About the Authors

Xiong Liping

helijia666@163.com

Affiliation School of Basic Science, East China Jiaotong University, Nanchang, Jiangxi, China

He Zhongyi

Affiliations School of Basic Science, East China Jiaotong University, Nanchang, Jiangxi, China, PetroChina Lanzhou Lubricating Oil R&D Institute, Lanzhou, China

Qian Liang

Affiliation School of Basic Science, East China Jiaotong University, Nanchang, Jiangxi, China

Mu Lin

Affiliation School of Basic Science, East China Jiaotong University, Nanchang, Jiangxi, China

Chen Aixi

Affiliation School of Basic Science, East China Jiaotong University, Nanchang, Jiangxi, China

Han Sheng

Affiliation Shanghai Institute of Technology, Shanghai, Shanghai, China

Qiu Jianwei

Affiliation PetroChina Lanzhou Lubricating Oil R&D Institute, Lanzhou, China

Fu Xisheng

Affiliation PetroChina Lanzhou Lubricating Oil R&D Institute, Lanzhou, China

Competing Interests

Authors QJ and FX are employees of PetroChina Lanzhou Lubricating Oil R & D Institute. There are no patents, products in development or marketed products to declare. This does not alter the authors′ adherence to all the PLOS ONE policies on sharing data and materials.