%0 Journal Article %T Fabrication of sulfated spinel nickel aluminate for biofuel production: influence of Ni/Al ratio on its activity %A Heidari, Alireza %A Ahmadpour, Ali %A حامد نایب زاده %A Saghatoleslami, Nasser %A Azmoon, Amirhossein %J Applied Nanoscience %@ 2190-5509 %D 2020