3 results about "Ammonium tartrate" patented technology

The invention discloses an aqueous zinc ion battery electrolyte, a preparation method and an aqueous zinc ion battery thereof, and belongs to the technical field of aqueous zinc ion batteries. The aqueous zinc ion battery electrolyte comprises deionized water, soluble zinc salt and an additive ammonium tartrate. Tartaric acid anions can be preferentially adsorbed on the surface of zinc to drive ammonium radicals to form a double-layer structure so as to block contact between zinc and water. In addition, anions and cations form an acid-base buffer pair, the pH of the electrolyte can be adjusted, meanwhile, a zinc ion solvation structure is optimized, and a stable hydrogen bond network is constructed to maintain the stability of the electrolyte. Therefore, when the aqueous zinc ion battery electrolyte is applied to a battery, a dendritic crystal phenomenon caused by hydrogen evolution, corrosion and non-uniform zinc ion deposition of a zinc negative electrode in the electrolyte can be effectively inhibited, the cycle life of the battery is prolonged, and the coulombic efficiency and the high-temperature stability of the battery are improved.

This invention relates to the field of bioengineering technology, and proposes a culture medium and method for cultivating gametophytes of *Bryophytum pumilus*. The spore culture medium for *Bryophytum pumilus* gametophytes comprises the following components: MgSO4·7H2O 250 mg / L, KH2PO4 250 mg / L, FeSO4·4H2O 12.5 mg / L, KNO3 1010 mg / L, ammonium tartrate 921 mg / L, CaCl2·2H2O 147 mg / L, and glucose 5000 mg / L. Through the above technical solution, this invention can achieve the formation and propagation of *Bryophytum pumilus* gametophytes in a short time, providing a feasible approach for the cultivation and subculturing of *Bryophytum pumilus*, and providing seed material and propagation technology for using mosses in environmental remediation and landscaping.

The application discloses a perovskite solar cell based on trimethylsilyl methanesulfonate modification and a preparation method thereof. The cell comprises an anode substrate, an electron transport layer, a buried bottom interface modification layer, a perovskite light absorption layer, a top interface modification layer, a hole transport layer and a cathode layer. The electron transport layer is SnO2 modified by ammonium tartrate (AT) and nitric acid (HNO3), and the perovskite light absorption layer is CsPbI2Br. Trimethylsilyl methanesulfonate (TMSEs) is used as the buried bottom interface modification layer to modify the interface between the SnO2 electron transport layer and the CsPbI2Br perovskite light absorption layer, to construct a molecular bridge on the interface, to passivate the defects of the SnO2 / CsPbI2Br interface, to inhibit the non-radiative recombination of the interface, and to improve the room-temperature black-phase stability of the CsPbI2Br perovskite film, thereby improving the performance of the perovskite solar cell device. The method has low cost, is simple and easy to operate, is suitable for the preparation of large-scale perovskite solar cells, and has important research and application values.