Rapid, facile, and environmental-friendly syntheses of monometallic
Ag NPs and Ag/Ni bimetallic nanoparticles using Canna indica leaf extract were successful via reduction of AgN[O.sub.3] and Ni[(N[O.sub.3]).sub.2] x 6[H.sub.2]O metal precursors.
Attempts to mimic the Ni-CODH active sites have been focused either on the preparation of monometallic
Ni and heterobimetallic Ni-Fe complexes or on the construction of [Ni[Fe.sub.3][S.sub.4]] clusters.
In the case of monometallic
Pd/Ce[O.sub.2] nanocomposites, the composites' preparation started with the production of an organic precursor by the liquid extraction method.
In recent years, bimetallic complexes encompassing two different metal centers have acknowledged escalated consideration owing to the assumption that their reactivity should vary significantly from that of monometallic
complexes or homobimetallic complexes .
Ruthenium complex [(S-[C.sub.6][H.sub.4]-N(Me)C[H.sub.2]C[H.sub.2]N(Me)-[C.sub.6][H.sub.4]- S)([P.sup.i][Pr.sub.3])Ru(NCMe)] reacts spontaneously with dinitrogen, where [N.sub.2] reversibly displaces acetonitrile to form the linear monometallic
[N.sub.2] complex [(S- [C.sub.6][H.sub.4]- N(Me)C[H.sub.2]C[H.sub.2]N(Me)-[C.sub.6][H.sub.4-]S)(Pi[Pr.sub.3])Ru([N.sub.2])], as shown in Fig.4.
Although oxide nanostructures have been grown by applying chemical methods, the experimental conditions have strongly limited the compositions to monometallic
oxides such as ZnO, Sn[O.sub.2], Im[O.sub.3] or Ti[O.sub.2].
Chen, and Yushan Yan, "Correlating the hydrogen evolution reaction activity in alkaline electrolytes with the hydrogen binding energy on monometallic
surfaces," Energy & Environmental Science 6 (2 April 2013), 15091512.
We painfully learned that the reaction of 1-alkenes with alkylalanes in the presence of zirconocene derivatives could undergo a few other competitive side reactions in addition to the desired single-stage carbometalation shown in the green frame of Scheme 4, of which (i) H-transfer hydrometalation, (76) (ii) the Kaminsky version of Ziegler-Natta polymerization, (77) (iii) bimetallic cyclic carbometalation, (74) and (iv) monometallic
cyclic carbometalation (78) are representative.
In the late 19th century, these bimetallic systems were simplified further into monometallic
In the latest stage of mining in Zlate Hory, 7 184.4 kt monometallic
and polymetallic ores incl.
This means that a monometallic
electrode is to be preferred.
It was neither fully bimetallic nor monometallic
as the Treasury found it impossible to get a sufficient quantity of silver circulating in the economy.