List of Articles Mahnaz Shamsi-Sani Article 1 - Rice husk ash (RHA): A Highly efficient solid acid catalyst for the oxidation of alcohols and trimethylsilyl, tetrahydropyranyl and methoxymethyl ethers with CrO3 Farhad Shirini Masoumeh Abedini Mahnaz Shamsi-Sani Mohadeseh Seddighi Iranian Journal of Catalysis , Issue 4 , Year , Summer 2015 Article 2 - Introduction of sulfonated rice husk ash as a highly efficient reusable catalyst for the protection of the hydroxyl group Farhad Shirini Masoumeh Abedini Mahnaz Shamsi-Sani Mohadeseh Seddighi Iranian Journal of Catalysis , Issue 5 , Year , Autumn 2015