A5091290589- Fuel Cells and Related Materials
- Membrane-based Ion Separation Techniques
- Catalysts for Methane Reforming
- Nanopore and Nanochannel Transport Studies
- Membrane Separation and Gas Transport
- Catalytic Processes in Materials Science
- CO2 Reduction Techniques and Catalysts
- Ammonia Synthesis and Nitrogen Reduction
- Membrane Separation Technologies
- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Ionic liquids properties and applications
- Conducting polymers and applications
- Catalysis and Hydrodesulfurization Studies
- Hydrogen Storage and Materials
- Anaerobic Digestion and Biogas Production
- Microfluidic and Capillary Electrophoresis Applications
- Advancements in Solid Oxide Fuel Cells
- Hybrid Renewable Energy Systems
- Petroleum Processing and Analysis
- Metal-Organic Frameworks: Synthesis and Applications
- Industrial Gas Emission Control
Aarhus University
2016-2025
Worcester Polytechnic Institute
2011-2013
University of Bologna
2009-2012
Abstract A nitrogen‐stabilized single‐atom catalyst containing low‐valence zinc atoms (Zn δ+ ‐NC) is reported. It contains saturated four‐coordinate (Zn‐N 4 ) and unsaturated three‐coordinate 3 sites. The latter makes Zn a state, as deduced from X‐ray photoelectron spectroscopy, absorption electron paramagnetic resonance, density functional theory. ‐NC catalyzes electrochemical reduction of CO 2 to with near‐unity selectivity in water at an overpotential low 310 mV. current up 1 cm −2 can be...
Abstract Recently, a large number of nanostructured metal‐containing materials have been developed for the electrochemical CO 2 reduction reaction (eCO RR). However, it remains challenge to achieve high activity and selectivity with respect metal load due limited concentration surface atoms. Here, is reported that bismuth‐based metal–organic framework Bi(1,3,5‐tris(4‐carboxyphenyl)benzene), herein denoted Bi(btb), works as precatalyst undergoes structural rearrangement at reducing potentials...
Scaling of steel surfaces, prevalent in various industrial applications, results significant operational inefficiencies and maintenance costs. Inspired by the natural hydrophobicity springtail (Collembola) skin, which employs micro- nanostructures to repel water, we investigate application silicone nanofilaments (SNFs) as a coating on surfaces mitigate scaling. Silicone nanofilaments, previously successful polymers, textiles, glass, are explored for their hydrophobic properties stability...
A method to count the number of electrons accumulated in carbon nitride green radicals using a methylviologen redox indicator is reported.
In this work, we investigate using carbon dioxide (CO2) as an inexpensive reaction medium during the photocatalytic oxidative coupling of primary amines to corresponding imines. As a model system, study benzylamines in acetonitrile over potassium poly(heptazine imide) photocatalyst (K-PHI). We use CO2 or argon (Ar) saturate solution and reactor headspace, blue light (461 nm) drive reaction. When compared more expensive Ar, boosts conversion rate by creating intermediate with better electron...
The pyrolysis of ZIF-67 is followed in situ , and the conditions are correlated with structural evolution electrocatalytic performance.
Composite palladium and Pd-based membranes represent an appealing technology option to increase the CO conversion H2 recovery in water–gas shift (WGS) reactor as a result of continuous removal hydrogen over course reaction. Even though many studies have been performed this area, their outcome typically represents proof-of-concept involving reactors with small membrane area. The present study therefore addresses scaling up process obtain high production rates through use large surface ∼0.02...
The synthesis, characterization, and electrokinetic energy conversion performance have been investigated experimentally in a charged polymeric membrane based on blend of nitrocellulose sulfonated polystyrene. is characterized by moderate ion exchange capacity relatively porous structure with average pore diameter 11 nm. With conversion, pressure can be converted directly into electric vice versa. From the transport properties, remarkably large intrinsic maximum efficiency 46% found. It...
The electrokinetic energy conversion (EKEC) of hydraulic work directly into electrical has been investigated in charged polymeric membranes with different pore charge densities and characteristic diameters the nanoporous network. were synthesized from blends nitrocellulose sulfonated polystyrene (SPS) comprehensively characterized respect to structure, composition, transport properties. It is shown that SPS can be used as a sacrificial generation medium tune size membrane porosity, which...
Fourier transform infrared–attenuated total reflectance (FTIR-ATR) spectroscopy was used to study in detail water vapor sorption a short-side-chain perfluorosulfonic acid ionomer membrane suitable for use as electrolyte proton exchange membranes fuel cells. The analysis of the IR spectra, at different values relative humidity (0.00–0.50) and 35 °C, allows identify four types molecules, characterized by decreasing strength interaction with polymer sulfonate groups. actual concentration...
It is of paramount importance to operate redox flow batteries (RFB) at high power densities in order minimize the stack and associated costs. With published data from our recent study [J. Mater. Chem. A, 5, 21875 (2017)], cell potential semi-organic, quinone-based RFB, was increased 0.86 1.3 V by operating it differential pH mode. The RFB uses bromine ∼2 on positive side anthraquinone-2,7-disulfonate disodium (Na2AQDS) operated ∼ 8 negative side. In present work we have evaluated how...
Solid residue from hydrothermal liquefaction (HTL) of nutrient rich feedstock presents a promising source to recover valuable nutrients, such as phosphorus, in the solid form. The present work shows for first time potential utilizing waste remaining after nutrients extraction HTL sewage sludge, renewable adsorbents. A parametric study was undertaken investigate influence chemical activation conditions (temperature, residence time, agent loading, washing activation) on raw and partially...
The study maps out the dependence of porosity, bismuth-to-carbon ratio and chemical stability bismuth-based MOFs on electrocatalytic CO 2 reduction.