Authors:Cleanio L. Lima, Hélvio S. A. de Sousa, Santiago J. S. Vasconcelos, Josué M. Filho, Alcemira C. Oliveira, Francisco F. de Sousa, and Alcineia C. Oliveira
temperature programmed desorption of Pyridine (Py-TPD). 50 mg of each catalyst was pretreated at 150 °C under nitrogen flow for 1 h. Then Py was pulsed into the reactor at 250 °C under He flow until the acid sites were saturated. Finally, the physisorbed Py
Authors:Mi-Young Kim, Se Min Park, Jung-Hyun Park, Chae-Ho Shin, Won-Jin Moon, Nark-Eon Sung, and Gon Seo
Temperature-programmed-desorption (TPD) profiles of ammonia from the platinum catalysts were examined using a homemade TPD apparatus. A 0.1 g platinum catalyst was charged in a quartz tube with an O.D. = 1/4′ and then activated in an
-IR, TG/DTA, ICP-AES, NH 3 -TPD and N 2 gas adsorption methods were used for the characterization of the zeolite samples. In order to determine the chemical composition of fresh and reused catalysts, zeolite samples were analyzed by ICP-AES (Perkin
Authors:Antonella Gervasini, Paolo Carniti, and Simona Bennici
evidenced by O 2 -TPD. On the contrary, O 2 desorption from deactivated Cu/ZSM-5 (after reaction at 250 °C) occurred at around 330 °C according to O 2 -TPD results, and stable N 2 O decomposition activity could take place only above 350 °C. This is the
Authors:Viorel Chihaia, Karl Sohlberg, R. Kourieh, S. Bennici, and A. Auroux
thermogravimetric (TG) analyses were performed on a SETARAM Labsys instrument in the 30–900 °C temperature range, with a heating rate of 5 °C min −1 , under air flow.
Temperature-programmed reduction (TPR) was performed using a TPD/R/O-1100 instrument
Authors:Hugo Rojas, Gloria Borda, María Brijaldo, Patricio Reyes, and Jesús Valencia
out in a Micromeritics TPD/TPR 2900 apparatus.
The substrate, m -dinitrobenzene, used in the present study was provided by Merck (>99%). Reactions were conduced in a in a batch reactor at a