Self-Assemble and In Situ Formation of Ni1−xFexPS3 Nanomosaic-Decorated MXene Hybrids for Overall Water Splitting
作者： Cheng-Feng Du , Khang Ngoc Dinh , Qinghua Liang , Yun Zheng , Yubo Luo
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摘要: Herein, the authors present development of novel 0D–2D nanohybrids consisting a nickel‐based bimetal phosphorus trisulfide (Ni1−xFexPS3) nanomosaic that decorates on surface MXene nanosheets (denoted as NFPS@MXene). The are obtained through facile self‐assemble process transition metal layered double hydroxide (TMLDH) surface; followed by low temperature in situ solid‐state reaction step. By tuning Ni:Fe ratio, as‐synthesized NFPS@MXene exhibit excellent activities when tested electrocatalysts for overall water splitting. Particularly, with initial ratio 7:3, Ni0.7Fe0.3PS3@MXene nanohybrid reveals overpotential (282 mV) and Tafel slope (36.5 mV dec−1) oxygen evolution (OER) 1 m KOH solution. Meanwhile, Ni0.9Fe0.1PS3@MXene shows (196 hydrogen (HER) When integrated splitting, || couple onset potential 1.42 V needs only 1.65 to reach current density 10 mA cm−2, which is better than all noble IrO2 Pt/C electrocatalyst (1.71 mV@10 cm−2). Given chemical versatility Ni1−xFexPS3 convenient process, demonstrated this work promising energy conversion applications.
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