MCM-41 and SBA-15 with NM located in mesopores or on the external surface were prepared and characterized by TEM. 
TEM
31 P MAS NMR spectroscopy was used to quantify arylphosphines in complexes with NM. 
31 P MAS NMR spectroscopy
MCM-41 and SBA-15 with NM located in mesopores or on the external surface were prepared and characterized by TEM.  The reaction between NM and triphenylphosphine (TPP) within 3.0 nm MCM-41 pores takes due to confinement effects multiple weeks.  TPP loading revealed that 66 % of NMs are located on the external surface of MCM-41. 
MCM-41
MCM-41 and SBA-15 with NM located in mesopores or on the external surface were prepared and characterized by TEM. 
SBA-15