Efficient reduction of nitric oxide using zirconium phosphide powders synthesized by elemental combination method

Abstract

Zirconium phosphide (ZrP) powders were synthesized by elemental combination method via the direct reaction of zirconium powders with red phosphorus, and characterized by XRD, SEM, XPS, XRF, SAED and TEM measurements. The obtained ZrP powders were found to exhibit apparent activity in the ready eliminateion of nitric oxide (NO) via facile redox reactions, and the elimination dynamics was evaluated within the context of various important experimental parameters, such as reaction temperature and gas concentration. At a fixed amount of ZrP powders, an increasing amount of NO would be eliminated with increasing reaction temperature, and complete conversion of NO to N2 could be reached in the range of 700 to 800 °C. The addition of NH3 also facilitated NO elimination at a fixed reaction temperature. Furthermore, of the products of the elimination process, zirconia (ZrO2) powder is a kind of biocompatible material, red phosphorus can be used to produce safety matches, organophosphorous pesticide and phosphor bronze, and the produced N2 might be collected and used as a protective gas or be converted into liquid nitrogen for other purposes.

Hydrocracking of crude palm oil to a biofuel using zirconium nitride and zirconium phosphide-modified bentonite

“…Among metals that have been well studied, specifically, zirconium nitride appears to be worth glancing at since it provides a high surface area, 39 high activity, and superior stability, 40 and showed remarkable thermal conductivity, good abrasive resistance, and good corrosion resistance. 41 Besides, some researchers reported that zirconium phosphide has good catalytic properties in the performance of the nitrogen evolution reaction 42 and electrochemical application. 43 Taking the above discussion into account, the comparison or investigative studies on the catalytic ability of zirconia nitride and zirconia phosphide-modified bentonite in the context of their application in the hydrocracking reactions of CPO are either adequately limited, and to the best of knowledge, have not been reported yet.…”