Journal of Energy Chemistry
·
2024
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IF 14
Shuzhe Yang,Hao Luo,Yukun Li,Qingqing Gao,Hui Li,Hongwei Cai,Xiaodan Li,Yanfen Wen,Yujin Tong,Tiefeng Liu,Mi Lu
Traditional pyrometallurgy and hydrometallurgy processes primarily focus on the recovery of valuable metals (Co, Ni, etc.) from spent lithium-ion batteries. However, these methods are not economical for recycling cheap LiFePO 4 . Herein, a synergistic thermal-decomposition and electric-drive strategy is proposed to recover the whole spent LiFePO 4 electrode by in-situ recovering the inactive lithium (dead lithium and trapped interlayer lithium). Firstly, the organic components in the dense solid electrolyte interface (SEI) are effectively decomposed through thermal-decomposition processing, exposing the dead lithium encapsulated within the SEI and recovering the electron channels between the dead lithium and graphite. Leveraging the difference between the Gibbs free energy of the dead lithium and graphite as the driving force facilitates the dead lithium inserting into the anode. Then, fully utilizing the remaining discharge capacity of the spent LiFePO 4 cell, the inactive lithium is reinserted into LiFePO 4 lattice during the electric-drive process. Consequently, the reactivated lithium content increases by more than 16%, reaching a capacity of 134.2 mA h g −1 compared to 115.2 mA h g −1 from degraded LiFePO 4 , allowing for effective participation in the subsequent cycling. This work provides new perspectives on highly profitable cycles with low energy and material consumption and a low carbon footprint.
研究领域:
材料科学
·
能源工程
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 44
·2302110
·
IF 19
Yawen Liu,Yahe Wu,Huan Liang,Hongtu Xu,Yen Wei,Yan Ji
Conductive structures determine the functions and actuation modes of electrically responsive soft actuators. The rewritability of conductive structures is highly desirable but has not been realized in electro-driven actuators. Typically, once conductive pathways are established, they can hardly be modified; thus, the function of the actuator is permanently fixed. In this study, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is developed as a rewritable conductive coating for actuators composed of liquid crystalline elastomers (LCEs). This enables reconfigurable, adaptive, and precisely controllable electro-driven motions and the repeated use of the same actuator for various purposes without disposal. Moreover, different PEDOT:PSS layers can be coated onto different regions, thus enabling the assembly of different actuation behaviors in a monolithic actuator under a single input voltage. Unlike all previously reported soft actuators that respond to electricity and light, opposite shape changes in an actuator with a series circuit can be performed under these two stimuli. Furthermore, when combining LCEs with dynamic covalent bonds, the PEDOT:PSS-coated LCE (PEDOT:PSS-LCE) actuator can be reprogrammed based on two different mechanisms: rewriting the conductive PEDOT:PSS patterns and re-aligning the LCEs. This versatile method can be adapted to other types of actuators.
研究领域:
材料科学
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软体机器人
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智能材料
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产品关联
DOI
高影响因子
ACS Catalysis
·
2025
·
IF 13.1
Xiaochao Wang,Xuteng Zhao,Guangzhao Zhou,Ting Chen,Qi Chen,Nicolas Alonso-Vante,Zhen Huang,Yiran Zhang,He Lin
Hydrogen (H2) production from the ammonia (NH3) decomposition reaction (ADR) is promising to build a carbon-free H2 world. However, the temperature usually needs to be above 400 °C to achieve more than 80% NH3 conversion in conventional thermal ADR (TADR), which results in high energy consumption. In this work, an electrically driven, energy-saving gaseous ammonia decomposition reaction (EADR) strategy without external heating on a SiC-mediated Ru/Al2O3 composite catalyst is presented to achieve highly efficient ADR under much milder conditions than TADR. An 85% NH3 conversion was achieved at ca. 230 °C at weight hourly space velocities (WHSVs) of 12,000 mL gcat–1 h–1, close to the equilibrium conversion at the corresponding temperature, and a more than 4-fold reduction in energy consumption was achieved. The efficient EADR can be attributed to the enhanced N–N recombination and hydrogen migration at low temperatures due to the effective current carrier activation effect in the electric field. The energy-saving electrification strategy allows for solving the common dilemma of improving the NH3–H2 conversion efficiency at low temperatures without a complex catalyst design.
