Tao Yang , Zhuyu Liu , Jiafan Chu, Xueqing Peng, Aiguo Kong
{"title":"用于阴极和阳极过氧化氢电合成的介孔碳掺杂氮化硼","authors":"Tao Yang , Zhuyu Liu , Jiafan Chu, Xueqing Peng, Aiguo Kong","doi":"10.1016/j.carbon.2024.119383","DOIUrl":null,"url":null,"abstract":"<div><p>Mesoporous carbon-doped hexagonal boron nitrides (C-doped BN) with high surface area were prepared by annealing organic resin polymer/silica in NaBH<sub>4</sub> and NaNH<sub>2</sub> inorganic salts, which were found to be efficient metal-free bifunctional electrocatalyst for both 2e<sup>−</sup> ORR and 2e<sup>−</sup> WOR. It could efficiently catalyze 2e<sup>−</sup> ORR to H<sub>2</sub>O<sub>2</sub> in 2 M KHCO<sub>3</sub> (1650 mmol g<sup>−1</sup> h<sup>−1</sup>) with Faraday efficiency of 93–98 % in half reaction, while it was very active for 2e<sup>−</sup> WOR to generate H<sub>2</sub>O<sub>2</sub> in 2 M KHCO<sub>3</sub> with 551 mmol g<sup>−1</sup> h<sup>−1</sup> H<sub>2</sub>O<sub>2</sub> production rate in half reaction. When pairing them in one H-type cell, H<sub>2</sub>O<sub>2</sub> solution could be totally produced over C-doped BN in both anode and cathode cells. The better electron conductivity from sharper band gap caused by carbon doping and higher surface area of 304 m<sup>2</sup> g<sup>−1</sup> contributed to its efficient electrocatalytic activity. The C-doped BN served an effective bifunctional electrocatalyst for 2e<sup>−</sup> ORR and 2e<sup>−</sup> WOR.</p></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":null,"pages":null},"PeriodicalIF":10.5000,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Mesoporous carbon-doped boron nitrides for cathodic and anodic hydrogen peroxide electrosynthesis\",\"authors\":\"Tao Yang , Zhuyu Liu , Jiafan Chu, Xueqing Peng, Aiguo Kong\",\"doi\":\"10.1016/j.carbon.2024.119383\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Mesoporous carbon-doped hexagonal boron nitrides (C-doped BN) with high surface area were prepared by annealing organic resin polymer/silica in NaBH<sub>4</sub> and NaNH<sub>2</sub> inorganic salts, which were found to be efficient metal-free bifunctional electrocatalyst for both 2e<sup>−</sup> ORR and 2e<sup>−</sup> WOR. It could efficiently catalyze 2e<sup>−</sup> ORR to H<sub>2</sub>O<sub>2</sub> in 2 M KHCO<sub>3</sub> (1650 mmol g<sup>−1</sup> h<sup>−1</sup>) with Faraday efficiency of 93–98 % in half reaction, while it was very active for 2e<sup>−</sup> WOR to generate H<sub>2</sub>O<sub>2</sub> in 2 M KHCO<sub>3</sub> with 551 mmol g<sup>−1</sup> h<sup>−1</sup> H<sub>2</sub>O<sub>2</sub> production rate in half reaction. When pairing them in one H-type cell, H<sub>2</sub>O<sub>2</sub> solution could be totally produced over C-doped BN in both anode and cathode cells. The better electron conductivity from sharper band gap caused by carbon doping and higher surface area of 304 m<sup>2</sup> g<sup>−1</sup> contributed to its efficient electrocatalytic activity. The C-doped BN served an effective bifunctional electrocatalyst for 2e<sup>−</sup> ORR and 2e<sup>−</sup> WOR.</p></div>\",\"PeriodicalId\":262,\"journal\":{\"name\":\"Carbon\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.5000,\"publicationDate\":\"2024-06-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Carbon\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S000862232400602X\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carbon","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S000862232400602X","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Mesoporous carbon-doped boron nitrides for cathodic and anodic hydrogen peroxide electrosynthesis
Mesoporous carbon-doped hexagonal boron nitrides (C-doped BN) with high surface area were prepared by annealing organic resin polymer/silica in NaBH4 and NaNH2 inorganic salts, which were found to be efficient metal-free bifunctional electrocatalyst for both 2e− ORR and 2e− WOR. It could efficiently catalyze 2e− ORR to H2O2 in 2 M KHCO3 (1650 mmol g−1 h−1) with Faraday efficiency of 93–98 % in half reaction, while it was very active for 2e− WOR to generate H2O2 in 2 M KHCO3 with 551 mmol g−1 h−1 H2O2 production rate in half reaction. When pairing them in one H-type cell, H2O2 solution could be totally produced over C-doped BN in both anode and cathode cells. The better electron conductivity from sharper band gap caused by carbon doping and higher surface area of 304 m2 g−1 contributed to its efficient electrocatalytic activity. The C-doped BN served an effective bifunctional electrocatalyst for 2e− ORR and 2e− WOR.
期刊介绍:
The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.