Nitrogen-doped carbon spheres decorated with CoSx nanoparticles as multifunctional electrocatalysts for rechargeable zn-air battery and overall water splitting

doi:10.1016/j.materresbull.2020.110770

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Nitrogen-doped carbon spheres decorated with CoSx nanoparticles as multifunctional electrocatalysts for rechargeable zn-air battery and overall water splitting
	Ju, Qiangjian; Ma, Ruguang; Pei, Yu; Guo, Beibei; Liu, Qian; Zhang, Tao; Yang, Minghui; Wang, Jiacheng
刊名	MATERIALS RESEARCH BULLETIN
	2020
卷号	125
关键词	METAL-FREE ELECTROCATALYST HYDROGEN EVOLUTION OXYGEN REDUCTION MESOPOROUS CARBON NANOTUBES CATALYST
DOI	10.1016/j.materresbull.2020.110770
英文摘要	Developing non-precious multi-functional electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) to replace noble metal (Pt, Ru, Ir, etc) is one of the most important directions in the field of energy conversion and storage. Herein, we successfully prepared CoSx nanoparticles loaded onto N-doped carbon spheres to form unique CoSx/NCS nanocomposites, showing good trifunctional activities for ORR, OER and HER. As the cathodic electrocatalyst in Zn-air battery, the CoSx/NCS shows a lower charge voltage of 2.1 V and a high power density of 72.7 mW cm(-2) compared to Pt/C. CoSx/NCS also shows potentials in overall water splitting as the OER and HER electrocatalysts. The onset potential and overpotential at 10 mA cm(-2) toward overall water splitting reaches 1.70 V and 1.83 V, respectively. The enhanced activity of CoSx/NCS should be ascribed to the synergistic effects of improved surface hydrophilicity, CoN sites, pyridinic-N species, and Co-S bonds. This study provides a new strategy to synthesize active electrocatalysts with multiple functions in energy conversion and storage.
学科主题	Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19738]
专题	2020专题
作者单位	Wang, JC (corresponding author), Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China.
推荐引用方式 GB/T 7714	Ju, Qiangjian,Ma, Ruguang,Pei, Yu,et al. Nitrogen-doped carbon spheres decorated with CoSx nanoparticles as multifunctional electrocatalysts for rechargeable zn-air battery and overall water splitting[J]. MATERIALS RESEARCH BULLETIN,2020,125.
APA	Ju, Qiangjian.,Ma, Ruguang.,Pei, Yu.,Guo, Beibei.,Liu, Qian.,...&Wang, Jiacheng.(2020).Nitrogen-doped carbon spheres decorated with CoSx nanoparticles as multifunctional electrocatalysts for rechargeable zn-air battery and overall water splitting.MATERIALS RESEARCH BULLETIN,125.
MLA	Ju, Qiangjian,et al."Nitrogen-doped carbon spheres decorated with CoSx nanoparticles as multifunctional electrocatalysts for rechargeable zn-air battery and overall water splitting".MATERIALS RESEARCH BULLETIN 125(2020).