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Oxygen reduction and evolution reactions are very crucial in energy technologies. Heteroatom-doped carbon nanomaterials have emerged as an alternative to precious metal-based electrocatalysts as a cathode electrode for fuel cells. However, the complex and expensive synthesis of carbon nanomaterials is not commercially viable, leading to the use of porous carbon materials derived from low-cost biomass wastes and byproducts as cathode electrocatalysts for oxygen reduction reaction (ORR) in fuel cells and other energy devices. Because good ORR catalysts are not always equally efficient for oxygen evolution reactions (OER), biomass-derived bifunctional electrocatalysts may be preferable to scarce and costly Pt and Ir/Ru-based commercial bifunctional catalysts. The selection of suitable biomass that naturally contains various heteroatom (s) such as N, P, S, B, and so on is critical because it can reduce costs and avoid the use of toxic precursors for heteroatom-doping. To optimize their electrocatalytic properties, porous carbon^_@span style=color:#999999 ^_# ... ^_@/span^_#^_@a href=javascript:; onclick=onClickReadNode('NODE11027165');fn_statistics('Z354','null','null'); style='color:#999999;font-size:14px;text-decoration:underline;' ^_#전체 초록 보기^_@/a^_#
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