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Open AccessSub-micro- and nano-sized polyethylene terephthalate deconstruction with engineered protein nanopores
The identification or design of biocatalysts to mitigate the accumulation of plastics, including sub-micro- and nano-sized polyethylene terephthalate (nPET), is becoming a global challenge. Here we computation...
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Article
Open AccessCombined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States
Nanoscaled-VPO (vanadium phosphate oxide) catalysts have been prepared on an alumina support with the objective of obtaining crystallites of the active phase with a high surface-to-volume ratio. Since the cata...
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Book
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Article
Representing and describing nanomaterials in predictive nanoinformatics
Engineered nanomaterials (ENMs) enable new and enhanced products and devices in which matter can be controlled at a near-atomic scale (in the range of 1 to 100 nm). However, the unique nanoscale properties tha...
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Article
In situ and Operando Spectroscopies in Photocatalysis: Powerful Techniques for a Better Understanding of the Performance and the Reaction Mechanism
In photocatalysis, a set of elemental steps are involved together at different timescales to govern the overall efficiency of the process. These steps are divided as follow: (1) photon absorption and excitatio...
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Article
Open AccessPET microplastics affect human gut microbiota communities during simulated gastrointestinal digestion, first evidence of plausible polymer biodegradation during human digestion
Microplastics (MPs) are a widely recognized global problem due to their prevalence in natural environments and the food chain. However, the impact of microplastics on human microbiota and their possible biotra...
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Article
Engineering operando methodology: Understanding catalysis in time and space
The term operando was coined at the beginning of this century to gather the growing efforts devoted to establish structure-activity relationships by simultaneously characterizing a catalyst performance and the re...
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Article
Vibrational Spectroscopy of Oxide Overlayers
Transition metal oxide overlayers are an important class of heterogeneous catalysts (sometimes referred to as monolayer catalysts), both for model studies and numerous industrial processes. To determine the mo...
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Book
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Article
Propane Versus Ethane Ammoxidation on Mixed Oxide Catalytic Systems: Influence of the Alkane Structure
Catalysts from three different catalytic systems, Ni–Nb–O, Mo–V–Nb–Te–O and Sb–V–O, have been prepared, characterized, and tested during both ethane and propane ammoxidation reactions, in order to obtain aceto...
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Article
Niobia-Supported Nanoscaled Bulk-NiO Catalysts for the Ammoxidation of Ethane into Acetonitrile
Two series of supported nanoscaled NiO catalysts have been prepared using Nb2O5 supports with different surface areas. NiO nanoparticles interacting with Ni–O–Nb mixed phases are active and selective for ethane a...
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Article
In Situ to Operando Spectroscopy: From Proof of Concept to Industrial Application
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Article
Effect of Mg in Alumina-Supported Sb–V–O Catalysts for the Ammoxidation of Propane into Acrylonitrile
The effect of Mg as dopant on alumina-supported mixed Sb–V oxide catalysts during the ammoxidation of propane reaction is evaluated. The Mg-doped catalyst increases acrylonitrile selectivity compared to the un...
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Article
TIC-09-Mesoporous Niobium-Based Mixed Metal Oxides Containing Mo, V, and Te for Propane Oxidative Dehydrogenation
The novel thermally stable mesoporous multicomponent MNbO x (M = V, Mo, and Te) mixed metal oxides were successfully synthesized by evaporation-induced self-assembly (EISA) empl...
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Article
Propane Oxidative Dehydrogenation on V–Sb/ZrO2 Catalysts
The catalytic properties of V–Sb/ZrO2 and bulk Sb/V catalysts for the oxidative dehydrogenation of propane were studied. Samples were characterized by nitrogen adsorption, temperature-programmed reduction, temper...
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Article
Selective oxidation of methane to methanol and formaldehyde over V2O5/SiO2 catalysts. Role of NO in the gas phase
The role of nitric oxide incorporation into the reaction feed for the partial oxidation of methane to C2-hydrocarbons and C2-oxygenates is evaluated. The addition of NO increases the conversion of methane under a...
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Chapter
Structural Features of Silica-Supported Vanadia Catalysts and Their Relevance in the Selective Oxidation of Methane to Formaldehyde
The direct conversion of methane to formaldehyde and methanol in a single catalytic step in sufficiently high yield is an extremely attractive process for the conversion of natural gas to other useful fuels an...
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Article
Preparation and characterization of a copper(II) compound with a new glycine Schiff base containing an ester function
A new Schiff base was obtained from glycine and ethyl-α-ketocyclopentylcarboxylate. This forms a potassium salt K(Rgly)·H2O, where Rgly=C10H14O4N. From this salt a new copper(II) complex was prepared, Cu(Rgly′)·2...
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Article
Stabilization of cobalt(II) chloro-complexes with the butanediammonium cation
Cobalt(II) chlorocomplexes with empirical formulae (bnH2)2CoCl6·2H2O (1) and (bnH2)2CoCl6 (2), where bnH 2 2+ represents the diprotonated species of putrescine...
