1. College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P.R. China
2. Collaborative Innovation Center of Chemistry for Energy Materials; Xiamen University; Xiamen 361005 P.R. China
3. National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters; Xiamen University; Xiamen 361005 P.R. China
4. Voiland School of Chemical Engineering and Bioengineering; Washington State University; Pullman WA 99164 USA