Ceria-based single-atom catalysts present complex electronic structures due to the dynamic electron transfer between the metal atoms and the semiconductor oxide support. Understanding these materials implies retrieving all states in these electronic ensembles, which can be limiting if done via density func...
Å moves to 2.02 Å and 2.04 Å, respectively. Furthermore, based on the actual crystal structure, there are two kinds of Cu-O coordination with different bond distances, including four radial sites (linked to organic ligand, denoted as Cu-O1) and one axial site (linked to...
20. It is reasonable to conjecture that diffusion along metal/ceramic interfaces will be comparable to that along other internal interfaces (e.g., GBs in metals). Yet, metal–oxygen bonds (in
Hydrodeoxygenation is a one-step reaction that involve the hydrogenation of unsaturated carbon followed with the deoxygenation of the carbon-oxygen bond. T... MS Sowe,Masruri,SM Ulfa - 《Iop Conference》 被引量: 0发表: 2019年 Silica-based micro- and mesoporous catalysts for dry reforming of me...
Metal‐free Photocatalysts for the C〩 Bond Oxygenation Reactions Using Oxygen as the Oxidant Direct and selective oxygenation of C-H bonds to C-O bonds is regarded as an effective and atom-economic tool to generate high-valued products. However, th... S Das,Y Zhang,W Schilling - 《Chemsus...
Niobium was produced directly from Nb2O5 using solid oxygen-ion membrane(SOM).In molten flux CaCl2 system,electrolysis voltage is 3.2 V,Nb2O5 pellets preformed and sintered at 1 200 ℃ for 4 h and liquid metal saturated with carbon loaded in zirconia tube act as the cathode and anode,res...
Anodic oxygen evolution reaction (OER) is recognized as kinetic bottleneck in water electrolysis. Transition metal sites with high valence states can accelerate the reaction kinetics to offer highly intrinsic activity, but suffer from thermodynamic forma
tailoring the number of metal-oxygen bonds can be achieved by H2-reduction treatments or other strategy on reducible oxides23,24, whereas often at the cost of destabilizing the catalyst, arousing aggregation of single atoms. Therefore, strategies to regulate the MSI as well as the catalytic perfo...
Figure 16represents EDS of 0.5 wt.% nanocomposites at 40 N load after a run of 800 m. The observed elemental information with weight % is shown in the table (inside the EDS plot). The presence of oxygen indicates oxidation at the surface during sliding wear. ...
In the π system an allylic configuration is found as the result of orbital mixing between the CO 1π, 2π and the metal dπ-band which is manifested experimentally in the observation of an oxygen lone-pair state. In the σ system experimental evidence of equally strong orbital mixing has ...