Inorganic nanotubes formation through the synergic evolution of dynamic templates and metallophosphates: from vesicles to nanotubes

Abstract

A novel synergic evolution of dynamic assembly, from vesicles to nanotubes, between the metallophosphates and organic amines, is disclosed, by which the multicomponent metallophosphate (Cu(2)(OH)PO(4)) nanotubes are synthesized for the first time.

Trimetallic (Co/Ni/Cu) Hydroxyphosphate Nanosheet Array as Efficient and Durable Electrocatalyst for Oxygen Evolution Reaction

“…The synthesis route of trimetallic (Co/Ni/Cu) hydroxyphosphate nanosheet array OER electrocatalyst is schematized in Figure . For the typical synthesis of the proposed CoNi-CuHP/NF electrocatalyst, first, according to our previous work, the copper hydroxyphosphate (CuHP) precursor was prepared in advance by stirring a mixture of organoamines (including dodecylamine and hexadecylamine), CuCl 2 , and NH 4 H 2 PO 4 during which the CuHP initially formed. The Ni doped CuHP nanosheet array was hydrothermally grown on the Ni foam by putting the Ni foam into the copper hydroxyphosphate precursor solution in a hydrothermal reactor at 120 °C for a period.…”

“…First, the transition metal hydroxyphosphates are generally much more stable than the corresponding transition-metal phosphates in alkaline electrolyte. Hence, the copper hydroxyphosphate with good ion-exchanging ability reported by our previous work is chosen as the skeleton . Additionally, the poor intrinsic electrical conductivity and the tendency to aggregate of the transition metal phosphates during the OER process usually limit the charge transport capability and surface active sites .…”

High performance mesoporous zirconium phosphate for dehydration of xylose to furfural in aqueous-phase

“…The zirconium phosphate was synthesized by hydrothermal method. 40 In a typical synthesis, 24 mL of ethanol solution containing 4.0 g dodecylamine (J & K Technology Co., Ltd.) and 0.50 g hexadecylamine (J & K Technology Co., Ltd.) was pumped slowly (0.25 mL min À1 ) into 80 mL of aqueous solution containing zirconium nitrate pentahydrate (Sinopharm Chemical Reagent Co. Ltd, 3.0 g) and ammonium dihydrogen-phosphate (Nanjing Chemical Reagent Co., Ltd., 1.03 g) at 40 C. The mixture was transferred into a Teon-lined autoclave and sealed before hydrothermally heating in an oven at 180 C for 8 h, and then cooled down and centrifuged to obtain the solid product.…”

“…The catalysts include TiO 2 /CB (carbon black), 37 mesoporous (zirconium, aluminium)tungsten, 35 and aluminosilicates. 9 Considering both Lewis and Brønsted acidity in the zirconium phosphate 39 and based on our previous work on morphology controlled synthesis of metal phosphates, 40 a convenient route to mesoporous zirconium phosphate has been developed in this work. The zirconium phosphate obtained through hydrothermal method with mixed amines as templates at high temperature (180 C) has large surface area and mesoporous structure.…”

Long-chain amine-templated synthesis of gallium sulfide and gallium selenide nanotubes

“…27 Usually, long-chain amines are utilized as a template for the growth of hybrid nanotubes due to their ability for selfassembly, arising from the combination of a strongly-polar amino group and a non-polar long hydrocarbon chain. 28 Aromatic and short-chain amines have been successfully utilized for the soft-chemistry preparation of different gallium chalcogenide superstructures, usually forming crystalline frameworks composed of layers, chains or even helical tubes with interesting properties such as high surface area, or ion exchange capability. [29][30][31][32][33] However, to the best of our knowledge, the ability of long-chain amines to direct the growth of 1D nanostructures in the gallium/chalcogens system has never been studied and still remains an important challenge in the field.…”