M. Khalid, H. A. B. Fonseca, L. G. Verga, M. R. Hatshan, J. L. F. Da Silva, H. Varela, and S. Shahgaldia, Ru nanoclusters implanted N, S co-doped carbonaceous shell for an effective hydrogen evolution electrode, Journal of Electroanalytical Chemistry 929, 117116 (2023).