作者：Nan Wei1,2, Lianghao Yu1, Zhongti Sun1, Yingze Song1, Menglei Wang1, Zhengnan Tian1, Yu Xia3, Jingsheng Cai1, Ya-yun Li3, Liang Zhao1, Qiucheng Li1, Mark H. Rümmeli1, Jingyu Sun1,2, & Zhongfan Liu1,2,4
单位：1. College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Jiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, P. R. China
2. Beijing Graphene Institute (BGI), Beijing 100095, P. R. China
3. Shenzhen Key Laboratory of Special Functional Materials & Shenzhen Engineering Laboratory for Advance Technology of Ceramics, Shenzhen University, Shenzhen 518060, P. R. China
4. Center for Nanochemistry (CNC), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
摘要：Mass production of graphene powders affording high quality and environmental benignancy serves as a prerequisite for the practical usage of graphene in multiple energy storage applications. Herein, we exploit a salt-templated CVD approach to harness the direct synthesis of nitrogen-doped graphene (NG) nanosheets and related ink dispersions in a scalable, safe, efficient and green fashion. Thus-fabricated NG accompanying large productivity, excellent electrical conductivity and favorable solution processability possess implications in printable energy storage devices. With the NG-based ink in hand, self-standing 3D architectures with programmable patterns can be directly printed over a myriad of substrates. Accordingly, both electrode preparation for flexible supercapacitors and separator modification in Li–S batteries can be enabled via printing by employing our NG-based composite inks. This work thus represents a practical route for mass production of graphene inks with cost-effectiveness and eco-friendliness for emerging energy storage technology.