Experiments carried out at Oxford Catalysts suggest that it is the preparation method – rather than the identity or combination of metals used – that has the greatest influence on the performance of HDS catalysts.
In a talk to be presented on 9 April at the 235th American Chemical Society Meeting in New Orleans, Louisiana, US, Dr Tiancun Xiao will discuss studies carried out in collaboration with his Oxford Catalyst colleagues, Doctors Sergio Gonzáles-Cortés and Sreekala Rugmini, that demonstrate the improved performance in HDS catalysts created using Oxford Catalysts' patented organic matrix combustion preparation method compared to those containing the same metals but produced using standard impregnation methods.
The group's experiments reveal that monometallic, bimetallic and trimetallic HDS catalysts prepared using organic matrix combustion perform better than HDS catalysts of similar compositions prepared using impregnation methods. But that is not the end of the story.
When comparing the performance of different types of HDS catalysts prepared using the organic matrix method the group found – as expected – that the bimetallic performed better than the monometallic catalysts. However, the performance of the trimetallic catalysts – though still better than that of catalysts prepared via impregnation – was worse than that of the bimetallic catalysts.
Dr Sergio Gonzáles-Cortés, Research Scientist, Oxford Catalysts says:
"This result was a surprise. We don't yet understand why this happens, but we think that it may be due to the strong interaction between cobalt and nickel. This is an exciting area of research for our company!"
Nina Morgan | alfa
Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel
Removing fossil fuel subsidies will not reduce CO2 emissions as much as hoped
08.02.2018 | International Institute for Applied Systems Analysis (IIASA)
A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.
In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...
A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.
By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
23.02.2018 | Physics and Astronomy
23.02.2018 | Health and Medicine
23.02.2018 | Physics and Astronomy