TY  - JOUR
AU  - Son, Minjin
AU  - Park, Jaehyun
AU  - Im, Eunmi
AU  - Ryu, Jong Hun
AU  - Durmus, Yasin Emre
AU  - Eichel, Rüdiger-A.
AU  - Kang, Seok Ju
TI  - Sacrificial Catalyst of Carbothermal-Shock-Synthesized 1T-MoS2 Layers for Ultralong-Lifespan Seawater Battery
JO  - Nano letters
VL  - 23
IS  - 1
SN  - 1530-6984
CY  - Washington, DC
PB  - ACS Publ.
M1  - FZJ-2024-00659
SP  - 344 - 352
PY  - 2023
AB  - A Pt-nanoparticle-decorated 1T-MoS2 layer is designed as a sacrificial electrocatalyst by carbothermal shock (CTS) treatment to improve the energy efficiency and lifespan of seawater batteries. The phase transition of MoS2 crystals from 2H to metallic 1T─induced by the simple but potent CTS treatment─improves the oxygen-reduction-reaction (ORR) activity in seawater catholyte. In particular, the MoS2-based sacrificial catalyst effectively decreases the overpotential during charging via edge oxidation of MoS2, enhancing the cycling stability of the seawater battery. Furthermore, Pt nanoparticles are deposited onto CTS-MoS2 via an additional CTS treatment. The resulting specimen exhibits a significantly low charge/discharge potential gap of Δ0.39 V, high power density of 6.56 mW cm–2, and remarkable cycling stability up to ∼200 cycles (∼800 h). Thus, the novel strategy reported herein for the preparation of Pt-decorated 1T-MoS2 by CTS treatment could facilitate the development of efficient bifunctional electrocatalysts for fabricating seawater batteries with long service life.
LB  - PUB:(DE-HGF)16
C6  - 36574277
UR  - <Go to ISI:>//WOS:000906464500001
DO  - DOI:10.1021/acs.nanolett.2c04698
UR  - https://juser.fz-juelich.de/record/1021218
ER  -