研究领域:
化学工程
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能源科学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Junjie Yang,Jihong Sun,Tao Yu,Jintong Yao,Kang Wei,Zhen Jiang,Mingjian Fang,Weilong Li
Hydrogel crosslinking varies in properties and stability, with many physiochemical crosslinkers boosting hydrogel performance but raising issues about biotoxicity, sourcing, and compatibility. Cordyceps polysaccharide, from the rare Chinese herb cordyceps, offers antioxidant and anti-cancer benefits without biological toxicity. This study developed a new hydrogel actuating membrane by crosslinking cordyceps polysaccharide with sodium alginate. Hydrogel Bio-mimetic Polymer Actuators (HBPA) were then assembled using non-metallic electrode membranes and tested for electrical actuation properties. A mechanoelectric coupling model was used to study the electrically actuated deflection system of HBPA. Results showed that a crosslinking ratio of 3:5 increased the peak output force density of HBPA to 21.95 mN/g. The actuation speed increased by 8.05 % compared to the basement membrane, while the duty ratio dropped by 80.8 %, significantly enhancing the tremor index. Tremor frequency and amplitude decreased by 43.52 % and 64.88 %, respectively. Electrochemically, specific capacitance grew 3.9 times, resistance fell by 21.7 %, and specific energy rose by 102.42 %. The actuating membrane featured a dense, uniform structure with evenly distributed pores and well-coordinated active groups at the optimal crosslinking ratio. At 4 V, HBPA demonstrated excellent electrical actuation and significant rebound at 0.1 Hz. Moreover, the mechanoelectric coupling model effectively applied to electroactive polymer materials.
研究领域:
材料科学
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生物医学工程
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高分子化学
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2022
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IF 10.383
Zhihao He,Shasha Jiao,Zhengping Wang,Yifan Wang,Mengyu Yang,Ye Zhang,Yiwei Liu,Yuanzhao Wu,Jie Shang,Qingming Chen,Run-Wei Li
Ionic polymer–metal composites (IPMC), one of the most popular materials in the field of artificial muscle research, have attracted much attention because of their high flexibility, low drive voltage (<10 V), high force density, large deformation, and so forth. However, the results show that the serious electrode fatigue crack and water loss of traditional IPMC greatly decrease its fatigue life and limit the practical application. In this study, we developed a novel liquid metal composite electrode. A layer of eutectic gallium–indium alloy (EGaIn) liquid metal was applied to the surface of the platinum electrode of the IPMC using a mask. Because of the good self-healing performance of the liquid metal, it is expected to solve the above problems of resistance increase and water loss caused by cracks. It turns out that the prepared EGaIn/Pt-IPMC exhibits a driving force up to 120 mN and maximum fatigue life of about 25,000 s at a driving voltage of 3 V. Compared with the best work reported, the fatigue strength of EGaIn/Pt-IPMC was increased by about 210%, and the maximum driving force of EGaIn/Pt-IPMC prepared by a single-layer basement membrane was between the IPMC prepared by 4–6 layer basement membrane. The electromechanical properties were significantly improved, and it is expected to realize a series of bionic applications.
