About this Research Topic
The emission of air pollutants, including nitrogen oxides (NOx), elemental mercury (Hg0), volatile organic compounds (VOCs), etc., from the coal-combustion industries constitutes the severe environmental problem in recent decades. Among the various pollutant-abatement technologies, catalysis is recognized as an effective technique due to its merits of comparably high effectiveness and low operation cost. Being the core component in this technology, the activity of the catalysts predominantly determines the pollutant removal efficiency of the entire system. Thus, developing a highly-active catalyst is the key step to solve this environmental problem.
Transition metal oxides and the corresponding composites have been a hot topic among the studies on new materials for the catalysts to appropriately degrade air pollutants relying on their variable valence states, unique crystal structures, and rich surface defects. For example, cerium metal oxides are commonly considered to be the typical catalyst system for Hg0, NOx, and VOCs removal. Given the doping of foreign metal oxides, the enhanced interactions among the multi-components would boost the formation of oxygen vacancies and active oxygen species, which are capable of assuring the sufficient adsorption and activation of the reactants, thus accelerating the elimination of the air pollutants. In addition, the optimization of micro-structures of the catalysts is able to improve their performances. Although plentiful researches have been conducted on this, yet it is still inadequate in enhancing the catalyst stability, especially for the poisoning resistance.
The rapid development of materials science and nanotechnology has led to significant advances in understanding the structure-performance relationship, mechanism, anti-poisoning ability, and stability of transition metal oxides, which has inspired this Research Topic. We cordially invite research activities in this area and improve our understanding of the key scientific and technological problems in effective removal of air pollutants over transition metal oxide catalyst surfaces. Potential topics include, but not limited to:
• Theoretical understanding of the structure-performance relationships of the transition metal oxide catalysts.
• Investigation of the air pollutant removal reaction pathways over the transition metal oxide catalysts.
• Poisoning and anti-poisoning mechanisms of the transition metal oxide catalysts.
• Urban air pollution and treatment methods.
• Atmospheric environment monitoring and air pollution risk assessment.
• Application of artificial intelligence technology in pollutant identification.
Transition metal oxides and the corresponding composites have been a hot topic among the studies on new materials for the catalysts to appropriately degrade air pollutants relying on their variable valence states, unique crystal structures, and rich surface defects. For example, cerium metal oxides are commonly considered to be the typical catalyst system for Hg0, NOx, and VOCs removal. Given the doping of foreign metal oxides, the enhanced interactions among the multi-components would boost the formation of oxygen vacancies and active oxygen species, which are capable of assuring the sufficient adsorption and activation of the reactants, thus accelerating the elimination of the air pollutants. In addition, the optimization of micro-structures of the catalysts is able to improve their performances. Although plentiful researches have been conducted on this, yet it is still inadequate in enhancing the catalyst stability, especially for the poisoning resistance.
The rapid development of materials science and nanotechnology has led to significant advances in understanding the structure-performance relationship, mechanism, anti-poisoning ability, and stability of transition metal oxides, which has inspired this Research Topic. We cordially invite research activities in this area and improve our understanding of the key scientific and technological problems in effective removal of air pollutants over transition metal oxide catalyst surfaces. Potential topics include, but not limited to:
• Theoretical understanding of the structure-performance relationships of the transition metal oxide catalysts.
• Investigation of the air pollutant removal reaction pathways over the transition metal oxide catalysts.
• Poisoning and anti-poisoning mechanisms of the transition metal oxide catalysts.
• Urban air pollution and treatment methods.
• Atmospheric environment monitoring and air pollution risk assessment.
• Application of artificial intelligence technology in pollutant identification.
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