2results about How to "Wide condition" patented technology

This invention discloses a functionalized MXene-supported metal oxide catalytic material, its preparation method, and its applications. The preparation method includes: fully contacting a pretreated metal substrate with a liquid-phase system containing MXene and metal ions and reacting at high temperature, followed by annealing in air to obtain the MXene-supported metal oxide material; and then subjecting it to electrochemical or chemical treatment to obtain the functionalized MXene-supported metal oxide catalytic material. In the functionalized MXene-supported metal oxide catalytic material of this invention, electron transfer occurs between the functionalized MXene and the metal oxide, promoting the formation of more active sites in the metal oxide that are conducive to catalyst-reactant electron exchange, thereby improving the activity of the oxygen evolution reaction (OER). Simultaneously, the functionalized MXene has abundant surface groups, which can generate strong chemical interactions with the metal oxide, improving the stability of the metal oxide in acidic media.

The invention relates to the technical field of flexible sensor preparation, and discloses a preparation method and application of a ZIF-8-based flexible pressure sensor with a wide linear range. According to the flexible sensor provided by the invention, a sensing solution with high sensitivity and a wide linear range is realized through an innovative design of growing a metal organic framework (MOF) compound. The preparation method comprises the following steps: immersing the cotton fabric in a carbon nanotube dispersion liquid to obtain a carbon nanotube conductive fabric, and immersing the obtained conductive fabric in a ZIF-8 growth solution to obtain the flexible pressure sensor based on ZIF-8. The sensor has the advantages of high sensitivity, wide linear range, quick response and good stability and repeatability, can be applied to the fields of gesture recognition and intelligent control, intelligent health monitoring, environment monitoring and the like, and has a wide application prospect.