Nidya Chitraningrum, Firman Gunawan, Rakhmawati Farma, Subyakto Subyakto, Achmad Subhan, Ahmad Fudholi, Ahmad Rajani, Irma Apriyani, Karin Saulina Manurung, Ferry Ananda Ramadhan, Anees Ameera Binti Fauzi, Wahyudi Nandana Munte
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The effect of nitrogen doping on the LIB performance of activated carbon-based OPEFB, with the OPEFB: melamine mass ratio variations of 1:1 and 1:2, was investigated. The obtained AC and ACN samples were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Brunauer–Emmett–Teller (BET) analysis, and field-emission scanning electron microscopy (FESEM). The LIB performances were performed by electrochemical characterization such as cyclic voltammetry (CV), charge–discharge (CD), and electrochemical impedance spectroscopy (EIS) analysis. The suppression of specific surface area by the increase of melamine addition from 758.38 to 307.57 m<sup>2</sup> g<sup>−1</sup> contributed to the increase of nitrogen content in OPEFB-activated carbon. As evident from the FTIR analysis, the increase of the C-N bond peak indicates the presence of nitrogen heteroatoms in the activated carbon materials. However, the LIB performance was greatly enhanced by increased doping of OPEFB-activated carbon with nitrogen. The results showed that in the ACN12 sample, the discharge capacity was significantly improved from 219.27 to 314.18 mAh g<sup>−1</sup>. 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引用次数: 0
摘要
生物质是一种可持续能源，可以转化为极有前途的活性炭材料，用于锂离子电池（LIB）储能装置。本文以油棕空果串（OPEFB）为原料，通过化学活化和炭化工艺，分别在添加三聚氰胺和不添加三聚氰胺作为氮掺杂剂的情况下合成了非掺杂活性炭（AC）和氮掺杂活性炭（ACN），并将其作为锂离子电池负极材料的组成部分。在OPEFB与三聚氰胺的质量比为1:1和1:2的情况下，研究了氮掺杂对活性炭基OPEFB LIB性能的影响。采用x射线衍射（XRD）、傅里叶变换红外光谱（FTIR）、布鲁诺尔-埃米特-泰勒（BET）分析和场发射扫描电镜（FESEM）对所得的AC和ACN样品进行了表征。通过循环伏安法（CV）、充放电法（CD）和电化学阻抗谱（EIS）等电化学表征方法对锂离子电池的性能进行了表征。三聚氰胺添加量从758.38增加到307.57 m2 g−1，抑制了opefb活性炭的比表面积，使其含氮量增加。从FTIR分析可以看出，C-N键峰的增加表明活性炭材料中存在氮杂原子。然而，增加opefb -活性炭与氮的掺杂量可以大大提高LIB的性能。结果表明，在ACN12样品中，放电容量从219.27 mAh g−1显著提高到314.18 mAh g−1；此外，ACN12的库仑效率也从55.57提高到78.98%，这使其成为一种有前途的可持续低成本锂离子电池负极材料。图摘要n掺杂活性炭基油棕空纤维束的制备。
Nitrogen-doped activated carbon derived from oil palm empty fruit bunch (OPEFB) for sustainable lithium-ion battery
Biomass is a sustainable energy resource that can be transformed into highly promising activated carbon materials for the utilization of lithium-ion battery (LIB) energy storage devices. Herein, the activated carbon was successfully synthesized from oil palm empty fruit bunch (OPEFB) through chemical activation and carbonization processes with and without the addition of melamine as a nitrogen dopant to generate non-doped (AC) and nitrogen-doped activated carbon (ACN), respectively, and consequently used as a component for anode materials of LIB. The effect of nitrogen doping on the LIB performance of activated carbon-based OPEFB, with the OPEFB: melamine mass ratio variations of 1:1 and 1:2, was investigated. The obtained AC and ACN samples were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Brunauer–Emmett–Teller (BET) analysis, and field-emission scanning electron microscopy (FESEM). The LIB performances were performed by electrochemical characterization such as cyclic voltammetry (CV), charge–discharge (CD), and electrochemical impedance spectroscopy (EIS) analysis. The suppression of specific surface area by the increase of melamine addition from 758.38 to 307.57 m2 g−1 contributed to the increase of nitrogen content in OPEFB-activated carbon. As evident from the FTIR analysis, the increase of the C-N bond peak indicates the presence of nitrogen heteroatoms in the activated carbon materials. However, the LIB performance was greatly enhanced by increased doping of OPEFB-activated carbon with nitrogen. The results showed that in the ACN12 sample, the discharge capacity was significantly improved from 219.27 to 314.18 mAh g−1. In addition, the ACN12 also exhibits an improvement in coulombic efficiency from 55.57 to 78.98%, which makes it a promising anode material for sustainable and low-cost lithium-ion batteries.
Graphical abstract
Preparation of N-doped activated carbon-based oil palm empty fiber bunch.
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Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.
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