Continuous Reactions in Supercritical Water: A New Route to La2CuO4 with a High Surface Area and Enhanced Oxygen Mobility

Catalytic Oxidation of Carbon Monoxide over Transition Metal Oxides

“…showed that high catalytic activity in CO oxidation can be obtained using optimized synthesis routes to generate higher surface areas. Synthesis by continuous reaction in supercritical water led to a surface area of 19 m 2 g −1 for La 2 CuO 3 , whereas the ceramic method leads to a surface area of only 0.4 m 2 g −1 393. By CO+O 2 pulse reaction, 2.5 times higher activity was obtained on the solid prepared in supercritical water conditions.…”

Continuous hydrothermal synthesis of inorganic materials in a near-critical water flow reactor; the one-step synthesis of nano-particulate Ce1 − xZrxO2 (x = 0–1) solid solutions

“…All experiments were conducted using a simple ¯ow reactor built and designed in Nottingham. 22,23 The reactor, tubing and components were all made of 316 stainless steel (Swagelok). The apparatus (Fig.…”

Supercritical Fluid Synthesis of Metal and Semiconductor Nanomaterials

“…Until recently, high‐temperature SCF approaches for producing nanoscale materials have mostly been conducted in near‐critical or supercritical water (SCW) 25–33. Specifically, Arai and co‐workers have shown that metal nitrates can be decomposed to form a wide variety of metal oxide crystals in SCW 25–28.…”

“…Specifically, Arai and co‐workers have shown that metal nitrates can be decomposed to form a wide variety of metal oxide crystals in SCW 25–28. Poliakoff and co‐workers also demonstrated that metal–organic precursors can be used to obtain metal oxide nanocrystals through a similar mechanism 29–33. Both of these research groups have reported their ability to control the oxidation state of metal nanoparticles formed through the addition of reductants or oxidants into the reaction chamber during particle growth 27, 32.…”