CAS: 13759-83-6; Samarium Nitrate Hexahydrate

专利信息

专利号:US-11718536-B2
优先权日:2020-07-29
标题 :Solvent-free synthesis of lanthanide oxide and mixed lanthanide oxide nanoparticles
发明人：Treadwell LaRico Juan; BREGMAN AVI GABRIEL; RINGGOLD MARISSA
权利人:NAT TECH & ENG SOLUTIONS SANDIA LLC
摘要:Lanthanide oxides and mixed lanthanide oxides can be produced using furnace or microwave assisted solid-state synthesis. The use of Ln-tri(methylsilyl)amide-based precursors yields spherical nanoparticles. The formation of spherical shaped nanoparticles is likely due to the preferential single-step decomposition of the Ln-TMS as well as the low activation energy to overcome decomposition. Reaction temperature, initial metal ion ratio, and reaction dwell time can be used to control the final nanoparticle size. The method enables solvent-free, high-yield synthesis of morphology-controlled lanthanide oxides.

专利号:US-10066169-B2
优先权日:2015-07-14
标 题 :Mesoporous cobalt-metal oxide catalyst for Fischer-Tropsch synthesis reactions and a preparing method thereof
发明人：BAE JONG WOOK; AHN CHANG IL
权利人:RESEARCH & BUSINESS FOUND SUNGKYUNKWAN UNIV
摘要:The present invention relates to a mesoporous cobalt-metal oxide catalyst for the Fischer-Tropsch synthesis and a method of preparing the same. The mesoporous cobalt-metal oxide catalyst for the Fischer-Tropsch synthesis of the present invention can very stably maintain the mesoporous structure even under a H2-rich high-temperature reduction condition and under a reaction condition of the low-temperature Fischer-Tropsch synthesis, easily transport reactants to the active site of the catalyst due to structural stability, and facilitate the release of heavier hydrocarbon products after production thereof. Additionally, unlike the conventional cobalt-based catalysts which are prepared by adding various co-catalysts for the purpose of improving reducibility, activity, selectivity and increasing thermal stability, etc., the mesoporous cobalt-metal oxide catalyst for the Fischer-Tropsch synthesis can constantly maintain conversion and selectivity at high levels without further requiring co-catalysts and thus it can be very effectively used for the Fischer-Tropsch synthesis.

专利号:WO-2024123268-A1
优先权日:2022-12-09
标 题 :Production of silver nanoparticles by green synthesis using hazelnut husk extract
发明人：AKDOGAN OZAN; GUNDUZ AKDOGAN NILAY; SIVRI DAMLA; KUREL ALI
权利人:BAHCESEHIR UNIV; PIRI REIS UNIV
摘要:The invention relates to synthesis of nanoparticles from hazelnut husk extract by green synthesis with high efficiency. Use of chemical is limited in the present invention and therefore the synthesis of nanoparticles is provided by green chemistry in the present invention. Said hazelnut may be Corylus and said hazelnut husk may be cob or shell of the hazelnut. In an embodiment of the invention said Corylus may be Colyrus colurna, Corylus americana Corylus avellana, Corylus avellana var. Avellana, Corylus avellana var. Pontica, Corylus chinensis, Corylus colchica, Corylus × colurnoides, Corylus cornuta, Corylus cornuta ssp. californica, Corylus cornuta ssp. cornuta, Corylus fargesii, Corylus ferox, Corylus ferox var. ferox, Corylus ferox var. thibetica, Corylus heterophylla, Corylus heterophylla var. heterophylla, Corylus heterophylla var. sutchuensis, Corylus jacquemontii, Corylus maxima, Corylus potaninii, Corylus sieboldiana, Corylus sieboldiana var. mandshurica, Corylus sieboldiana var. sieboldiana, Corylus wangii, Corylus wulingensis or Corylus yunnanensis.

专利号:US-2023226527-A1
优先权日:2020-11-03
标 题 :Synthesis of high surface area, high entropy oxides
发明人：CHOU STANLEY SHIHYAO; RILEY CHRISTOPHER RYAN; DATYE ABHAYA; DE LA RIVA ANDREW
权利人:NAT TECH & ENG SOLUTIONS SANDIA LLC; UNM RAINFOREST INNOVATIONS
摘要:High surface area, high entropy oxides comprising multiple metal cations in a single-phase fluorite lattice material enables intrinsic catalytic activity without platinum group metals, tunable oxygen storage capacity, and thermal stability. These properties can be obtained through a facile sol-gel synthesis to provide a low-temperature route for production of phase-pure multi-cationic oxides. The resulting materials achieved significantly higher surface area and catalytic performance, taking advantage of all the properties endowed by the various cations in the composition.

专利号:US-8759247-B2
优先权日:2011-12-27
标 题 :Methanol electro-oxidation catalyst and method of making the same
发明人：ZAIDI SYED MOHAMMED JAVAID; RAHMAN SALEEM UR; AHMED SHAKEEL; BELLO MUKHTAR
权利人:ZAIDI SYED MOHAMMED JAVAID; RAHMAN SALEEM UR; AHMED SHAKEEL; BELLO MUKHTAR; UNIV KING FAHD PET & MINERALS
摘要:The methanol electro-oxidation catalysts include nano-oxides of rare earth metals (i.e., cesium, praseodymium, neodymium and samarium) and platinum nano-particles. The nano-oxides of the rare earth metals are dispersed during synthesis of a support material, preferably formed from mesoporous carbon. The platinum nano-particles form between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, the rare earth metal forms between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, and carbon and oxygen forming the balance (between about 70 wt % and about 80 wt %) of the methanol electro-oxidation catalyst.

专利号:US-11773046-B2
优先权日:2020-05-11
标题:Solvothermal synthesis of metal alkanoate and metal oxide nanoparticles
发明人：Treadwell LaRico Juan; DAVIS-WHEELER CLARE
权利人:NAT TECH & ENG SOLUTIONS SANDIA LLC
摘要:A facile solvothermal method can be used to synthesize metal alkanoate nanoparticles using a metal nitrate precursor, alcohol/water, and alkanoic acid. The method can produce lanthanide (e.g., La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, or Yb) and transition metal (e.g., Ag, Co, Cu, or Pb) alkanoate nanoparticles (<100 nm) with spherical morphology. These hybrid nanomaterials adopt a lamellar structure consisting of inorganic metal cation layers separated by an alkanoate anion bilayer and exhibit liquid crystalline phases during melting. The metal alkanoate nanoparticles can be calcined to produce metal oxide nanoparticles.