Electrochemical Upcycling of Waste Cement: High-Performance Cement Production and Air Carbon Dioxide Removal

Jiaqi Li | 21-ERD-050

Executive Summary

We will develop an electrochemical method to capture air carbon dioxide, while generating hydrogen gas and valuable byproducts, by dissolving waste cement. This research will have broad application to clean energy and climate security by consuming the solid waste generated during construction, producing low-carbon cement, and reducing the cost of hydrogen production and carbon capture.

Publications, Presentations, and Patents

Li, Jiaqi, Ke Xu, Guoqing Geng, and Harris E. Mason. 2022. "Determine the Coordination of Al and Si of Fe-rich Fly Ash: The Challenge in NMR and How We Probe its Heterogeneity Using X-Ray Spectromicroscopy." Cement and Concrete Research 161 2022: 106947.

Li, Jiaqi, Wenxin Zhang, Paula Sanz-Camacho, Mathieu Duttine, David Gardner, Carlo Carraro, Roya Maboudian, and Thomas Huthwelker. 2022. "The Nanomechanical Properties of Non-crosslinked Calcium Aluminosilicate Hydrate: The influences of Tetrahedral Al and Curing Age." Cement and Concrete Research 159 2022: 106900.

Li, Chen, Jiaqi Li, Qiang Ren, Yankun Zhao, and Zhengwu Jiang. 2022. "Degradation Mechanism of Blended Cement Pastes in Sulfate-bearing Environments under Applied Electric Fields: Sulfate Attack vs. Decalcification." Composites Part B: Engineering 2022: 110255.

Li, Jiaqi, and Qi Zheng. 2022. "The First Experimental Evidence for Improved Nanomechanical Properties of Calcium Silicate Hydrate by Polycarboxylate Ether and Graphene Oxide." Cement and Concrete Research 156 2022: 106787.

Li, Jiaqi. "Solid Carbon Sequestration in Concrete: an Enabler of Hydrogen from Methane Pyrolysis." Poster. Gordon Research Conference: Carbon Capture, Utilization and Storage. Ventura, USA. Apr 3-8, 2022.

Li, Jiaqi. "The Intrinsic Mechanical Properties of Calcium Silicate Hydrate in the Presence of Polycarboxylate Ether and Graphene Oxide: The First Evidence." 12th Advances in Cement-Based Materials, Irvine, USA. July 11-13, 2022.