Author Correction: Economical biogas direct methanation to pipeline grade natural gas via structured Ni based inverse catalyst

X Xin Tang X Xincheng Zhang Z Ziyu Song C Chuqiao Song Y Yao Xu (Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering) X Xuguang Yang Y Yuanchang Wang H Hanfeng Lu S Siyu Yao (Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering) Z Zuwei Liao X Xiaonian Li D Ding Ma L Lili Lin (State Key Laboratory of Green Chemical Synthesis and Conversion, College of Chemical Engineering)