4 results about "Electrochemical capacitance" patented technology

The layered material (1a) has a layer (10). The layer (10) has a main body (11) and a terminal (12). The main body (11) has M1 (1‑a)m M2 am X n The composition. In this composition, M1 and M2 are different atoms selected from Ti, Sc, Y, La, Zr and Hf. X contains at least one of carbon and nitrogen atoms. a is greater than 0 and less than 1. n is greater than 1 and less than 4. m is greater than n and less than 5. Terminal (12) is present on the surface of the body (11).

Described herein are electrochemical capacitive biosensors, methods of making same, and methods of using same. The electrochemical capacitive biosensors are especially useful for detecting pathogens, including viruses, bacteria, and allergens, in aerosols and complex biological media.

A composite comprises vertically aligned carbon nanotubes (VACNT) on a substrate and additional disordered carbon deposited on the outer face of the nanotubes. This additional carbon is not amorphous but comprises graphitic domains. This composite can be prepared by a chemical vapor deposition (CVD) process in the presence of a catalyst on a metal substrate at atmospheric pressure. It can be used as an electrode in electronic and electrotechnical devices, such as supercapacitors.

The disclosed electrochemical capacitor has a pair of electrodes and an electrolyte. At least one of the pair of electrodes includes a current collector and an active layer disposed on a surface of the current collector. The active layer includes activated carbon and a dispersant. The activated carbon includes a first metal. The ratio of the first metal in the activated carbon is 10 ppm or more on a mass basis. The dispersant includes at least one selected from the group consisting of carboxyalkyl cellulose and an ammonium salt of carboxyalkyl cellulose.