Results 51 to 60 of about 1,254 (182)
Standard transition aluminas. Electron microscopy studies
Materials Research, 2000 The aim of this paper is to present the results of characterization of the particle shapes of six standard transition aluminas samples using transmission and scanning electron microscopies; selected area electron diffraction, in parallel with X-ray ...
P. Souza Santos +2 more
doaj +1 more source
Advanced Energy Materials, Volume 16, Issue 10, 11 March 2026.The Aluminum energy storage cycle involves the use of renewable energy for Al production and the generation of heat (dry cycle) and heat and H2 (wet cycle) for energy production via Al‐steam combustion. ABSTRACT Reaching climate neutrality by 2050 requires innovative long‐term energy storage (LTES) solutions beyond the current use of fossil fuels ...
Lorenzo Trombetti +2 more
wiley +1 more source
Hydrological Processes, Volume 40, Issue 3, March 2026.Riverine solute fluxes peak during the wet season, emphasising the role of tropical rainfall in driving nutrient delivery to the ocean. Seasonal peaks in nutrient fluxes highlight the need for longer‐term monitoring to detect potential interannual trends.
Emma Moreau, Marie Boye, Céline Dessert
wiley +1 more source
Revista Brasileira de Ciência do Solo, 2008 A distribuição dos minerais da fração argila depende de condições pedoambientais específicas. O estudo das relações entre atributos desses minerais e locais específicos de sua ocorrência na paisagem torna-se importante para o entendimento das relações ...
Livia Arantes Camargo +3 more
doaj +1 more source
Obtaining of transition phases of alumina starting from sodium aluminate in Bayer process [PDF]
Hemijska Industrija, 2011 Transition (active) phases of alumina were synthesized starting from sodium aluminate solution prepared out of Bayer liquor. The neutralisation of sodium aluminate solution was performed by sulphuric acid.
Obrenović Zoran +4 more
doaj +1 more source
Journal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.Conceptual model of depth‐stratified soil acidification under long‐term no‐till in temperate (Washington, USA) and tropical (Brazilian Oxisol) systems. Nitrogen inputs promote surface acidification (↓pH) and increased Al3+ activity, while lime or silicate amendments modify base cation dynamics. Increased DOC–Al complexation reduces free Al3+ and alters
Joao A. Antonangelo, Richard T. Koenig
wiley +1 more source
Revista Brasileira de Ciência do Solo, 2008 O teor e a forma dos minerais da fração argila são determinantes na definição da morfologia dos agregados do solo. Objetivando estudar a mineralogia da fração argila e as propriedades químicas de diferentes classes de agregados de Latossolos (Latossolo ...
Vander de Freitas Melo +4 more
doaj +1 more source
Soil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.Abstract Phosphorus (P) availability in tropical soils is strongly limited by high adsorption capacity, primarily driven by mineralogical and chemical characteristics. This study aimed to evaluate the influence of soil properties on P sorption kinetics, maximum phosphorus adsorption capacity (MPAC), and P fraction distribution across 17 soil samples ...
Lucas Jónatan Rodrigues da Silva +7 more
wiley +1 more source
European Journal of Soil Science, Volume 77, Issue 2, March–April 2026.ABSTRACT Sodium pyrophosphate (NaPPi) is widely used in wet‐chemical extraction methods for assessing organo‐mineral interactions (OMIs) in soils. However, its effectiveness remains debated due to challenges in achieving specific solubilization and issues such as peptization and solubilization of organic carbon (OC) not directly associated with ...
Francisco Ruiz +5 more
wiley +1 more source
Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.The effect of silica particle size and primary foaming on rhenium (Re) retention was investigated in a simulated high‐level waste melter feed. Despite increased primary foaming, finer silica particles enhanced Re retention due to faster dissolution and higher viscosity of the transient glass‐forming melt.
Matouš Eret +10 more
wiley +1 more source