The catalytic behaviour of zirconium phosphate oxynitrides ZrPON and Pt supported ZrPON catalysts in n-heptane conversion is examined. The results show that the distribution of the products depends on the reaction temperature. In addition, it has been established that the acid-base properties of ZrPON supports greatly influence the n-heptane reforming reactions since the increase of ZrPON basicity enhances both n-heptane conversion and aromatics selectivity.