祝贺郝翊茹的论文"Tuning the Electronic Structure of CoP Embedded in N-doped Porous Carbon Nanocubes via Ru-doping for Efficient Hydrogen Evolution" 发表在ACS Appl. Mater. Interfaces。(DOI: 10.1021/acsami.1c14387)

Figure1 (a) Synthetic route of Ru-CoP/NC. (b) XRD patterns of CoP/NC and Ru-CoP/NC (inset is the crystal structure of CoP and Ru-doped CoP). SEM images of (c) CoP/NC and (d) Ru-CoP/NC. (e–g) TEM and (h) HR-TEM images of Ru-CoP/NC. (i) Elemental mappings.

Figure2 (a) Raman spectra of various catalysts. XPS spectra of CoP/NC and Ru-CoP/NC: (b) Co 2p, (c) P 2p, and (d) Ru 3p.

Figure3 (a) Photograph of the centrifugate for CoP/NC (left) and Ru-CoP/NC (right) catalysts. The contact angles of a drop of water on (b) CoP/NC and (c) Ru-CoP/NC, respectively.

Figure4 (a) LSV curves, (b) Tafel slopes of the catalysts in 1 M KOH for HER, (c) LSV curves, (d) Tafel slopes of the catalysts in 1 M KOH for OER, (e) LSV curve of Ru-CoP/NC measured in a 1 M KOH solution, and (f) chronoamperometric durability test of Ru-CoP/NC (inset is the photograph during the overall water splitting).

Figure5 (a, c) LSV curves, (b, d) Tafel slopes, and (e, f) chronoamperometric tests of different catalysts in 0.5 M H2SO4 and 1 M PBS.

Figure6 SEM images of Ru-CoP/NC after the stability test in different electrolytes: HER test in (a, b) 1 M KOH, (c, d) 0.5 M H2SO4, and (e, f) 1 M PBS. (g, h) OER test in 1 M KOH. (i) Schematic diagram of the catalytic process over Ru-CoP/NC.