Colloidal Nanocrystals as Electrocatalysts with Tunable Activity and Selectivity

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High deuteration yields are difficult to attain with conventional chemical synthesis methods. In this work, we demonstrate that deuterated chemicals can be produced using electrochemical CO2 reduction in the presence of D2O. The absence of H2O enables deut ...

Iron-nitrogen-carbon (FeNC) electrocatalysts are emerging as a low-cost alternative to Pt-based materials for electrochemical oxygen reduction at the cathode of alkaline exchange membrane hydrogen fuel cells. The valorisation of waste biomass is a sustaina ...

Metal-porphyrins are studied intensively due their potential applications, deriving from the variety of electronic and chemical properties, tunable by selecting metal centers and functional groups. Metalation, de- and trans-metalation processes are fundame ...

The short de Broglie wavelength and strong interaction empower free electrons to probe structures and excitations in materials and biomolecules. Recently, electron-photon interactions have enabled new optical manipulation schemes for electron beams. In thi ...

Platinum group metal-free catalysts (e.g., Fe-N-C and Co-N-C) are used as hydrogen peroxide reduction reaction (PRR) catalysts in direct borohydride fuel cells (DBFCs). Fe-N-C is more active in the PRR and demonstrates high performance at the beginning of ...

The invention relates to a method for converting a polymer into hydrocarbon compounds, comprising the steps of a. contacting the polymer with a catalyst to provide a reaction mixture, wherein the polymer contains nitrogen in the polymer backbone, wherein t ...

Oxidation of graphitic materials has been studied for more than a century to synthesize materials such as graphene oxide, nanoporous graphene, and to cut or unzip carbon nanotubes. However, the understanding of the early stages of oxidation is limited to t ...

In this study, we report results of the interaction of titanium (Ti) with human synovial fluids. A wide palette of electrochemical techniques was used, including open circuit potential, potentiodynamic methods, and electrochemical impedance. After the elec ...

Micro-compression tests were carried out on pillars of 60 mu m in diameter, milled by plasma focused ion beam in porous Yttria-Stabilized Zirconia (YSZ) pellets. The fracture properties were determined over a wide range of porosities (33 %-63 %) for 8YSZ a ...

The amphiphilic chemical structure of native lignin, composed by a hydrophobic aromatic core and hydrophilic hydroxy groups, makes it a promising alternative for the development of bio-based surface-active compounds. However, the severe conditions traditio ...

Carboxymethyl cellulose/copper oxide-nickel oxide (CMC/CuO-NiO) nanocomposite beads were prepared by facile, simple and environmentally friendlymethod. Initially, CuO-NiOwas prepared and applied for the catalytic reduction of 4-nitrophenol (4-NP). The resu ...

The hydrogen evolution reaction (HER) is a pivotal process for renewable energy storage devices. Improving the intrinsically catalytic activity of earth-abundant metals based electrocatalysts for HER is still a huge challenge. Herein, we put forward a dual ...

Metallic electrodes based on iron, nickel, and/or cobalt have re-emerged as promising cost-effective anodes for the alkaline oxygen evolution reaction (OER) due to their simplicity and their in situ formation of a highly active oxy-hydroxide surface cataly ...

The EspB protein of Mycobacterium tuberculosis is a 60 kDa virulence factor, implicated in conjugation and exported by the ESX-1 system of which it may also be a component. Previous attempts to obtain high-resolution maps of EspB by cryo-electron microscop ...

A straightforward and general way for monitoring chemical reactions is via their thermal signature. Such approach requires however an experimental setup with a high thermal stability that simultaneously allows time-resolved heat detection with high sensiti ...

Colloidal Nanocrystals as Electrocatalysts with Tunable Activity and Selectivity

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Advancing the Synthesis for Perdeuterated Small Organic Chemicals via Electrochemical CO2 Reduction

Inducing porosity in xylose-derived FeNC electrocatalysts for alkaline oxygen reduction

Stabilization versus competing de-metalation, trans-metalation and (cyclo)-dehydrogenation of Pd porphyrins at a copper surface

Free-electron interaction with nonlinear optical states in microresonators

All Platinum Group Metal-Free and Durable Catalysts for Direct Borohydride Fuel Cells

Method for converting nitrogen-containing polymers into hydrocarbon compounds

Structure Evolution of Graphitic Surface upon Oxidation: Insights by Scanning Tunneling Microscopy

The Electrochemical Behavior of Ti in Human Synovial Fluids

Fracture properties of porous yttria-stabilized zirconia under micro-compression testing

Extraction and Surfactant Properties of Glyoxylic Acid-Functionalized Lignin

Carboxymethyl cellulose nanocomposite beads as super-efficient catalyst for the reduction of organic and inorganic pollutants

Dual anions engineering on nickel cobalt-based catalyst for optimal hydrogen evolution electrocatalysis

Influence of Composition on Performance in Metallic Iron-Nickel-Cobalt Ternary Anodes for Alkaline Water Electrolysis

High resolution CryoEM structure of the ring-shaped virulence factor EspB from Mycobacterium tuberculosis

Nanocalorimetric platform for accurate thermochemical studies in microliter volumes

Imaging and microscopy in linear and nonlinear media using digital holography

Energy loss magnetic chiral dichroism: A new technique for the study of magnetic properties in the electron microscope