Category: Scientific papers

Water based processing of LiFePO4/C cathode material for Li-ion batteries utilizing freeze granulation Jessica Orlenius, O. Lyckfeldt, Keivan Amiri Kasvayee, P. Johander Abstract A water based solid state synthesis of LiFePO 4 has been conducted by utilizing freeze granulation. Various processing conditions were tested and achieved powder properties were characterized by density, XRD, specific surface… Continue reading Water based processing of LiFePO4/C cathode material for Li-ion batteries utilizing freeze granulation

Influence of Porosity on Performance of Freeze-granulated Fe2O3/Al2O3 Oxygen Carriers Used for Chemical Looping Combustion Yi Zhang, A. Rubel, Sameh Mehrez, J. Neathery, Kunlei Liu Abstract Chemical looping combustion (CLC) is a promising solution for the next coal-fired power generation technology with inherent CO2 separation capability. One of the critical aspects for the development of… Continue reading Influence of Porosity on Performance of Freeze-granulated Fe2O3/Al2O3 Oxygen Carriers Used for Chemical Looping Combustion

Assembled Carbon Nanostructure Prepared by Spray Freeze Drying for Si-Based Anodes Wanxiong Zhu, Liewen Guo, Kairan Li, Mengxue Shen, Chang Lu, Zipeng Jiang, Huaihe Song, Ang Li Abstract Silicon-based materials provide a new pathway to break through the energy storage limits of battery systems but their industrialization process is still constrained by inherent diffusion hysteresis… Continue reading Assembled Carbon Nanostructure Prepared by Spray Freeze Drying for Si-Based Anodes

Li2TiO3 pebble fabrication by freeze granulation & freeze drying method A. Shrivastava, T. Kumar, Riddhi Shukla, P. Chaudhuri Abstract Lithium titanate (Li2TiO3) ceramic is one of the candidate tritium breeding material for fusion reactor. Li2TiO3 in the form of spherical pebbles are kept inside the canisters of the fusion blanket. Prior to pebble fabrication, Li2TiO3… Continue reading Li2TiO3 pebble fabrication by freeze granulation & freeze drying method

Designing highly porous amorphous celecoxib particles by spray freeze drying leads to accelerated drug absorption in-vivo D. Lucas, Jan Kožák, Annika Rautenberg, C. Chrétien, Y. Pellequer, A. Lamprecht Abstract Poorly water-soluble drugs are still a major challenge to overcome in order to achieve sufficiently high oral bioavailability. Spray freeze drying (SFD) is proposed here as… Continue reading Designing highly porous amorphous celecoxib particles by spray freeze drying leads to accelerated drug absorption in-vivo

Preparation of UO2 – PuO2 MOX fuel by freeze granulation or slip casting F. L. Lumia, L. Ramond, C. Pagnoux, G. Bernard-Granger Abstract The current production of MOX fuels is carried out by a dry process, involving steps with fine powders (grinding, mixing, pressing). In order to limit dust dissemination in glove boxes and have… Continue reading Preparation of UO2 – PuO2 MOX fuel by freeze granulation or slip casting

Controlling Mannitol Polymorphism for Enhanced Dispersibility in Spray Freeze-Dried Inhalable Microparticles Lorena Pasero, Andrea Silenzi, Adamo Sulpizi, Tomaso Guidi and Roberto Pisano Abstract Spray freeze-drying (SFD) is a novel technique for formulating dry powders, particularly for pulmonary drug delivery via dry powder inhalers (DPIs). Despite their low density and excellent aerodynamic properties, such powders are… Continue reading Controlling Mannitol Polymorphism for Enhanced Dispersibility in Spray Freeze-Dried Inhalable Microparticles

Systematic investigation of thermal process parameters on the morphology of spray-freeze-dried powders Annika Rautenberg, José Ignacio Vázquez-Olvera, Paul Bühlbecker, Alf Lamprecht Abstract Hypothesis: During spray freeze drying (SFD), vitrification, recrystallization, and polymorphic transitions govern particle morphology and mechanical integrity. We hypothesize that with control over freezing temperature, annealing relative to the glass transition of the maximally freeze-concentrated matrix… Continue reading Systematic investigation of thermal process parameters on the morphology of spray-freeze-dried powders

Correlation analysis of granulation condition, granule properties and green density of alumina ceramics fabricated by spray freeze granulation drying Ying Chung, Naoki Kondo, Ken’ichiro Kita, Mikinori Hotta, Junichi Tatami, Shinya Kawaguchi Abstract A scalable nitrogen‑free granulator that enables freezing temperature to be tuned as a process variable for powder granulation was used to fabricate alumina granules, and the obtained granules were further fabricated into green bodies… Continue reading Correlation analysis of granulation condition, granule properties and green density of alumina ceramics fabricated by spray freeze granulation drying

Preparation and characterization of alumina granules via tumbling and agitation granulation Naoki Kondo, Akihiro Shimamura, Mikinori Hotta Abstract Granulation of alumina powder was performed, and the characteristics of the resulting granules and the sintered bodies produced from them were evaluated. The granulation processes were conducted under the following conditions: hand sieving (HS), sieving using a… Continue reading Preparation and characterization of alumina granules via tumbling and agitation granulation