“…In doping strategies, the universally employed dopants include N, 24,243 P, 244,245 Ni, 246 and the combinations of these single elements. 90,246 Recently, Ji and co-authors prepared N, P-codoped Ni x B y , 94,252,253 Co x B y , 254 Fe x B y , 255 Ru x B y , 256 (Figure 21b).…”