Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"carbon nitrides"”.
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On new allotropes and nanostructures of carbon nitrides
In the first section of the thesis graphitic carbon nitride was for the first time synthesised using the high-temperature condensation of dicyandiamide (DCDA) – a simple molecular precursor – in a eutectic salt melt of lithium chloride and potassium chloride. The extent of condensation, namely next …
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"Reactive hard templating" : from carbon nitrides to metal nitrides
… scale by classical templating approaches. Metal nitrides are such kind of materials. They are usually produced by the conversion of metals or metal oxides in ammonia flow at high temperature (T > 1000°C), which make the application of classical templating techniques difficult. Graphitic carbon …
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Carbon Nitride as a Heterogeneous Photocatalyst for Organic Transformations
… Ir or Ru metal complexes. In this thesis, carbon nitrides have been introduced as an inexpensive, stable, easy-to-synthesise, scalable and non-toxic heterogeneous photocatalyst. Prior to this work, carbon nitrides have been mostly studied as a photocatalyst for solar fuel productions and …
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Computational Alchemy: The Rational Design of New Superhard Materials
… for hardness is identified and used to show that carbon nitrides are not likely to be harder than diamond.
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Carbon nitride for solar H2 production coupled to organic chemical transformations
… commercial development. In this thesis, carbon nitrides (CNx) have been selected as non-toxic, stable and low-cost photocatalysts. CNx are first introduced as efficient light harvesters, to couple alcohol oxidation with proton reduction, in the presence of a Ni-based molecular catalyst. …
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Hydrothermal and ionothermal carbon structures
… cases, which are all related to the element carbon, the work can be devided into two major topics. At first, the sustainable synthesis of “useful” carbon materials employing the process of hydrothermal carbonisation (HC) is described. In the second part, the synthesis of heteroatom - …
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Photoelectrochemical and Chemoenzymatic Reforming for Sustainable Fuel Production
… semiconductor photocatalysts based on TiO₂, CdS, carbon-nitrides (CNx) and carbon dots (CDs) have been widely used for the photocatalytic reforming (PC reforming) of pre-treated waste substrates to organic products, accompanied with clean hydrogen (H₂) generation. However, these conventional …
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CxNy-materials from supramolecular precursors for “All-Carbon” composite materials
… materials, the class of nitrogen-containing carbons combines non-toxicity and sustainability with outstanding properties. The versatility of this materials class is based on the opportunity to tune electronic and catalytic properties via the nitrogen content and –motifs: This ranges from the …