摘要:
An organic/inorganic hybrid material (OIHM) that consists of elementary spherical particles is described, whereby each of said spherical particles consists of a mesostructured matrix that is based on silicon oxide and organic groups with reactive terminal groups that are linked covalently to the inorganic structure, whereby said mesostructured matrix has a pore size of between 1.5 and 30 nm and has amorphous walls with a thickness of between 1 and 20 nm. Said elementary spherical particles have a maximum diameter of 10 μm. The matrix that is based on silicon oxide can contain aluminum, titanium, zirconium and cerium. Two methods for preparation of said material are also described.
摘要:
Material with hierarchical and organized porosity in the microporosity and mesoporosity domains, consisting of at least two elementary spherical particles, each one of said particles comprising a matrix based on silicon oxide, mesostructured, having a mesopore diameter ranging between 1.5 and 30 nm and exhibiting microporous and crystallized walls of thickness ranging between 1 and 60 nm, said elementary spherical particles having a maximum diameter of 200 microns. The preparation of said material is also described.
摘要:
Material with hierarchical porosity consisting of at least two elementary spherical particles, each one of said particles comprising a matrix based on silicon oxide, mesostructured, having a mesopore diameter ranging between 1.5 and 30 nm and exhibiting amorphous and microporous walls of thickness ranging between 1.5 and 50 nm, said elementary spherical particles having a maximum diameter of 200 microns. The matrix based on silicon oxide can contain aluminium. The preparation of said material is also described.
摘要:
Material with hierarchical porosity consisting of at least two elementary spherical particles, each one of said particles comprising a matrix based on silicon oxide, mesostructured, having a mesopore diameter ranging between 1.5 and 30 nm and exhibiting amorphous and microporous walls of thickness ranging between 1.5 and 50 nm, said elementary spherical particles having a maximum diameter of 200 microns. The matrix based on silicon oxide can contain aluminium. The preparation of said material is also described.
摘要:
Material with hierarchical and organized porosity in the microporosity and mesoporosity domains, consisting of at least two elementary spherical particles, each one of said particles comprising a matrix based on silicon oxide, mesostructured, having a mesopore diameter ranging between 1.5 and 30 nm and exhibiting microporous and crystallized walls of thickness ranging between 1 and 60 nm, said elementary spherical particles having a maximum diameter of 200 microns. The preparation of said material is also described.
摘要:
The invention relates to a nanostructured porous oxyfluoride film deposited onto a substrate, to a method for its production, and also to various applications.The oxyfluoride has a porous semicrystalline structure and a refractive index of 1.08 to 1.25, measured in the visible range for a relative humidity level below 80%. Its chemical composition corresponds to the formula (Mg(1−x)Cax)(1−y)MyF(2+(n−2)y−2z−t)Oz (OH)tM′w in which n is the valency of M, n being 1 to 4, M represents at least one element chosen from Al, Si, Ge and Ga, M′ represents at least one element chosen from the group composed of Co, Cr, Ni, Fe, Cu, Sb, Ag, Pd, Cd, Au, Sn, Pb, Ce, Nd, Pr, Eu, Yb, Tb, Dy, Er and Gd, and 0≦w 0 and t
摘要翻译:本发明涉及沉积在基底上的纳米结构多孔氟氧化物膜,其生产方法以及各种应用。 氟氧化物具有多孔半晶体结构,折射率为1.08至1.25,在相对湿度低于80%的可见范围内测量。 其化学成分对应于式(Mg(1-x)Cax)(1-y)MyF(2+(n-2)y-2z-t)Oz(OH)tM'w,其中n为 M,n为1至4,M表示选自Al,Si,Ge和Ga中的至少一种元素,M'表示选自Co,Cr,Ni,Fe,Cu,Sb,Ag ,Pd,Cd,Au,Sn,Pb,Ce,Nd,Pr,Eu,Yb,Tb,Dy,Er和Gd,0 <= w <0.1; 0 <= x <= 1; 0 <= y <= 0.5; z <1; z + t> 0和t <2。
摘要:
An inorganic material that consists of at least two elementary spherical particles, each of said spherical particles comprising metal nanoparticles that are between 1 and 300 nm in size and a mesostructured matrix with an oxide base of at least one element X that is selected from the group that consists of aluminum, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium is described, whereby said matrix has a pore size of between 1.5 and 30 nm and has amorphous walls with a thickness of between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 μm. Said material can also contain zeolitic nanocrystals that are trapped within said mesostructured matrix.
摘要:
A mesostructured aluminosilicate material is described, constituted by at least two spherical elementary particles, each of said spherical particles being constituted by a matrix based on silicon oxide and aluminium oxide, having a pore size in the range 1.5 to 30 nm, a Si/Al molar ratio of at least 1, having amorphous walls with a thickness in the range 1 to 20 nm, said spherical elementary particles having a maximum diameter of 10 μm. A process for preparing said material and its application in the fields of refining and petrochemistry are also described.
摘要翻译:描述了由至少两个球形基本粒子构成的介孔结构的硅铝酸盐材料,每个所述球形颗粒由基于氧化硅和氧化铝的基体构成,孔径在1.5至30nm的范围内,Si / Al 摩尔比至少为1,具有厚度在1至20nm范围内的非晶壁,所述球形基本颗粒的最大直径为10μm。 还描述了制备所述材料的方法及其在精炼和石油化学领域的应用。
摘要:
A mesostructured material that consists of at least two elementary spherical particles, each of said particles comprising a mesostructured matrix based on aluminum oxide and having a pore size of between 1.5 and 30 nm, an aluminum oxide content that represents more than 46% by weight relative to the mass of said matrix, which has amorphous walls with a thickness of between 1 and 30 nm and whereby said elementary spherical particles have a maximum diameter of 10 μm, is described. Said mesostructured matrix can also contain silicon oxide. Each of the spherical particles of the mesostructured material can also contain zeolitic nanocrystals so as to form a material with a mixed porosity that is both mesostructured and zeolitic in nature. The preparation of said material is also described.
摘要:
An inorganic material that consists of at least two elementary spherical particles, each of said spherical particles comprising metal nanoparticles that are between 1 and 300 nm in size and a mesostructured matrix with an oxide base of at least one element X that is selected from the group that consists of aluminum, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium is described, whereby said matrix has a pore size of between 1.5 and 30 nm and has amorphous walls with a thickness of between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 μm. Said material can also contain zeolitic nanocrystals that are trapped within said mesostructured matrix.