S C
IE N
T IF
IC H
IG H
LI G
H T
S M
A T
E R
IA L
S F
O R
T O
M O
R R
O W
'S I
N N
O V
A T
IV E
A N
D S
U S
T A
IN A
B L
E I
N D
U S
T R
Y
4 7 I H I G H L I G H T S 2 0 2 3
PRINCIPAL PUBLICATION AND AUTHORS
Imaging the strain evolution of a platinum nanoparticle under electrochemical control, C. Atlan (a,b,c), C. Chatelier (a,b), I. Martens (b), M. Dupraz (a,b), A. Viola (c), Ni Li (a,b), L. Gao (d), S.J. Leake (b), T.U. Schülli (b), J. Eymery (a), F. Maillard (c), M.-I. Richard (a,b), Nat. Mater. 22, 754 (2023); https:/doi.org/10.1038/s41563-023-01528-x (a) IRIG, MEM, NRX, Univ. Grenoble Alpes, CEA Grenoble, Grenoble (France) (b) ESRF (c) Univ. Grenoble Alpes, CNRS, Grenoble INP, Univ. Savoie Mont Blanc, LEPMI, Grenoble (France) (d) Laboratory for Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven (The Netherlands)
REFERENCES
[1] B. Hammer & J. K. Nørskov, Surf. Sci. 343, 211 (1995). [2] B. Hammer & J. K. Nørskov, Nature 376, 238 (1995). [3] F. Calle-Vallejo et al., Science 350, 185 (2015).
rather than size-related. These findings suggest that the experimental results should bridge the gap towards smaller, industrially relevant electrocatalysts.
Beyond their theoretical interest, the results of this study should guide experimentalists towards the rational design of the next generation of catalysts with tailored activity, selectivity and lifetime.
Fig. 30: Adsorption configurations of HSO4 on Pt model morphological features (periodic slab modes) and their associated strain response along the [002] direction. Left insets display the iso-surface charge density difference (±0.02 e /Å3). Negative (respectively positive) iso-surfaces are plotted in blue (respectively orange) and correspond to electron-donating regions (respectively electron- accepting regions). Right insets show the strain response ε002 resulting from the associated adsorption. The reference state for each strain calculation is its prior relaxed feature. Panels (a), (b), (c) and (d) correspond to corner, (001)|(111) edge, (001) and (111) facet regions respectively, and are ordered by adsorption energy (most adsorbing to least adsorbing states).
