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      2. 鈣鈦礦催化劑用于氨選擇性還原氮氧化物的研究進展
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        國家自然科學基金項目(51878644)


        Perovskite catalysts for selective catalytic reduction of NOx with NH3
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          摘要:

          氨選擇性催化還原氮氧化物(NOx)技術是目前應用較為廣泛的催化脫硝技術,鈣鈦礦材料因其獨特的結構、良好的穩定性且環保無害的特點成為選擇性催化還原NOx領域的研究熱點。本文綜述了近年來國內外關于鈣鈦礦NH3-SCR催化劑的研究進展,較為全面地對鈣鈦礦催化劑的主要類型、脫硝活性、構效關系進行了論述,同時介紹了鈣鈦礦在光輔助SCR技術這一全新領域的研究進展,并總結了鈣鈦礦催化劑的NH3-SCR反應機制,對該領域未來可能的發展方向和研究目標進行了展望。

          Abstract:

          Ammonia selective catalytic reduction of nitrogen oxides (NOx) technology with V2O5-WO3 (MoO3)/TiO2 as the core catalyst is currently widely used. But it has many problems such as narrow and high-temperature window,easy to poison by alkali inactivation,vanadium's biological toxicity and secondary pollution to the environment,which require researchers to develop new efficient and environmentally friendly catalyst systems. Due to their unique structure,good stability and environmentally friendly characteristics,perovskite materials have become a research hotspot in the field of selective catalytic reduction of NOx. We reviewd the research progress of perovskite NH3-SCR catalysts at home and abroad in recent years,and comprehensively discussed the main types,denitrification activity and structure-activity relationship of perovskite catalysts. At the same time,the research progress of perovskite in the new field of photo photo-assisted SCR technology was introduced. In addition,we summarized the research on the NH3-SCR reaction mechanism of perovskite catalysts,and prospectd the possible future development directions and research goals of this field.

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        拓凱,張朋,王利,黃宇.鈣鈦礦催化劑用于氨選擇性還原氮氧化物的研究進展[J].華中農業大學學報,2020,39(5):26-34

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        • 收稿日期:2020-05-06
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        • 在線發布日期: 2020-10-05
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