25-01-2013
 
  Keywords: alkali metals; biomass; catalytically active sites; heterogeneous catalysis; manganese oxide
 
  
 
   
 
   
 
   
 
  Banish the villains to their own realm: Biomass has gained widespread attention as a renewable energy 
 
  source. However, commercial catalysts used in power plants (co-)fuelled by biomass are deactivated by the 
 
  alkali-rich flue gas (see graph, black line). In contrast, one of two types of active sites in a promising alkali-
 
  resistant hollandite catalyst traps alkali-metal ions to free up the catalytically active sites for the reduction of 
 
  NO by NH3.The research was conducted at the SSRF beamline 14B1.
 
  
  Zhiwei Huang, Xiao Gu, Wen Wen, Pingping Hu, Michiel Makkee, He Lin, Freek Kapteijn, Xingfu Tang
 
  Angew. Chem. Int. Ed. 2013, 52, 660-664