2results about How to "Fast desorption rate" patented technology

The application discloses a preparation method and application of a ZrTiO4 single-atom catalyst rich in oxygen vacancies, and belongs to the technical field of hydrogen storage materials and preparation thereof. (SA) The ZrTiO4 single-atom catalyst rich in oxygen vacancies is Y / ZrTiO4 catalyst, and a preparation method thereof takes the precursors of Zr and Ti as raw materials, constructs a ZrTiO4 carrier rich in oxygen vacancies through reduction treatment, and introduces monodispersed Y single atoms by using an in-situ anchoring strategy.The obtained catalyst has rich oxygen vacancies and stable Y-O coordination structures, constructs high-density active sites and effectively regulates the electronic structure of the active sites.The catalyst is compounded with sodium cyanide and aluminum to prepare a composite hydrogen storage system, can catalyze the synthesis of sodium aluminum hydride at low temperature, effectively stores hydrogen, and realizes low-temperature and high-efficiency hydrogen release of the hydrogen storage system.

The utility model discloses a kind of soil pollution sampling device, it is related to soil sampling technical field, including sampling cylinder, the soil cavity of columnar is formed in it, the top area of the soil cavity is equipped with several multidirectional airflow passage;Elasticity cylinder, coaxial sleeve is set in the soil cavity, its bottom end and top outer edge are fixedly connected in the inner wall of soil cavity, unfixed wall constitutes half-suspended covering part and airflow passage export end opposite, form the dynamic gap adjustment area between covering part and the inner wall of soil cavity.The utility model passes through the gap wall folding extrusion of elasticity cylinder top wall and inner side wall by cross centripetal airflow field drive, by extrusion thrust directional effect in the residual soil in gap, the residual of gap dead angle that traditional device is difficult to handle can be targetedly removed, solve the problem that wet soil is retained solidification in gap due to viscosity, ensure that there is no hidden residual when sample soil is taken out, improve sampling integrity;The peristalsis effect of the utility model elasticity cylinder under the action of airflow.