The Sb-Pt "Inverted Pyramid" in D0-Type PtSb for Highly Efficient pH-Universal HER Catalysis.

We synthesized high-crystalline PtSb nanocrystals (NCs) via a hot-injection method (D0-type tetragonal PtSb, hexagonal PtSb, and cubic PtSb). The PtSb NCs exhibited isotropic microstrains (ε = ε = 0.022, ε = 0.

Mg(Al, Fe, Mn, REE)O Spinel Prepared from Pelagic REE-Rich Clays and Application as Magnesium-Ion-Battery Cathodes.

The oxidation and lattice distortion of spinel oxides used for magnesium-ion battery (MIB) cathodes lead to poor stability and cycling performance. Herein, the highly inverted spinel oxide Mg(Al, Fe, Mn, REE)O of = 0.62 with incorporated rare-earth elements (REE) and decent specific surface area was prepared by utilizing leachate of the pelagic rare-earth-rich clays via a foamed sol-gel/calcination method.

Amino-functionalized mesoporous silica modified glassy carbon electrode for ultra-trace copper(II) determination.

This paper described a facile and direct electrochemical method for the determination of ultra-trace Cu(2+) by employing amino-functionalized mesoporous silica (NH2-MCM-41) as enhanced sensing platform. NH2-MCM-41 was prepared by using a post-grafting process and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and fourier transform infrared (FTIR) spectroscopy. NH2-MCM-41 modified glassy carbon (GC) electrode showed higher sensitivity for anodic stripping voltammetric (ASV) detection of Cu(2+) than that of MCM-41 modified one.