-...
