Results 41 to 50 of about 5,205 (220)

Evaluation of the Rb/Sr ratio as an indicator of chemical weathering: a case study from five sedimentary sections in Northeast China

Boreas, EarlyView.
Chemical weathering plays a pivotal role in the Earth's surface material cycle and global climate regulation. It not only facilitates the reconstruction of palaeoclimate characteristics but also provides essential insights into Earth's evolutionary history.
Zhenyu Wei, Yuanyun Xie, Jie Meng, Lei Sun, Chunguo Kang, Yunping Chi, Peng Wu, Haijin Liu, Ruonan Liu, Ruitong Chang   +9 more
wiley   +1 more source

Lysine‐Functionalized Gibbsite Nanoplatelet Dispersions for Nonisocyanate Polyhydroxyurethane Nanocomposites and Translucent Coatings

, 2020
The lysine functionalization of ultrathin γ‐Al(OH)3 single‐crystal nanoplatelets (ly‐gibbsite) having an average thickness below 100 nm and a width ranging between 0.5 and 1.5 µm renders them organophilic and enables their agglomerate‐free dispersion in ...
Burkhardt Pössel, Mülhaupt, Rolf, Rolf Mülhaupt, Pössel, Burkhardt   +3 more
core   +1 more source

Stirred bead mill grinding of gibbsite: Surface and morphological changes [PDF]

, 2007
This paper describes the structural and surface changes in gibbsite subjected to mechanical activation using stirred media mill. During milling, the median particle size decreased from 124 to around 3 μm in 30 min indicating high milling efficiency ...
Alex, T C, Rakesh Kumar, Mehrotra, S P, Kumar, Rakesh, Roy, S K, T.C. Alex, S.K. Roy, S.P. Mehrotra   +7 more
core   +1 more source

Supercritical Fluid‐Based Synthesis of Nanomaterials for Energy Storage Applications: A Pathway Toward High‐Entropy Oxides

Battery Energy, Volume 5, Issue 6, November 2026.
Supercritical fluid (SCF) synthesis offers tunable solvent properties (T > Tc, P > Pc), enabling rapid nucleation, uniform composition, and controlled growth of nanomaterials. This approach facilitates homogeneous multication mixing and entropy stabilization, promoting single‐phase high‐entropy oxides (HEOs) for advanced electrochemical applications ...
Shrikanth G K, Takaaki Tomai, Chetana S, Murthy Muniyappa, Sudhakar Y N, Chandrakantha Bekal, Saraswati Kulkarni, Raghavendra K G, Adarsh Rag S, Manjunath Shetty   +9 more
wiley   +1 more source

Efficient Adsorbent-Desiccant Based on Aluminium Oxide

Applied Sciences, 2021
The review describes the main methods of obtaining hydroxides and aluminium oxides (AO) of various structures from gibbsite. The promising techniques of obtaining AO adsorbents are discussed, namely the technique of thermal activation in the mode of ...
Eugene P. Meshcheryakov, Sergey I. Reshetnikov, Mariya P. Sandu, Alexey S. Knyazev, Irina A. Kurzina   +4 more
doaj   +1 more source

Hydrogen‐Bond Symmetrization in Hydrous Aluminous Silica Enhances Deep‐Mantle Water Cycle

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract (Al, H)‐bearing CaCl2‐type SiO2 serves as a key water carrier in Earth's deep‐water cycle. Evolution of hydrogen‐bond symmetrization in this phase was measured up to 62 GPa and 800 K by synchrotron infrared and Raman spectroscopy, and X‐ray diffraction.
Chaoshuai Zhao, Zhu Mao, Yingxin Yu, Ningyu Sun, Yunhua Fu, Jianbo Zhang, Hanns‐Peter Liermann, Renbiao Tao, Takayuki Ishii   +8 more
wiley   +1 more source

Capacidade máxima de adsorção de fósforo relacionada a formas de ferro e alumínio em solos subtropicais Maximum phosphorus adsorption capacity as related to iron and aluminum forms in subtropical soils

Revista Brasileira de Ciência do Solo, 2010
O P é um dos macronutrientes primários essenciais para a produção vegetal. Apesar de ser o menos absorvido pelas plantas, é o mais utilizado nas adubações nos solos das regiões tropicais e subtropicais úmidas.
Cesar Crispim Vilar, Antonio Carlos Saraiva da Costa, Allan Hoepers, Ivan Granemann de Souza Junior   +3 more
doaj   +1 more source

Detrital zircon ages, Lu‐Hf isotopes of zircon grains, Sr‐Nd isotopes on whole rock and geochemistry of Campanian turbidites in the Eastern Pontides (NE Türkiye): A provenance assessment and Gondwana records

The Depositional Record, Volume 12, Issue 4, September 2026.
These findings confirm that the Campanian‐aged Bozbent Member turbiditic sequence in the Eastern Pontides was deposited in an extensional fore‐arc basin and therefore exhibits the petrographic and geochemical characteristics of passive margin sandstones.
Çiğdem Saydam Eker, Cem Yücel, Abdullah Kaygusuz, Emre Aydınçakır, Youn‐Joong Jeong, Sinan Yılmazer, Kadir Sünnetçi   +6 more
wiley   +1 more source

Thermal decomposition of bauxite minerals: infrared emission spectroscopy of gibbsite, boehmite and diaspore [PDF]

, 2002
Infrared emission spectroscopy has been used to study the dehydroxylation behavior over the temperature range from 200 to 750 degrees Celsius of three major Al-minerals in bauxite: gibbsite (synthetic and natural), boehmite (synthetic and natural) and ...
Frost, R. L., Ruan, Huada D., Ruan, H. D., Kloprogge, J. T., Kloprogge, J. Theo, Frost, Ray L.   +5 more
core   +1 more source

Decoupling of Dissolved and Colloidal Export Across the Hydrograph of an Early Pedogenic Stage Critical Zone Observatory

Hydrological Processes, Volume 40, Issue 9, September 2026.
Sampling strategy, analytical methods, and main results of this study of dissolved and colloidal export during an irrigation experiment of basaltic hillslopes at the experimental facility of the Landscape Evolution Observatory. ABSTRACT This study investigates colloid transport under early weathering conditions using the Landscape Evolution Observatory
M. Gelin, J. Bouchez, M. Tharaud, C. J. Cunningham, J. Chorover, M. F. Benedetti   +5 more
wiley   +1 more source