摘要:
The present invention provides a heterostructure which includes a carbon nanotube covalently linked to at least one nanocrystal. Methods for making such heterostructures, and methods for modifying the physical properties of nanotubes are also provided.
摘要:
The invention provides a method of functionalizing the sidewalls of a plurality of carbon nanotubes with oxygen moieties, the method comprising: exposing a carbon nanotube dispersion to an ozone/oxygen mixture to form a plurality of ozonized carbon nanotubes; and contacting the plurality of ozonized carbon nanotubes with a cleaving agent to form a plurality of sidewall-functionalized carbon nanotubes.
摘要:
The present invention provides a method of differentiating metallic carbon nanotubes from semiconducting carbon nanotubes. The method comprising providing a nanotube dispersion, wherein the nanotube dispersion comprises a plurality of carbon nanotubes, osmium tetroxide, or ruthenium tetroxide, and a solvent; and irradiating the nanotube dispersion with ultraviolet light, wherein the metallic carbon nanotubes are osmylated, or ruthenylated, thereby differentiating the metallic carbon nanotubes from the semiconducting carbon nanotubes.
摘要:
The present invention provides a fused heterostructure comprising a carbon nanotube and at least one nanocrystal, wherein the nanocrystal is attached by a covalent linkage to at least one oxygen moiety on the nanotube, and wherein there is no intermediary linker between the nanotube and the nanocrystal.
摘要:
The invention provides an adduct comprising a carbon nanotube and a transitional metal coordination complex, wherein the metal of the complex is attached by a covalent linkage to at least one oxygen moiety on the nanotube.
摘要:
Nanoscale (less than 100 nm) ferroelectric materials are provided using a facile, largescale, environmentally friendly solid-state reaction. Specifically, the solid-state reaction produces perovskite nanowires, perovskite nanocubes, and/or perovskite nanoparticles which can be employed in numerous electronic applications. The solid-state reaction includes reacting a perovskite precursor, i.e., metal oxalate(s), and a metal oxide nanostructural template in the presence of an alkali salt and a surfactant.
摘要:
The present invention provides a method of producing a crystalline metal sulfide nanostructure. The method comprising: providing a metal precursor solution and providing a sulfur precursor solution; placing a porous membrane between the metal precursor solution and the sulfur precursor solution, wherein metal cations of the metal precursor solution and sulfur ions of the sulfur precursor solution react, thereby producing a crystalline metal sulfide nanostructure, wherein the metal is a transitional metal or a Group IV metal.
摘要:
A single crystalline ternary nanostructure having the formula AxByOz, wherein x ranges from 0.25 to 24, and y ranges from 1.5 to 40, and wherein A and B are independently selected from the group consisting of Ag, Al, As, Au, B, Ba, Br, Ca, Cd, Ce, Cl, Cm, Co, Cr, Cs, Cu, Dy, Er, Eu, F, Fe, Ga, Gd, Ge, Hf, Ho, I, In, Ir, K, La, Li, Lu, Mg, Mn, Mo, Na, Nb, Nd, Ni, Os, P, Pb, Pd, Pr, Pt, Rb, Re, Rh, Ru, S, Sb, Sc, Se, Si, Sm, Sn, Sr, Ta, Tb, Tc, Te, Ti, Ti, Tm, U, V, W, Y, Yb, and Zn, wherein the nanostructure is at least 95% free of defects and/or dislocations.
摘要:
The present invention includes pure single-crystalline metal oxide and metal fluoride nanostructures, and methods of making same. These nanostructures include nanorods and nanoarrays.
摘要:
A low-temperature hydrothermal reaction is provided to generate crystalline perovskite nanotubes such as barium titanate (BaTiO3) and strontium titanate (SrTiO3) that have an outer diameter from about 1 nm to about 500 nm and a length from about 10 nm to about 10 micron. The low-temperature hydrothermal reaction includes the use of a metal oxide nanotube structural template, i.e., precursor. These titanate nanotubes have been characterized by means of X-ray diffraction and transmission electron microscopy, coupled with energy dispersive X-ray analysis and selected area electron diffraction (SAED).
摘要翻译:提供低温水热反应以产生晶体钙钛矿纳米管,例如钛酸钡(BaTiO 3 3)和具有约1的外径的钛酸锶(SrTiO 3 N 3) nm至约500nm,长度为约10nm至约10微米。 低温水热反应包括使用金属氧化物纳米管结构模板,即前体。 这些钛酸盐纳米管已经通过X射线衍射和透射电子显微镜,与能量色散X射线分析和选择区域电子衍射(SAED)相结合来表征。