Effect of citric acid on structure and photochromic properties of WO3–TiO2–ZnO composite films prepared by a sol–gel method

Optical Properties of Hybrid Organic‐Inorganic Materials and their Applications

“…In those reports, organic molecules (EDTA, [229] citric acid, [231] etc.) are used to prevent the uncontrolled precipitation of the inorganic oxides and also act as directing agents, giving to tunable morphologies.…”

Research progress of the preparation of perovskite oxide catalysts and their catalytic performances for soot combustion

“…为了解决上述问题, 一方面研究人员从掺杂元素 及掺杂量方面入手提高钙钛矿氧化物催化剂比表面 积, 如Rousseau等 [36] 通过溶胶-凝胶法制备了一系列Co [38] . 研 究人员常选择不同的络合剂用于钙钛矿氧化物催化剂 的制备, 如Elsiddig等 [39] 选用柠檬酸作为络合剂, 将金 属硝酸盐溶液和柠檬酸均匀混合后经过溶胶-凝胶的 过程成功制备了一系列具有介孔结构的LaMn 1±x O 3 .…”

Improvement of the photochromism taking place on ZnO/MoO3 combined material interfaces

“…The photochromic materials family can be divided into organic compounds, such as spiropyrans, azobenzenes, diarylethenes [1][2][3][4] , and inorganic ones, encompassing transition metal oxides, metal halides or rare earth complexes [5][6][7][8] . For inorganic materials, photochromic phenomena are essentially linked to a photo-induced redox process, but commonly the photochromic contrast remains poor while low power irradiation (equivalent to sun light irradiation in the UV region) is used.…”