Journal of Energy Storage
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2025
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IF 9.8
Weigang Zhao,Jianping Deng,Qianqian Zhang,Lu Luo,Lingcong Luo,Hongyan Wang,Jiande Lin,Haili Gao
Lightweight balsa wood, with its intrinsic hierarchical porosity, was employed as a sustainable precursor to prepare phosphoric acid-activated carbon (PNOAC), which was subsequently modified with polyaniline (PANI) via an in-situ polymerization strategy to construct high-performance supercapacitor electrodes. The heteroatom-doped carbon framework (N/O/P) provides high conductivity, abundant redox-active sites, and interconnected porosity, while the conformal PANI coating contributes additional pseudocapacitance and structural stability. By optimizing the aniline-to‑carbon ratio, the [email protected] composite delivered a high specific capacitance of 539 F g −1 at 0.5 A g −1 and maintained 72.6 % retention at 10 A g −1 . Electrochemical impedance spectroscopy revealed a low charge-transfer resistance (0.218 Ω), and density functional theory (DFT) calculations confirmed favorable proton and anion adsorption, as well as enhanced electronic density near the Fermi level, elucidating the accelerated redox kinetics. When assembled into an asymmetric supercapacitor with PNOAC as the negative electrode, the device achieved an energy density of 14.08 Wh kg −1 at 845 W kg −1 and retained 9.39 Wh kg −1 at 8450 W kg −1 , with 87.3 % capacitance retention after 1000 cycles. Moreover, the device successfully powered a light-emitting diode, demonstrating its practical applicability. This work provides a scalable and sustainable strategy for integrating biomass-derived conductive carbons with pseudocapacitive polymers, offering significant potential for next-generation high-energy supercapacitors.
研究领域:
材料科学
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能源存储
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纳米科技
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电化学
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可持续能源
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Jing Yan,Kaicheng Zhang,Faguang Ma,Hang Cui,Yilin Wu
Membrane-based separations can improve energy efficiency and reduce the environmental impact associated with conventional methods. However, conventional adsorbents encapsulate most of their functional sites in their dense structures, leading to issues of low selectivity and adsorption capacity. To overcome the above problems, the scalable basswood-based PDA/GO-embedded self-assembly membranes were prepared based a multilayer artemisinin (Ars)-imprinted nanocage (MA/SB-P/G-ESMs) for highly selective adsorption and transport to Ars. The double-layer imprinting strategy of graphene oxide based on polydopamine and κ-carrageenan using three-dimensional mesoporous basswood as the support membrane improved the effective imprinting platform. The final MA/SB-P/G-ESMs were prepared by a heat-initiated radical polymerization, acrylamide was used as a functional monomer to conveniently and efficiently form specific recognition sites on the membrane. Notably, the outcomes demonstrated that, despite interference with other rivals, MA/SB-P/G-ESMs displayed perfect rebinding selectivity ( λ = 2.67, 2.89, 2.35) and perm-selectivity ( β = 8.16, 5.43, 6.51) for Ars. The high regeneration rate (after 10 cycles, greater than93%) demonstrated the MA/SB-P/G-ESMs' practical application potential. The selective separation of Ars using the MA/SB-P/G-ESM preparation method showed substantial promise in this work.
研究领域:
材料科学
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环境科学
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药物分离技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED POWDER TECHNOLOGY
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2025
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IF 4.2
Bingyan Li,Yinglin Yan,Xingsheng Zhang,Bing Ren,Zhiying Meng,Rongfu Xu,Yiming Zou,Qijiu Deng,Wei Yu,Xianhui Wang,Nana Zhao,Lisheng Zhong,Rong Yang,Yunhua Xu
Although lithium-sulfur (Li-S) batteries have broad market prospects owing to their high theoretical energy density and potential cost-effectiveness, their practical application still faces serious shuttle effects of polysulfides (LiPSs) and sluggish redox kinetics. In this study, a cobalt-organic framework, ZIF-67, decorated balsa wood matrix (ZIF-67/BW) was utilized to prepare a cobalt-nitrogen-encapsulated carbon host (Co-N/CBW) with dual-stage-order microchannels for self-standing cathodes in high-performance Li-S batteries. The first-stage-order microchannels inherited from wood provided fast transmission paths for electrolyte. The ZIF-67 derived Co-N carbon particles with the second-stage-order microchannels provided strong chemical adsorption and enhanced conversion kinetics for LiPSs. Owing to these advantages, the Co-N/CBW/Li 2 S 8 cathode exhibited a high initial discharge specific capacity of 1213.1 mAh g −1 at 0.1 C and good cycling stability at 0.5 C (590 mAh g −1 after 200 cycles). By increasing the sulfur loading to 5.97 mg cm −2 , the cathode maintained a remarkable area-specific capacity (3.42 mAh cm −2 ) after 100 cycles. This work proposes a strategy for the cooperation of the catalyst and matrix, providing more possibilities for the development of Li-S batteries.
研究领域:
储能
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纳米材料
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电化学
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金属有机框架
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电池技术
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Ying Zhang,Jiehui Li,Yuqing Wang,Pu Feng,Yurou Dong,Cai-Li Sun,Jinmei He,Yating Zhang,Mengnan Qu
In confronting the crucial matter of freshwater scarcity, solar-driven interfacial evaporation technology presents itself as a promising approach. Nevertheless, designing an evaporator that effectively combines high evaporation rate, salt resistance and stability remains a major challenge. Herein, we present an aerogel evaporator inspired by the vertical water transport channels of balsa wood and featuring a mushroom-shaped macroscopic morphology. This aerogel evaporator is constructed with a porous framework of polyvinyl alcohol and sodium alginate, and diatomite is introduced as the filler. Meanwhile, the use of carbonized green bamboo fiber and carbon black that have undergone hydrophilic treatment as photothermal conversion materials significantly enhances the efficiency of solar absorption and photothermal conversion, ensuring the efficient and stable operation of the evaporator during the solar-driven interfacial evaporation. The aerogel evaporator demonstrates an excellent evaporation rate, reaching 2.33 kg m −2 h −1 , and effectively reduces the evaporation enthalpy of pure water from 2430 J g −1 to 1350 J g −1 . Moreover, it maintains commendable stability over 10 consecutive cycle tests. The unique design of the mushroom-shaped top aerogel evaporators presents a viable and sustainable solution for water purification, potentially playing a pivotal role in mitigating the global freshwater crisis.
研究领域:
材料科学
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环境工程
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纳米技术
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能量转换
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仿生学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）