Electrocatalytic Perchlorate Reduction Using an Oxorhenium Complex Supported on a TiO Reactive Electrochemical Membrane.

An organometallic rhenium catalyst was deposited on a TiO reactive electrochemical membrane (Re/REM) for the electrocatalytic reduction of aqueous ClO to Cl. Results showed increasing ClO reduction upon increasing cathodic potential (i.e.

Evaluation of Dental Students' Skills Acquisition in Endodontics Using a 3D Printed Tooth Model.

Objective: The purpose of this prospective quantitative study was to assess the improvement of skills among pre-clinical dental students who practiced root canal obturation on a 3D-printed tooth model.

Methods: Preclinical students at the dental school (n=145) enrolled in the 2-week endodontic rotation course were invited to participate in the study. Four alphabetically distributed intact groups of first-year students were randomly allocated to either the control or the experimental group that obturated canals of a 3D-printed tooth.

Mechanistic Investigation of Haloacetic Acid Reduction Using Carbon-TiO Composite Reactive Electrochemical Membranes.

Carbon-TiO composite reactive electrochemical membranes (REMs) were studied for adsorption and electrochemical reduction of haloacetic acids (HAAs). Powder activated carbon (PAC) or multiwalled carbon nanotubes (MWCNTs) were used in these composites. Results from flow-through adsorption experiments with dibromoacetic acid (DBAA) as a model HAA were interpreted with a transport model.

Charged Layered Boron Nitride-Nanoflake Membranes for Efficient Ion Separation and Water Purification.

2D layered nanomaterials have attracted considerable attention for their potential for highly efficient separations, among other applications. Here, a 2D lamellar membrane synthesized using hexagonal boron nitride nanoflakes (h-BNF) for highly efficient ion separation is reported. The ion-rejection performance and the water permeance of the membrane as a function of the ionic radius, ion valance, and solution pH are investigated.

Electrochemical Production of Si without Generation of CO Based on the Use of a Dimensionally Stable Anode in Molten CaCl.

The current Si production process is based on the high-temperature (1700 °C) reduction of SiO with carbon that produces large amounts of CO . We report an alternative low-temperature (850 °C) process based on the reduction of SiO in molten CaCl that does not produce CO . It utilizes an anode material (Ti O ) capable of sustained oxygen evolution.