High-Density Atomic Fe-N-4/C in Tubular, Biomass-Derived, Nitrogen-Rich Porous Carbon as Air-Electrodes for Flexible Zn-Air Batteries

Jiao, Chuanlai1,2; Xu, Zian1; Shao, Jingze4; Xia, Yu1,5; Tseng, Jochi6; Ren, Guangyuan1; Zhang, Nianji1; Liu, Pengfei7; Liu, Chongxuan8; Li, Guangshe3; Chen, Shi2; Chen, Shaoqing1; Wang, Hsing-Lin1,2

2023-02-01

10.1002/adfm.202213897

ADVANCED FUNCTIONAL MATERIALS   Impact Factor & Quartile

1616-301X

1616-3028

Developing low-cost single-atom catalysts (SACs) with high-density active sites for oxygen reduction/evolution reactions (ORR/OER) are desirable to promote the performance and application of metal-air batteries. Herein, the Fe nanoparticles are precisely regulated to Fe single atoms supported on the waste biomass corn silk (CS) based porous carbon for ORR and OER. The distinct hierarchical porous structure and hollow tube morphology are critical for boosting ORR/OER performance through exposing more accessible active sites, providing facile electron conductivity, and facilitating the mass transfer of reactant. Moreover, the enhanced intrinsic activity is mainly ascribed to the high Fe single-atom (4.3 wt.%) loading content in the as-synthesized catalyst.Moreover, the ultra-high N doping (10 wt.%) can compensate the insufficient OER performance of conventional Fe-N-C catalysts. When as-prepared catalysts are assembled as air-electrodes in flexible Zn-air batteries, they perform a high peak power density of 101 mW cm(-2), a stable discharge-charge voltage gap of 0.73 V for >44 h, which shows a great potential for Zinc-air battery. This work provides an avenue to transform the renewable low-cost biomass materials into bifunctional electrocatalysts with high-density single-atom active sites and hierarchical porous structure.

biomass-derived materials flexible Zn-air batteries hierarchical porous structures single-atom catalysts

SCI

English

NI Journal Papers

First ; Corresponding

Department of Science and Technology of Guangdong Province[2017ZT07Z479] ; Leading Talents of Guangdong Province Program[2016LJ06N507] ; Key-Area Research and Development Program of GuangDong Province[2019B010941001] ; Shenzhen Basic Research Program[JCYJ20190809144215761] ; Science and Technology Program of Shenzhen[JSGG20200924171000001]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000936343300001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Key Univ Lab Highly Efficient Utilizat Solar Energ, Shenzhen 518055, Guangdong, Peoples R China
3.Univ Macau, Inst Appl Phys & Mat Engn, Joint Key Lab Minist Educ, Macau 999078, Peoples R China
4.Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
5.Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, England
6.SPring-8, Japan Synchrotron Radiat Res Inst JASRI, Diffract & Scattering Div, Sayo, Hyogo 6795198, Japan
7.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
8.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China

Jiao, Chuanlai,Xu, Zian,Shao, Jingze,et al. High-Density Atomic Fe-N-4/C in Tubular, Biomass-Derived, Nitrogen-Rich Porous Carbon as Air-Electrodes for Flexible Zn-Air Batteries[J]. ADVANCED FUNCTIONAL MATERIALS,2023.

Jiao, Chuanlai.,Xu, Zian.,Shao, Jingze.,Xia, Yu.,Tseng, Jochi.,...&Wang, Hsing-Lin.(2023).High-Density Atomic Fe-N-4/C in Tubular, Biomass-Derived, Nitrogen-Rich Porous Carbon as Air-Electrodes for Flexible Zn-Air Batteries.ADVANCED FUNCTIONAL MATERIALS.

Jiao, Chuanlai,et al."High-Density Atomic Fe-N-4/C in Tubular, Biomass-Derived, Nitrogen-Rich Porous Carbon as Air-Electrodes for Flexible Zn-Air Batteries".ADVANCED FUNCTIONAL MATERIALS (2023).