One-step fabrication of P-Co5.47N/Co9S8@NPC heterojunction derived from saccharomycetes cerevisiae as environment-friendly bifunctional high-efficiency electrocatalysts

被引:1
|
作者
Jing, Xiaoyun [1 ]
Lv, Changwu [1 ]
Zhang, Hongmei [2 ]
Chen, Chu [1 ]
Wu, Zhaofeng [1 ]
机构
[1] Xinjiang Univ, Sch Phys Sci & Technol, Xinjiang Key Lab Solid State Phys & Devices, Urumqi 830017, Peoples R China
[2] Xinjiang Inst Engn, Key Lab New Energy & Mat Res, Urumqi 830023, Xinjiang, Peoples R China
关键词
One-step; Two-phase heterojunction; Overall water splitting; Phosphorus doping; Saccharomycetes cerevisiae; NITROGEN; CARBON; HETEROSTRUCTURE;
D O I
10.1016/j.colsurfa.2024.134411
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The one-step green preparation of heterojunction-structured bifunctional high-efficiency electrocatalysts provides a simple method for the green, low-cost, convenient and efficient application of hydrogen energy, meanwhile it is still challenging to achieve. In the present work, the phosphorus-doped two-phase heterojunction PCo5.47N/Co9S8@NPC nanorods was synthesized on carbon cloth (CC) as a high-quality bifunctional electrode through simple one-step chemical vapor deposition (CVD) method. Saccharomycetes cerevisiae were used for the non-toxic phosphorus doping and formation of a carbon nanolayer wrapping Co5.47N/Co9S8 nanorods. Compared with the single-phase electrocatalyst Co9S8@NPC NSs/CC, P-Co5.47N/Co9S8@NPC NSs/CC exhibited more excellent electrocatalytic performance which required overpotentials of 69 mV for hydrogen evolution reaction (HER), 182.5 mV for oxygen evolution reaction (OER), 1.45 V for over water splitting (OWS) at 10 mA cm(-2) in KOH solution. The designed P-Co5.47N/Co9S8@NPC NSs/CC presented multiple advantages of nanorod structure, doped structure, abundant heterointerfaces, as well as dual-phase synergy, which triggered outstanding electrocatalytic performance.
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页数:11
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