Abstract
AbstractExpanding the application scenarios of wood-derived biochar guided by the conversion of traditional energy to new energy shows great promise as a field. As thrilling energy conversion apparatus, zinc-air batteries (ZABs) require cathode catalysts with high oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) activities and stability. Herein, two-dimensional nickel-iron hydroxide nanosheets were creatively assembled in N-doped wood-derived biochar (NiFe-LDH@NC) by an in-situ growth method. The categorized porous organization in wood-derived biochar facilitates the rapid seepage of electrolytes and rapid diffusion of reaction gases. The unique interfacial structure of biochar and NiFe-LDH accelerates electron transfer during oxygen electrocatalysis, and endows NiFe-LDH@NC with first-class catalytic activity and durability for ORR and OER. The ZAB derived from NiFe-LDH@NC showed elevated discharge productivity and cycle endurance, making it promising for viable applications. This work provided a convenient way for the conversion of wood-derived biochar to high-value added electrocatalysts.
Graphical Abstract
Funder
Jiangsu Province Key Laboratory of Biomass Energy and Materials
Young Top Talent Program of Zhongyuan-Yingcai-Jihua
Top-Notch Talent Program of Henan Agricultural University
National Natural Science Foundation of China
Publisher
Springer Science and Business Media LLC
Subject
Pollution,Soil Science,Environmental Science (miscellaneous),Biomaterials
Cited by
1 articles.
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