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TEM images of Rh nanoparticles from the slow-injection methods, with corresponding average edge lengths of (a) 15 nm, (b) 21, (c) 27 nm, (d) 39 nm, (e) 47 nm, and (f) 59 nm. Reprinted with permission from ref. [135]. Xu, L. et al., Heliyon 5, e01165 (2019). © 2019 Elsevier Ltd.
