Teacher Wang Liqun, School of Physics, 威斯尼斯人615cc棋牌published in "Nature Communications" entitled "Facilitation Two-Electron Oxygen Reduction 威斯尼斯人615cc棋牌with Pyrrolic Nitrogen Sites for ElectroCheMical Hydr Ogen Peroxide Production "Research Article， Put forward a new idea for developing high -performance hydrogen peroxide carbon -based catalysts。

As an important chemical raw material, hydrogen peroxide (H₂O₂) has been widely used in medical treatment、 Textiles and sewage treatment and other fields。此外，H₂O₂ It is also considered a new energy carrier with great potential， It is expected to play an important role in the futu威斯尼斯人615cc棋牌re clean energy field。然而，H₂O₂ Industrial production mainly depends on 蒽醌， It has many problems such as high energy and high pollution。 Electro -catalytic two electronic oxygen reducing (2E⁻ -orr) path synthesis H₂O₂ Not only high energy utilization rate， You can also achieve distributed preparation， It has reached higher economic benefits。 In recent years，2e⁻ -ORR has attracted more and more attention， Development of high -performance catalysts have also become a research hot威斯尼斯人615cc棋牌spot in this field。 in 2E⁻ -ORR catalyst field， pyrina nitrogen is considered a high -selective configuration。然而， Because pyrrole nitrogen only exists in the defects and edges of the carbon base， This greatly limits its proportion in a variety of nitrogen -backedale， Therefore, the development of related high -performance catalysts is obstructed。

In view of this， Teacher Wang Liqun, our college and Professor Liang Yan of Tianjin University、 Associate Professor Hou Feng， a威斯尼斯人615cc棋牌nd researcher Yin Lichang, Institute of Metal Research Institute of the Chinese Academy of Sciences， By introducing a large number of holes structure and defects， Provide a richer doping environment for pyrro nitrogen， Therefore, a high -proportion doping on the carbon base is realized。 The developed graphene -doped graphene interlative carbon composite material developed by developed carbon composite materials showed excellent 2E⁻ -ORR performance， So the study of 威斯尼斯人615cc棋牌related high -performance catalysts proposes a new development idea。

Test results of micro -structure and chemical environment show that the catalysts made under the best conditions achieve a maximum of 50%pyri nitrogen doping ratio。 The results of electrochemical testing show that: the carbon -based catalytic materials of Fenpin nitrogen have a very high 2E⁻ -ORR activity and selectivity。 Specific， in −0. 6 v vs. Under the test potential of RHE, reach 30 mol g⁻¹h⁻¹的H₂O₂产率， At 威斯尼斯人615cc棋牌the same time, 80%of Faraday efficiency。 long -term test of 24H can accumulate 7. 2 l⁻¹的H₂O₂。此外， The repetitiveness of this material、 Stability and other aspects also show excellent performance (Figure 1)。 The theoretical research results show that: biopyl nitrogen activity center is better than graphite nitrogen、 Pyridine nitrogen and monopy nitrogen will have a smaller reaction potential (thermodynamic result)。 and the two electronic reactions of the dual -py威斯尼斯人615cc棋牌ja nitrogen activity center can be far lower than the four electronic reactions， to show higher catalytic performance (dynamic results) (Figure 2)。

Figure 1 Material 2E⁻ -orr catalytic performance

Figure 2 Different configuration 2E⁻ -RrR activity theoretical calculation results

近期， The work is based on the title of " 威斯尼斯人615cc棋牌Published in "Nature Communications" (https: // Doi. ORG/10. 1038/s41467-023-40118-y)。 The work is by Teacher Wang Liqun of our college and 威斯尼斯人615cc棋牌Professor Liang Yan of Tianjin University、 Professor Hou Feng， and Researcher Yin Lichang, Institute of Metal Research Institute of the Chinese Academy of Sciences, completed， Tianjin Normal University is the second communication unit。