操纵锡化佩洛夫斯基特的结晶,以有效地将水分转化为电力
Abinash Tiwari1, Sumit Kumar Sharma1, Aditya Borah2
1Centre for Research in Nanotechnology and Science, Indian Institute of Technology, Bombay 400076, India.
ACS applied materials & interfaces
|July 9, 2024
概括
研究人员开发了一种锡矿系统,用于将水分转化为电力. 这种新的设备从湿度中产生电力,成功点亮绿色LED,展示了低能耗电子产品的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 能源转换 能源转换
- 佩洛夫斯基特的结晶化
背景情况:
- 控制薄膜中矿结晶对于设备制造至关重要.
- 基于锡的矿从溶液中快速结晶,与矿相比带来了挑战.
- 硫酸二甲基 (DMSO) 用于减缓锡矿结晶,以获得最佳的太阳能电池性能.
研究的目的:
- 研究基矿膜的制造,用于将水分转化为电力.
- 探索溶剂选择 (DMSO与DMF) 在矿阶段形成中的作用.
- 为了证明一个双相锡矿系统从湿度中获取能源的潜力.
主要方法:
- 使用基于DMSO和二甲基形式胺 (DMF) 的溶液制造锡矿膜.
- 由此产生的矿相 (SnBr4(DMSO) 2,MABr和MA2SnBr6) 的表征.
- 使用双相系统制造和测试一种将水分转化为电力的装置.
主要成果:
- 一个基于DMSO的溶液产生了一个双相系统 (SnBr4(DMSO) 2和MABr),而DMF则产生了MA2SnBr6.6.
- 两相系统在应对湿度变化时表现出显著的功率输出.
- 该设备在85%的RH下实现了520mV的开放电路潜力和30.625μA/cm2的短路电流密度.
- 该设备可以充电电容器并为绿色LED供电,证明了可扩展性.
结论:
- 双相锡矿系统有效地将水分转化为电力.
- 脚手架 (MABr) 的存在对于发电至关重要,与空位订制的双矿不同.
- 这些设备显示出使用环境湿度为低能耗电子设备供电的前景.
相关概念视频
03:00Electrolysis
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
01:21DC Battery
A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
01:17Controlled-Potential Coulometry: Electrolytic Methods
Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential is precisely regulated using a potentiostat. Platinum working electrodes are utilized for positive potentials, while mercury pool electrodes are favored for extremely negative potentials. The platinum counter electrode is separated from the analyte using a membrane or salt bridge to avoid interference in the analysis.
The chosen potential ensures...
The chosen potential ensures...
01:27Controlled-Current Coulometry: Overview
Controlled current coulometry, also known as amperostatic coulometry, is a technique used in electrochemical analysis to measure the quantity of a substance through the controlled passage of current. It involves the application of a constant current to an electrochemical cell containing the analyte of interest. As the current flows through the cell, the analyte undergoes a redox reaction at the electrode surface, resulting in a charge transfer. By monitoring the time required for a certain...
01:28Electrochemical Cells
Electrochemical cells are systems that convert chemical energy into electrical energy or use electrical energy to drive chemical reactions. They consist of two electrodes in contact with an electrolyte, where redox reactions enable electron transfer. Most electrochemical cells include two half-cells connected by an external wire for electron flow and a salt bridge for ion flow. The salt bridge contains an electrolyte solution and maintains charge neutrality by allowing ions—not electrons—to...
01:30Control of Power Flow
There are several methods to control power flow in power systems: