Tunable charge Pt sites-dominated alloy confined by MXene-derived oxycarbide enables ultra-stable ampere-level hydrogen production
學年 113
學期 2
出版（發表）日期 2025-04-01
作品名稱 Tunable charge Pt sites-dominated alloy confined by MXene-derived oxycarbide enables ultra-stable ampere-level hydrogen production
作品名稱（其他語言）
著者 Phan Khanh Linh Tran; Thanh Hai Nguyen; Duy Thanh Tran; Van An Dinh; Thi Thuy Nga Ta; Chung-Li Dong; Nam Hoon Kim; Joong Hee Lee
單位
出版者
著錄名稱、卷期、頁數 Applied Catalysis B: Environment and Energy 363, 124801
摘要 Here, we introduce a porous electrocatalyst of NiPt nanostructures owning ultra-low Pt loading (1.22 wt%) and tunable charge Pt sites-dominated surface confined in MXene-derived NiV oxycarbide nanospheres (NiPt@NVOC). The material with unique morphological and structural integrity and adjusted electronic configuration delivers rich exposition of negatively charged Pt active centers to lower water dissociation energy barrier and kinetically favor intermediate’s adsorption and hydrogen production, thus requiring overpotential of only 11.9 and 35.6 mV to reach 10 mA cm−2 in 0.5 M H2SO4 and 1.0 M KOH, respectively. The practicability of NiPt@NVOC-based cathode via an anion exchange membrane water electrolyzer stack demonstrates small voltage of 1.70/1.83 V to reach high current density of 0.5/1.0 A cm−2 in 1.0 M KOH at 60 °C and remarkable durability at 1.0 A cm−2 over 2000 hours of continuous operation. The findings mark significant progress in the development of advanced electrocatalysts for hydrogen production application.
關鍵字 Tunable charged Pt; NiV oxycarbide; High-performance HER catalyst; Water splitting
語言 en
ISSN 0926-3373
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 NLD
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/129526 )