Precise CO2 Reduction for Bilayer Graphene

被引:16
作者
Gong, Peng [1 ,2 ]
Tang, Can [1 ,2 ]
Wang, Boran [4 ]
Xiao, Taishi [1 ,2 ,4 ]
Zhu, Hao [4 ]
Li, Qiaowei [1 ,2 ]
Sun, Zhengzong [1 ,2 ,3 ]
机构
[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
[2] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
[3] Fudan Univ, Yiwu Res Inst, Yiwu 322000, Zhejiang, Peoples R China
[4] Fudan Univ, Sch Microelect, Shanghai 200433, Peoples R China
基金
中国国家自然科学基金;
关键词
CARBON-DIOXIDE; FORMIC-ACID; GROWTH; CO2; ELECTROREDUCTION; SELECTIVITY; CONVERSION; DOMAINS; BANDGAP;
D O I
10.1021/acscentsci.1c01578
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
It is of great significance to explore unique and diverse chemical pathways to convert CO2 into high-value-added products. Bilayer graphene (BLG), with a tunable twist angle and band structure, holds tremendous promise in both fundamental physics and nextgeneration high-performance devices. However, the pi-conjugation and precise two-atom thickness are hindering the selective pathway, through an uncontrolled CO2 reduction and perplexing growth mechanism. Here, we developed a chemical vapor deposition method to catalytically convert CO2 into a high-quality BLG single crystal with a room temperature mobility of 2346 cm2 V-1 s-1. In a finely controlled growth window, the CO2 molecule works as both the carbon source and the oxygen etchant, helping to precisely define the BLG nucleus and set a record growth rate of 300 mu m h-1.
引用
收藏
页码:394 / 401
页数:8
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