BISMUTH NANOSHEET OF WHICH THICKNESS CAN BE CONTROLLED, AND MANUFACTURING METHOD AND USE OF ALLOY THEREOF

摘要

To provide a bismuth nanosheet of which thickness can be controlled, and a manufacturing method of an alloy thereof.SOLUTION: A bismuth nanosheet having thickness of a single atom layer level with thickness of 0.7 nm can be obtained by a method of reduction by a solution using a salt compound of bismuth as a raw material, ethylene glycol ethyl ether as a solvent, and a strong reductive solution such as NaBHor LiBHas a reductant under protection of inert gas, and thickness can be controlled.EFFECT: The bismuth nanosheet exhibits excellent COcatalyst reduction performance, Faraday efficiency generating formic acid by catalyst action on COreaches 98% when over potential is 330 mV, initial over potential is low as 80 mV, stability can be extended as 75 hour and thickness and catalytic performance of the bismuth nanosheet has almost no change and exhibits high stability even when treated at a temperature of 300°C for 4 hour.SELECTED DRAWING: Figure 2