Directly deposit your sample onto the Nano-Reactor
Loading the sample onto the MEMS based sample carrier called the Nano-Reactor, is easy and fast to perform. Catalyst nanoparticles are typically in powder form and are prepared in an ethanol solution for direct drop casting onto the Nano-Reactor’s electron transparent windows.
Two key innovations allow the Nano-Reactor to optimize EDS data collection: (1) By removing material around the electronically transparent window in the chip on the EDS, a larger collection angle for X-ray detection can be achieved. Tilting the holder 20-30° in the a direction increases the EDS count rate significantly. (2) The thin film in the center of the EDS on-chip improves the signal-to-noise ratio, resulting in higher resolution images and elemental distribution maps.
The unique construction of the Nano-Reactor can withstand pressures up to 2 bar. In combination with the gas supply system, the impulse software allows the user to quickly switch between different gases and programmed experimental processes.
The Nano-Reactor chip's miniature heater is based on the proven and advanced DENSsolutions MEMS technology, which provides superior performance in terms of temperature accuracy, reliability and stability. The miniature heaters are encapsulated in inert SiNx to ensure that the heater metal does not interact with gases or samples. The four-probe method monitors and quickly adjusts the temperature based on user input values and gas interactions, ensuring stable and controlled sample temperatures.
Another feature of the four-probe miniature heater is the ability to accurately monitor heat uptake and heat consumption during internal adsorption and exothermic reactions. Both the resistance and power consumption of the microheater are displayed in real time at ultra-high resolution, allowing critical changes in sample dynamics to be identified. This data can be indicative of catalyst activity, thus providing robust conformational relationships.
If you want to know more about our products, please contact us.
