Dmitry E. Doronkin
Karlsruhe Institute of Technology
XANESAnalytical chemistrySelectivityAbsorption spectroscopyAdsorptionNanoparticleSelective catalytic reductionCatalysisInorganic chemistryChemistryMaterials scienceNOxOxidation stateExhaust gasSSZ-13Chemical engineeringPlatinumMetalX-ray absorption spectroscopyPhotochemistry
83Publications
17H-index
956Citations
Publications 85
Newest
#1Minzhi Ma (SWPU: Southwest Petroleum University)H-Index: 2
#2Zeai Huang (SWPU: Southwest Petroleum University)H-Index: 13
Last. Ruiyang Zhang (SWPU: Southwest Petroleum University)H-Index: 12
view all 11 authors...
Cobalt species as active sites for photocatalytic reduction of CO_{2}to valuable products such as methanol have received increasing attention, however, it remains a huge challenge to achieve the high activity. Herein, a pyrolysis-induced-vaporization strategy was successfully employed to fabricate Co/g-C_{3}_{4}single-atom catalysts (Co/g-C_{3}_{4}SACs) with surface Co atom loading up to 24.6 wt%. Systematic investigation of Co/g-C_{3}_{4}SACs formation process disclosed tha...
Source
Source
#1B. Wollak (TUHH: Hamburg University of Technology)
#2Dmitry E. Doronkin (KIT: Karlsruhe Institute of Technology)H-Index: 17
Last. Jan-Dierk Grunwaldt (KIT: Karlsruhe Institute of Technology)H-Index: 78
view all 11 authors...
Abstract null null Efficient and sustainable optimization of heterogeneous catalytic processes requires a deep understanding of catalyst structure-activity relationships that occur inside catalytic reactors in space and time. Here we introduce a catalytic profile reactor capable of simultaneously measuring spatially-resolved temperature, concentration, and X-ray absorption spectroscopy (XAS) profiles through a catalytic fixed bed. Using the oxidative dehydrogenation of ethane to ethylene over Mo...
Source
Source
#1Johannes BecherH-Index: 5
#2Sebastian WeberH-Index: 3
Last. Thomas L. SheppardH-Index: 11
view all 10 authors...
Source
#1Yuehan Cao (SWPU: Southwest Petroleum University)H-Index: 8
#2Lan Guo (SWPU: Southwest Petroleum University)H-Index: 1
Last. Ying Zhou (SWPU: Southwest Petroleum University)H-Index: 52
view all 13 authors...
The surface electron density significantly affects the photocatalytic efficiency, especially the photocatalytic CO2 reduction reaction, which involves multi-electron participation in the conversion process. Herein, we propose a conceptually different mechanism for surface electron density modulation based on the model of Au anchored CdS. We firstly manipulate the direction of electron transfer by regulating the vacancy types of CdS. When electrons accumulate on vacancies instead of single Au ato...
Source
#1Daniel Eggart (KIT: Karlsruhe Institute of Technology)H-Index: 1
#2Anna Zimina (KIT: Karlsruhe Institute of Technology)H-Index: 9
Last. Jan-Dierk Grunwaldt (KIT: Karlsruhe Institute of Technology)H-Index: 78
view all 7 authors...
A modular high-temperature cell consisting of a plug-flow microreactor with a fixed catalyst bed and long heating zone has been established for operando x-ray absorption/fluorescence spectroscopic and diffraction studies. The functionality of the cell is demonstrated for two important areas: emission control using 2 wt. % Pd/Al2O3 acting as a three-way catalyst and direct conversion of methane to olefins and aromatics on a 0.5% Fe/SiO2 catalyst. The performance has been determined by online infr...
Source
#1Benedikt J. Deschner (KIT: Karlsruhe Institute of Technology)H-Index: 3
#2Dmitry E. Doronkin (KIT: Karlsruhe Institute of Technology)H-Index: 17
Last. Roland Dittmeyer (KIT: Karlsruhe Institute of Technology)H-Index: 28
view all 6 authors...
A potentially green process to produce hydrogen peroxide (H2O2) is its direct synthesis from molecular hydrogen and oxygen. Still, the lack of mechanistic understanding of the reaction impedes a kn...
Source
The improvement of the low-temperature activity of the supported platinum catalysts in selective ammonia oxidation to nitrogen is still a challenging task. The recent developments in in situ/operando characterization techniques allows to bring new insight into the properties of the systems in correlation with their catalytic activity. In this work, near ambient pressure X-ray photoelectron spectroscopy (NAP-XPS) and operando X-ray absorption spectroscopy (XAS) techniques were applied to study Pt...
Source
Source
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.