Geographical Location and Palaeogeographic Setting of Studied Sections

Geographical Location and Palaeogeographic Setting of Studied Section

Age Analysis and Biostratigraphic Correlation

Age Analysis and Biostratigraphic Correlatio

Depositional Sequences, Biotic Assemblages and Review on Changhsingian (or Late Changhsingian) Palaeo-Water Depths of Studied Sections

Depositional Sequences, Biotic Assemblages and Review on Changhsingian (or Late Changhsingian) Palaeo-Water Depths of Studied Section

Depositional Sequences, Biotic Assemblages and Review on Changhsingian (or Late Changhsingian) Palaeo-Water Depths of Studied Sections

Depositional Sequences, Biotic Assemblages and Review on Changhsingian (or Late Changhsingian) Palaeo-Water Depths of Studied Section

Activating Cobalt Nanoparticles via the Mott–Schottky Effect in Nitrogen-Rich Carbon Shells for Base-Free Aerobic Oxidation of Alcohols to Esters

Heterogeneous catalysts of inexpensive and reusable transition-metal are attractive alternatives to homogeneous catalysts; the relatively low activity of transition-metal nanoparticles has become the main hurdle for their practical applications. Here, the <i>de novo</i> design of a Mott–Schottky-type heterogeneous catalyst is reported to boost the activity of a transition-metal nanocatalyst through electron transfer at the metal/nitrogen-doped carbon interface. The Mott–Schottky catalyst of nitrogen-rich carbon-coated cobalt nanoparticles (Co@NC) was prepared through direct polycondensation of simple organic molecules and inorganic metal salts in the presence of g-C₃N₄ powder. The Co@NC with controllable nitrogen content and thus tunable Fermi energy and catalytic activity exhibited a high turnover frequency (TOF) value (8.12 mol methyl benzoate mol^–1 Co h^–1) for the direct, base-free, aerobic oxidation of benzyl alcohols to methyl benzoate; this TOF is 30-fold higher than those of the state-of-the-art transition-metal-based nanocatalysts reported in the literature. The presented efficient Mott–Schottky catalyst can trigger the synthesis of a series of alkyl esters and even diesters in high yields