Author
Klaus Schlichte
Bio: Klaus Schlichte is an academic researcher from Max Planck Society. The author has contributed to research in topics: Nitride & Magnesium. The author has an hindex of 22, co-authored 49 publications receiving 3271 citations.
Papers published on a yearly basis
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TL;DR: The catalytic properties of the metal-organic framework compound Cu 3 (BTC) 2 (H 2 O) 3 ǫ x H 2 O (BTC=benzene 1,3,5-tricarboxylate) were explored in this article.
981 citations
282 citations
TL;DR: In this paper, a satisfactory agreement between experimental and calculated enthalpy and entropy values for the formation of MgH2 is achieved; systematic deviations are found only at higher temperatures (∼480°C) and experimental determination of PCIs (absorption and desorption mode) has been carried out in the temperature range 403-520°C, using Mg powders of different origin and particle size.
269 citations
TL;DR: In this paper, the features and possibilities of the Mg-based metal hydride systems Mg/MgH2, Mg−Ni−Mg2NiH4 and Mg −Co−H are discussed.
231 citations
TL;DR: Fe(2)O(3)/CMK-5 showed the highest ammonia decomposition activity of all previously described Fe-based catalysts in this reaction and the presence of a thin layer of carbon is essential for increased catalytic activity.
Abstract: Uniform and highly dispersed γ-Fe2O3 nanoparticles with a diameter of ∼6 nm supported on CMK-5 carbons and C/SBA-15 composites were prepared via simple impregnation and thermal treatment. The nanostructures of these materials were characterized by XRD, Mossbauer spectroscopy, XPS, SEM, TEM, and nitrogen sorption. Due to the confinement effect of the mesoporous ordered matrices, γ-Fe2O3 nanoparticles were fully immobilized within the channels of the supports. Even at high Fe-loadings (up to about 12 wt %) on CMK-5 carbon no iron species were detected on the external surface of the carbon support by XPS analysis and electron microscopy. Fe2O3/CMK-5 showed the highest ammonia decomposition activity of all previously described Fe-based catalysts in this reaction. Complete ammonia decomposition was achieved at 700 °C and space velocities as high as 60 000 cm3 gcat−1 h−1. At a space velocity of 7500 cm3 gcat−1 h−1, complete ammonia conversion was maintained at 600 °C for 20 h. After the reaction, the immobilize...
230 citations
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TL;DR: Metal-organic frameworks are porous materials that have potential for applications such as gas storage and separation, as well as catalysis, and methods are being developed for making nanocrystals and supercrystals of MOFs for their incorporation into devices.
Abstract: Crystalline metal-organic frameworks (MOFs) are formed by reticular synthesis, which creates strong bonds between inorganic and organic units. Careful selection of MOF constituents can yield crystals of ultrahigh porosity and high thermal and chemical stability. These characteristics allow the interior of MOFs to be chemically altered for use in gas separation, gas storage, and catalysis, among other applications. The precision commonly exercised in their chemical modification and the ability to expand their metrics without changing the underlying topology have not been achieved with other solids. MOFs whose chemical composition and shape of building units can be multiply varied within a particular structure already exist and may lead to materials that offer a synergistic combination of properties.
10,934 citations
TL;DR: A critical review of the emerging field of MOF-based catalysis is presented and examples of catalysis by homogeneous catalysts incorporated as framework struts or cavity modifiers are presented.
Abstract: A critical review of the emerging field of MOF-based catalysis is presented. Discussed are examples of: (a) opportunistic catalysis with metal nodes, (b) designed catalysis with framework nodes, (c) catalysis by homogeneous catalysts incorporated as framework struts, (d) catalysis by MOF-encapsulated molecular species, (e) catalysis by metal-free organic struts or cavity modifiers, and (f) catalysis by MOF-encapsulated clusters (66 references).
7,010 citations
TL;DR: The state-of-the-art on hybrid porous solids, their advantages, their new routes of synthesis, the structural concepts useful for their 'design', aiming at reaching very large pores are presented.
Abstract: This critical review will be of interest to the experts in porous solids (including catalysis), but also solid state chemists and physicists. It presents the state-of-the-art on hybrid porous solids, their advantages, their new routes of synthesis, the structural concepts useful for their ‘design’, aiming at reaching very large pores. Their dynamic properties and the possibility of predicting their structure are described. The large tunability of the pore size leads to unprecedented properties and applications. They concern adsorption of species, storage and delivery and the physical properties of the dense phases. (323 references)
5,187 citations
TL;DR: In conclusion, MOFs as Host Matrices or Nanometric Reaction Cavities should not be considered as a source of concern in the determination of MOFs’ properties in relation to other materials.
Abstract: 2.2. MOFs with Metal Active Sites 4614 2.2.1. Early Studies 4614 2.2.2. Hydrogenation Reactions 4618 2.2.3. Oxidation of Organic Substrates 4620 2.2.4. CO Oxidation to CO2 4626 2.2.5. Phototocatalysis by MOFs 4627 2.2.6. Carbonyl Cyanosilylation 4630 2.2.7. Hydrodesulfurization 4631 2.2.8. Other Reactions 4632 2.3. MOFs with Reactive Functional Groups 4634 2.4. MOFs as Host Matrices or Nanometric Reaction Cavities 4636
3,106 citations
TL;DR: A review of metal hydrides on properties including hydrogen-storage capacity, kinetics, cyclic behavior, toxicity, pressure and thermal response is presented in this article, where a group of Mg-based hydride stand as promising candidate for competitive hydrogen storage with reversible hydrogen capacity up to 7.6 W% for on-board applications.
2,890 citations