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Hydride-containing 2-Electron Pd/Cu Superatoms as Catalysts for Efficient Electrochemical Hydrogen Evolution

The first hydride-containing 2-electron palladium/copper alloys, [PdHCu11{S2P(O i Pr)2}6(C≡CPh)4] (PdHCu11) and [PdHCu12{S2P(O i Pr)2}5{S2PO(O i Pr)} (C≡CPh)4] (PdHCu12), are synthesized from the reaction of [PdH2Cu14{S2P(O i Pr)2}6(C≡CPh)6] (PdH2Cu14) with trifluoroacetic acid (TFA). X-ray diffraction reveals that the PdHCu11 and PdHCu12 kernels c...

Influence of the rare earth (R) element in Ru-supported RScSi electride-like intermetallic catalysts for ammonia synthes...

This study investigates the influence of the rare-earth (R) element in Ru/RScSi electride-like intermetallic catalysts for ammonia synthesis under mild conditions (300–450 °C; 1–5 bar). All materials present poor specific surface area and the grain size impacts the ammonia yield. The catalytic performances follow the La to Gd lanthanides series (Ru...

Plasma Functionalization of Silica Bilayer Polymorphs.

Published in ACS applied materials & interfaces

Ultrathin silica films are considered suitable two-dimensional model systems for the study of fundamental chemical and physical properties of all-silica zeolites and their derivatives, as well as novel supports for the stabilization of single atoms. In the present work, we report the creation of a new model catalytic support based on the surface fu...

Molecular Ln(III)-H-E(II) Linkages (Ln=Y, Lu; E=Ge, Sn, Pb).

Published in Chemistry (Weinheim an der Bergstrasse, Germany)

Following the alkane-elimination route, the reaction between tetravalent aryl tintrihydride Ar*SnH3 and trivalent rare-earth-metallocene alkyls [Cp*2 Ln(CH{SiMe3 }2 )] gave complexes [Cp*2 Ln(μ-H)2 SnAr*] implementing a low-valent tin hydride (Ln=Y, Lu; Ar*=2,6-Trip2 C6 H3 , Trip=2,4,6-triisopropylphenyl). The homologous complexes of germanium and ...

Di- and Tetrameric Molybdenum Sulfide Clusters Activate and Stabilize Dihydrogen as Hydrides

Published in JACS Au

NaY zeolite-encapsulated dimeric (Mo2S4) and tetrameric (Mo4S4) molybdenum sulfide clusters stabilize hydrogen as hydride binding to Mo atoms. Density functional theory (DFT) calculations and adsorption measurements suggest that stabilization of hydrogen as sulfhydryl (SH) groups, as typical for layered MoS2, is thermodynamically disfavored. Compet...

Reactivities of Interstitial Hydrides in a Cu11 Template: En Route to Bimetallic Clusters.

Published in Angewandte Chemie (International ed. in English)

In sharp contrast to that of surface hydrides, reactivities on interstitial hydrides are difficult to explore. When treated with a metal ion (Cu + , Ag + , and Au + ), the stable Cu(I) dihydride template [Cu 11 H 2 {S 2 P(O i Pr) 2 } 6 (C≡CPh) 3 ] ( H 2 Cu 11 ) generates surprisingly three very different compounds; namely [CuH 2 Cu 11 {S 2 P(O i Pr...

Isolation and Structural Elucidation of 15-Nuclear Copper Dihydride Clusters: An Intermediate in the Formation of a Two-...

Published in Small (Weinheim an der Bergstrasse, Germany)

Highly reactive copper-dihydride clusters, [Cu15 (H)2 (S2 CNR2 )6 (C2 Ph)6 ](PF6 ) {R = n Bu (1H ), n Pr (2H ), i Bu (3H )}, are isolated during the reaction of [Cu28 H15 {S2 CNn Bu2 }12 ](PF6 ) with ten equivalents of phenylacetylene. They are found to be intermediates in the formation of the earlier reported two-electron superatom [Cu13 (S2 CNR2 ...