Nickel-iron nanoparticles encapsulated in carbon nanotubes prepared from waste plastics for low-temperature solid oxide fuel cells

被引：23

作者：

Liu, Qingyu ^{[1
]}

Wang, Faze ^{[1
]}

Hu, Enyi ^{[1
]}

Hong, Ru ^{[1
]}

Li, Tao ^{[1
]}

Yuan, Xiangzhou ^{[2
,3
]}

Cheng, Xin-Bing ^{[1
]}

Cai, Ning ^{[4
]}

Xiao, Rui ^{[1
]}

Zhang, Huiyan ^{[1
]}

机构：

[1] Southeast Univ, Sch Energy & Environm, Minist Educ, Key Lab Energy Thermal Convers & Control, Nanjing 210096, Peoples R China

[2] Korea Univ, APRU Sustainable Waste Management Program, Korea Biochar Res Ctr, Seoul 02841, South Korea

[3] Korea Univ, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea

[4] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Peoples R China

来源：

ISCIENCE | 2022年 / 25卷 / 08期

关键词：

HIGH-PERFORMANCE; ANODE MATERIALS; METHANE DECOMPOSITION; GRAPHENE NANORIBBONS; OXYGEN REDUCTION; CATALYSTS; HYDROGEN; CO; EFFICIENT; FE;

D O I：

10.1016/j.isci.2022.104855

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Low-temperature solid oxide fuel cells (LT-SOFCs) are a promising next-generation fuel cell due to their low cost and rapid start-up, posing a significant challenge to electrode materials with high electrocatalytic activity. Herein, we reported the bimetallic nanoparticles encapsulated in carbon nanotubes (NiFe@CNTs) prepared by carefully controlling catalytic pyrolysis of waste plastics. Results showed that plenty of multi-walled CNTs with outer diameters (14.38 +/- 3.84 nm) were observed due to the smallest crystalline size of Ni-Fe alloy nanoparticles. SOFCs with such NiFe@CNTs blended in anode exhibited remarkable performances, reaching a maximum power density of 885 mW cm(-2) at 500 degrees C. This could be attributed to the well-dispersed alloy nanoparticles and high graphitization degree of NiFe@CNTs to improve HOR activity. Our strategy could upcycle waste plastics to produce nanocomposites and demonstrate a high-performance LT-SOFCs system, addressing the challenges of sustainable waste management and guaranteeing global energy safety simultaneously.

引用

页数：14

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