研究领域:
材料科学
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生物仿生学
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智能材料
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产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-10
·
IF 15.7
Lin Jiuyang,Yu Zijian,Chen Tianci,Huang Junming,Chen Lianxin,Li Jiangjing,Li Xuewei,Huang Xiaolei,Luo Jianquan,Ang Elisa Yun Mei,Toh William,Wang Peng Cheng,Ng Teng Yong,Seo Dong Han,Zhao Shuaifei,Zhong Kuo,Xie Ming,Ye Wenyuan,Van der Bruggen Bart,Wan Yinhua
During the synthesis of dyes, desalination of high-salinity dye-containing waste liquor is a critical premise for high-quality, clean dye production. Conventional membrane processes, such as electrodialysis, nanofiltration and ultrafiltration, are inevitably subjected to serious membrane fouling, deteriorating the dye/salt fractionation efficacy. Integrating the technical merits of electrodialysis and pressure-driven membrane separation, we devise an electro-driven filtration process using a tight ultrafiltration membrane as alternative to conventional anion exchange membrane for rapid anion transfer, in view of dye desalination and purification. By employing a sub-4 nanometer tight ultrafiltration membrane as anion conducting membrane, the electro-driven filtration process achieves 98.15% desalination efficiency and 99.66% dye recovery for one-step fractionation of reactive dye and NaCl salt, markedly outperforming the system using commercial anion exchange membranes. Notably, the electro-driven filtration system displays a consistently high and stable fractionation performance for dyes and salts with unprecedentedly low membrane fouling through an eight-cycle continuous operation. Our results demonstrate that the electro-driven filtration process using nanoporous membranes as high-performance anion conducting membranes shows a critical potential in fractionation of organic dyes and inorganic salts, unlocking the proof of concept of nanoporous membranes in electro-driven application.
研究领域:
环境科学
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化学工程
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Lvting Wang,Jiangshan Zhuo,Junbo Peng,Huifeng Dong,Shengchao Jiang,Ye Shi
Electrically driven soft pumps act as ideal “hearts” for flexible fluidic systems in soft robots and wearable devices. Dielectric elastomers (DEs) are promising for soft pump fabrication owing to their features of fast response, large strain, high energy density, and low power consumption. However, conventional dielectric elastomer actuators (DEAs) using single DE material usually exhibit poor pumping performance due to electromechanical instability or insulating problems. Herein, a multilayer structured heterogeneous dielectric elastomer actuator (H-DEA) is fabricated based on thin films of processable, high-performance dielectric elastomer (PHDE) and silicones, and is integrated onto silicone pump body to build a fully soft pump. The pump achieves a flow rate of 3.25 mL min −1 and a blocked pressure of 2.75 kPa with a mass of less than 1 g and a power consumption of 0.21 W. It maintains pumping functions when being bent or stretched and after twisted. It works for viscous liquids and is demonstrated to drive a soft robotic fluidic circuit.
研究领域:
软体机器人
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材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2023
·Vol. 19
·期 34
·2301886
·
IF 13.3
Yingchao Zhang,Xiaoteng Jia,Bolun Sun,Ruonan Huang,Ce Wang,Danming Chao
Electrochromic (EC) reflective displays offer great advantages in delivering information and providing visual data, but are limited in dark environments. Reflective/emissive dual-modal displays capable of electrochemically-induced color and fluorescence change simultaneously are highly desirable, especially possessing rapid response speed as well as long-term durability. Herein, an electroactive fluorescent ionic liquid based on triphenylamine and imidazole (EFIL-TPA) has been synthesized for reflective/emissive dual-modal display. The resultant device exhibits outstanding electrochromic/electrofluorochromic (EC/EFC) performance with low driving voltage (below 1.0 V), fast switching speed (0.57–1.8 s), and remarkable cycling durability (91% retention for 10 000 cycles). A piezoelectric nanogenerator (PENG) driven EC/EFC integrated system is fabricated to harvest energy from human motion and visually drive the color/fluorescence change for human motion indication in both bright and dark environments. This innovative EC/EFC dual-modal display device based on EFIL-TPA supports a huge space for the development of self-powered human motion visualized indication in all-light conditions.
