TY - JOUR
AU1 - Wang, Aili
AU2 - Yu, Dejian
AU3 - Yin, Hengbo
AU4 - Yuan, Wei
AB - Bimetallic CuxAgy (x, y = 1‒9) nanoparticles were successfully prepared by a successive precipitation and reduction method using copper nitrate and silver nitrate as metal precursors, sodium hydroxide as a precipitant, and hydrazine hydrate as a reductant at 30 °C. In the bimetallic CuxAgy nanoparticles, Ag nanoparticles well anchored at the surfaces of Cu nanoparticles. There exists an interaction between metallic Ag and Cu components through the electron transfer from Ag nanoparticle to Cu nanoparticle, which effectively improves the catalytic activities of the bimetallic CuxAgy nanoparticles in the hydrogenation of 4-nitrophenol with gaseous hydrogen to 4-aminophenol. When the bimetallic Cu7Ag3 nanoparticles catalyzed the hydrogenation reaction at 90‒150 °C, the experimental data could be well fitted by a powder type reaction kinetic model. The simulated activation energy, Ea, is 40.8 kJ·mol‒1, which reveals that the catalytic hydrogenation of 4-nitrophenol with gaseous hydrogen to 4-aminophenol on the bimetallic Cu7Ag3 nanoparticle catalyst can be conducted under a mild reaction condition.Graphical Abstract[graphic not available: see fulltext]
TI - Preparation of Bimetallic CuxAgy Nanoparticles and their Catalytic Performance in Hydrogenation of 4-Nitrophenol with H2 to 4-Aminophenol
JF - Catalysis Letters
DO - 10.1007/s10562-022-03946-z
DA - 2022-12-01
UR - https://www.deepdyve.com/lp/springer-journals/preparation-of-bimetallic-cuxagy-nanoparticles-and-their-catalytic-bIUK82CiLc
SP - 3691
EP - 3703
VL - 152
IS - 12
DP - DeepDyve
ER -