Tianyi Gao, Honghao Huang, Fei Zhang, Yutong Luo, Kangrui Sun, Fei Wang, Fang Fang, Yang Liu. "Cation Exchange‐Driven Grain Boundary‐Rich Nanorings as Efficient CO 2 Reduction Electrocatalysts." Angewandte Chemie International Edition, 2025. doi:10.1002/anie.202510973