Selective cleavage of inert chemical bonds in biomass for green hydrogen and aryl compounds Yang Li Jiaotong University, China The fossil resource is exhausting accompanying with CO2 emission during the utilization. Non-food biomass is one of the largest renewable resources on the earth, which consist of cellulose, hemicellulose and lignin. Efficient utilization of biomass can afford green hydrogen and aryl compounds. However, large amounts of inert C–C bonds, C–H bonds and C–O bonds contained in the biomass make the utilization very challenging. The classic studies on the utilization of biomass related with harsh conditions at about 300–1400 °C or above than 374 °C and 22.1 MPa. Most chemical bonds were broken at the same time. The mixture of H2, CO, CO2 and CH4 were generated, and with the destroyed aromatic unit. In this talk, selective cleavage of C-C bonds, C-H bonds and C-O bonds for green hydrogen and aryl compounds will be presented. References 1. Zhang, P.; Guo, Y.-J.; Chen, J.; Zhao, Y.-R.; Chang, J.; Junge, H; Beller, M.*; Li, Y.* Nat. Catal. 2018, 1, 332. 2. Guo, Y.-J.; Li, S-J.; Sun, Y.-L.; Wang, L.; Zhang, W.-M.; Zhang, P.; Lan, Y.*; Li, Y.* Green Chem. 2021, 23, 7041.
3. Wang, S.-F.; Cao, X.-P.*; Li, Y.* Angew. Chem. Int. Ed. 2017, 56, 13809. 4. Tan, F.-F.; He, X.-Y.; Tian, W.-F.; Li, Y.* Nat. Commun. 2020, 11, 6126.
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