Results 31 to 40 of about 7,660 (299)

Substitution of Ca2+ by Sn2+ and Sr2+ cations in P. placenta shells and single-crystal calcite through ion exchange reactions

Materials Research Express, 2021
Tin (Sn ^2+ ) and strontium (Sr ^2+ ) are potential replacements to lead (Pb ^2+ ) in perovskite synthesis since Sn is on the same IVA group in the periodic table as Pb while Sr is a promising alternative according to Goldschmidt’s rules and quantum ...
Jonathan B Junio, Marlon T Conato, Candy C Mercado   +2 more
doaj   +1 more source

Interaction of Celestine Concentrate and Reagent Grade SrSO4 with Oxalate Solutions [PDF]

Acta Montanistica Slovaca, 2012
The interaction of reagent grade strontium sulphate and celestine concentrate with aqueous solutions of oxalic acid, sodiumoxalate and ammonium oxalate for the production of strontium carbonate were investigated for different oxalate compound:SrSO4 ...
Abdullah Obut
doaj  

Performance and Environmental Evaluation of Stabilized Base Material with Strontium Slag in Low-Volume Road in China

Advances in Civil Engineering, 2019
Strontium slag, a by-product of the strontium carbonate refining industry, has been produced at million tons per year in China. The use of strontium slag in the roads could reduce the demand of virgin materials and help solve the environmental problems ...
Teng Wang, Qiulin Tao, Zhaoxing Xie
doaj   +1 more source

Alveolar bone repair with strontium- containing nanostructured carbonated hydroxyapatite [PDF]

Journal of Applied Oral Science, 2018
Cette étude visait à évaluer la réparation osseuse dans les sockets dentaires de rat après l'implantation d'hydroxyapatite/alginate de sodium carbonaté nanostructuré (CHA) et d'hydroxyapatite/alginate de sodium carbonaté nanostructuré contenant 5 % de microsphères de strontium (SrCHA) comme matériaux de substitution osseuse. Vingt rats mâles Wistar ont
André Boziki Xavier do Carmo, Suelen Cristina Sartoretto, Adriana Terezinha Neves Novellino Alves, José Mauro Granjeiro, Fúlvio Borges Miguel, José de Albuquerque Calasans‐Maia, Mônica Diuana Calasans-Maia   +6 more
openaire   +5 more sources

Catalytic Activity of a Composition Based on Strontium Bismuthate and Bismuth Carbonate at the Exposure to the Light of the Visible Range

International Journal of Chemical Engineering, 2018
This paper presents the results pertaining to studying the properties of the photocatalytically active composition of strontium bismuthate SrBi2.70O5.05, SrBi2.90O5.35, and SrBi3.25O5.88 and bismuth carbonate (BiO)2CO3 in molar ratios 1/0.67, 1/0.56, and
K. S. Makarevich, A. V. Zaitsev, O. I. Kaminsky, E. A. Kirichenko, I. A. Astapov   +4 more
doaj   +1 more source

Carbonate of strontium anchored at the edge of graphite

Nuclear Materials and Energy, 2023
With the continuous growth of the fourth-generation nuclear reactor, the oxidation of irradiated graphite (i-graphite) has become a great concern worldwide in recent years, not only for the far-reaching significance in the treatment of i-graphite waste ...
Wei Zhang, Hongwei Zhu, Zelin Gao, Taowei Wang, Wendurina, Gang Xu, Shu-Xian Hu, Xiaotong Chen, Bing Liu, Yaping Tang   +9 more
doaj   +1 more source

Selective extraction of strontium with supercritical fluid carbon dioxide [PDF]

Chemical Communications, 1999
Strontium (Sr(2+)) can be selectively extracted from aqueous solutions into supercritical fluid CO(2) at 60 °C and 100 atm with dicyclohexano-18-crown-6 (DC18C6) using CF(3)(CF(2))(6)CO(2) (-) (PFOA(-)) or CF(3)(CF(2))(6)CF(2)SO(3) (-) (PFOSA(-)) as a counter anion; at a mole ratio of Sr(2+) : DC18C6 : PFOA(-) = 1:10:50, the extraction of Sr (5.6 × 10(-
Chien M, Wai, Yurii, Kulyako, Hwa-Kwang, Yak, Xiaoyuan, Chen, Suh-Jane, Lee   +4 more
openaire   +2 more sources

Effects of atmospheric CO2 consumption on rock weathering in the Pearl River basin, China [PDF]

E3S Web of Conferences, 2019
Atmospheric CO2 is absorbed and dissolved in water via karst processes not only in carbonate rock areas, but in all rock areas of the earth. The chemical and isotopic analysis results, particularly of strontium, for water samples collected from eleven ...
Qin Xiaoqun, Jiang Zhongcheng, Zhang Liankai, Huang Qibo, Liu Pengyu   +4 more
doaj   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Magnetic Materials Enriched with Strontium: a Study of the use as Catalysts in the Transesterification Reaction of Babassu Oil [PDF]

Materials Research
This work described a new magnetic material enriched with strontium as catalyst to produce babassu biodiesel. The use of magnetic materials has attracted attention due to easy and fast separation from reaction medium.
Wiury Chaves de Abreu, Ana Flávia Moraes, Roberta Yonara Nascimento Reis, Bernardo Ferreira Pinto, Carla Verônica Rodarte de Moura, Sabrina Nicolodi, Edmilson Miranda de Moura   +6 more
doaj   +2 more sources