A5030964553- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Electrochemical Analysis and Applications
- Crystallography and molecular interactions
- Catalytic Processes in Materials Science
- Copper-based nanomaterials and applications
- Supercapacitor Materials and Fabrication
- Membrane Separation Technologies
- Advanced Photocatalysis Techniques
- Adsorption and biosorption for pollutant removal
- Covalent Organic Framework Applications
- Perovskite Materials and Applications
- Fuel Cells and Related Materials
- Food, Nutrition, and Cultural Practices
- Industrial Gas Emission Control
- Membrane Separation and Gas Transport
- Metal-Organic Frameworks: Synthesis and Applications
- Advancements in Battery Materials
- Chalcogenide Semiconductor Thin Films
- Multidisciplinary Research Papers Compilation
- Agricultural and Food Production Studies
- ZnO doping and properties
- Ammonia Synthesis and Nitrogen Reduction
Technische Universität Berlin
2018-2023
Pontifical Catholic University of Peru
2015-2018
Yale University
2016
Identifying novel classes of precatalysts for the oxygen evolution reaction (OER by water oxidation) with enhanced catalytic activity and stability is a key strategy to enable chemical energy conversion. The vast space intermetallic phases offers plenty opportunities discover OER electrocatalysts improved performance. Herein we report nickel germanide (NiGe) acting as superior durable Ni-based electro(pre)catalyst OER. It produced from molecular bis(germylene)-Ni precursor. ultra-small NiGe...
In a green energy economy, electrocatalysis is essential for chemical conversion and to produce value added chemicals from regenerative resources. To be widely applicable, an electrocatalyst should comprise the Earth's crust's most abundant elements. The 3d metal, iron, with its multiple accessible redox states has been manifold applied in chemocatalytic processes. However, due low conductivity of Fe
Amorphous CoP outperforms the crystalline phase in OER, HER and overall water splitting with low overpotential remarkable long-term stability.
Abstract A strategy to overcome the unsatisfying catalytic performance and durability of monometallic iron‐based materials for electrochemical oxygen evolution reaction (OER) is provided by heterobimetallic iron–metal systems. Monometallic Fe catalysts show limited mostly due poor conductivity stability. Here, taking advantage structurally ordered highly conducting FeSn 2 nanostructure, first time, an intermetallic iron material employed as efficient anode alkaline OER, overall...
Electrochemical water splitting remains a frontier research topic in the quest to develop artificial photosynthetic systems by using noble metal-free and sustainable catalysts. Herein, highly crystalline CuSe has been employed as active electrodes for overall (OWS) alkaline media. The pure-phase klockmannite deposited on conducting nickel foam (NF) electrophoretic deposition (EPD) displayed an overpotential of merely 297 mV reaction oxygen evolution (OER) at current density 10 mA cm-2...
For the first time, manganese gallide (MnGa
Abstract The low‐temperature molecular precursor approach can be beneficial to conventional solid‐state methods, which require high temperatures and lead relatively large crystalline particles. Herein, a novel, single‐step, room‐temperature preparation of amorphous nickel pnictide (NiE; EP, As) nanomaterials is reported, starting from NaOCE(dioxane) n NiBr 2 (thf) 1.5 . During application for the oxygen evolution reaction (OER), anions leach, both materials fully reconstruct into...
A molecularly derived FeAs has been used as an electro(pre)catalyst for efficient alkaline OER the first time and subsequently, its active structure determined by quasi <italic>in situ</italic> X-ray absorption spectroscopy <italic>ex methods.
Abstract Identifying novel classes of precatalysts for the oxygen evolution reaction (OER by water oxidation) with enhanced catalytic activity and stability is a key strategy to enable chemical energy conversion. The vast space intermetallic phases offers plenty opportunities discover OER electrocatalysts improved performance. Herein we report nickel germanide (NiGe) acting as superior durable Ni‐based electro(pre)catalyst OER. It produced from molecular bis(germylene)‐Ni precursor....
Abstract In the urge of designing noble metal‐free and sustainable electrocatalysts for oxygen evolution reaction (OER), herein, a mineral Digenite Cu 9 S 5 has been prepared from molecular copper(I) precursor, [{(PyHS) 2 I (PyHS)} ](OTf) ( 1 ), utilized as an anode material in electrocatalytic OER first time. A hot injection yielded pure phase highly crystalline , which was then electrophoretically deposited (EPD) on conducting nickel foam (NF) substrate. When assessed electrode OER, /NF...
Abstract Visible light‐driven photocatalytic reduction of protons to H 2 is considered a promising way solar‐to‐chemical energy conversion. Effective transfer the photogenerated electrons and holes surface photocatalyst by minimizing their recombination essential for achieving high activity. In general, sacrificial electron donor used as hole scavenger remove from valence band continuation hydrogen (H ) evolution process. Here, first time, hole‐transfer dynamics Pt‐loaded sol−gel‐prepared...
This paper introduces IrI(CO)2(pyalc) (pyalc = (2-pyridyl)-2-propanoate) as an atom-efficient precursor for Ir-based homogeneous oxidation catalysis. compound was chosen to simplify analysis of the water catalyst species formed by previously reported Cp*IrIII(pyalc)OH precatalyst. Here, we present a comparative study on chemical and catalytic properties these two precursors. Previous studies show that oxidative activation Cp*Ir-based precursors with NaIO4 results in formation blue IrIV...
Abstract The oxygen evolution reaction (OER) through water oxidation is a key process for multiple energy storage technologies required sustainable economy such as the formation of fuel hydrogen from and electricity, or metal‐air batteries. Herein, we investigate suitability Cu 2 FeSnS 4 OER demonstrate its superiority over iron sulfide, (oxy)hydroxides benchmark noble‐metal catalysts in alkaline media. Electrodeposited yields current densities 10 1000 mA/cm at overpotentials merely 228 330...
Abstract Erstmals wurden, in einen intermetallischen Vorläuferansatz, durch In‐situ‐Elektrokonversion von Mangangallid (MnGa 4 ) hochleistungsfähige und langzeitstabile MnO x ‐basierte Elektrokatalysatoren für die Wasseroxidation alkalischem Medium hergestellt. Überraschend führt seine Elektrokorrosion, unter gleichzeitigem Verlust Ga, gleichzeitig zu drei kristallinen Typen ‐Mineralien mit verschiedenen Strukturen induzierten Defekten: Birnessit δ‐MnO 2 , Feitknechtit β‐MnOOH Hausmannit...
Water-resistant MOF-235 was used to adsorb N,N-dimethylamine (DMA) from aqueous solutions. It synthesized terephthalic acid and FeCl3.6H2O under air-free conditions characterized by its crystalline structure, functional groups temperature resistance. The kinetic data results were best adjusted the pseudo-second order model (R2>0.963). best-fit isotherm, Langmuir model, suggested adsorption of DMA is localized on homogenously distributed active sites surface. This fit confirmed value β = 1...