研究领域:
材料科学
·
显示技术
·
能源转换
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电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Yan Zhao,Jiajie Zhu,Jian Li,Zhijuan Zhao,Sebastian Ignacio Charchalac Ochoa,Jiangnan Shen,Congjie Gao,Bart Van der Bruggen
The chemical and mechanical stability of graphene nanosheets was used in this work to design a multilayer architecture of graphene, grafted with sulfonated 4,4′-diaminodiphenyl sulfone (SDDS). Quaternized poly(phenylene oxide) (QPPO) was synthesized and mixed with SDDS (rGO-SDDS-rGO@QPPO), yielding a multilayer graphene–organic framework (MGOF) with positive as well as negative functional groups that can be applied as a versatile electrodriven membrane in electrodialysis (ED). Multilayer graphene–organic frameworks are a new class of multilayer structures, with an architecture having a tunable interlayer spacing connected by cationic polymer material. MGOF membranes were demonstrated to allow for an excellent selective separation of monovalent anions in aqueous solution. Furthermore, different types of rGO-SDDS-rGO@QPPO membranes were found to have a good mechanical strength, with a tensile strength up to 66.43 MPa. The membrane (rGO-SDDS-rGO@QPPO-2) also has a low surface electric resistance (2.79 Ω·cm2) and a low water content (14.5%) and swelling rate (4.7%). In addition, the selective separation between Cl– and SO42– of the MGOF membranes could be as high as 36.6%.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Optical Materials
·
2025
·
IF 7.2
Xingzuo Li,Tianyi Liu,Suli Wu
Inverse opal photonic crystals (IOPC) have great potential in electrically driven device because of their fast response and excellent electrochromic properties. Nevertheless, the conventional IOPC comprises 74% air, which restricts the range of color-changing. Herein, high-WO 3 -proportion IOPC for the tunable and wide-range electrically driven structural color-changing device via a two-step filling method is fabricated. By utilizing PS@SiO 2 sphere-assembled opal as sacrificial templates, the filling proportion of WO 3 is significantly enhanced by utilizing the polymer that can swell in (NH 4 ) 6 H 2 W 12 O 40 solution to fill the etched regions of the SiO 2 layer. The fabricated devices exhibit a broad color gamut, enabling a wide color-changing from 653 nm to 430 nm. The fastest color-changing rate reached 193 nm −1 s under a reverse voltage of 3.9 V. Moreover, the device has excellent stability, maintaining superior color-changing capability in 100 cycles. The patterned device significantly enhances its integration, thereby facilitating practical applications.
研究领域:
材料科学
·
光学工程
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产品关联
DOI
高影响因子
Arabian Journal of Chemistry
·
2024
·
IF 5.3
Jingming Zhai,Heying Li,Shegan Gao,Hongbo Sun,Chuntao Zhao,Dongmei Yu,Xiantao Lin,Shaowen Cheng,Jinghua Li
Electrochemical technology is frequently used to treat industrial dye wastewater. However, its degradation efficiency is restricted by pH, and the low current efficiency and high energy consumption limit its broader application. Based on this, we constructed an innovative electro-driven catalytic system by integrating nanotechnology with electric current. This system operates without pH constraints, has low energy consumption, and allows for the recycle and reuse of both electrodes and catalysts. Firstly, we synthesized palladium (Pd) cubes via a solvothermal method, and characterized their morphology, structural composition, and crystalline properties using transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and other methods. The prepared Pd cubes possessed dual catalytic properties of electro-driven catalysis and Fenton catalysis, achieving a synergistic degradation effect under an electric field. Subsequently, the study explored how catalysts dosage, H 2 O 2 concentration, pH and Cl − concentration affect the catalytic rate. The optimized system was able to degrade 99.17 % of MB within 1 h and was effective against various organic pollutants. After five cycles of reuse, the recovered catalysts maintained over 90 % degradation efficiency in decomposing MB. This process realizes efficient degradation with a low concentration of catalysts, offering a novel approach for nanotechnology in wastewater treatment under electro-driven conditions.
研究领域:
环境科学
·
纳米技术
·
电化学工程
✓ 已验证
产品关联
DOI
高影响因子
Soft Matter
·
2024
·Vol. 20
·期 16
·3436-3447
·
IF 2.9
Yubing Han,Bori Shi,En Xie,Peng Huang,Yaozhong Zhou,Chang Xue,Weijia Wen,Huayan Pu,Mengying Zhang,Jinbo Wu
Flexible actuation materials play a crucial role in biomimetic robots. Seeking methods to enhance actuation and functionality is one of the directions in which actuators strive to meet the high-performance and diverse requirements of environmental conditions. Herein, by utilizing the method of adsorbing N-doped carbon dots (NCDs) onto SiO2 to form clusters of functional particles, a NCDs@SiO2/PDMS elastomer was prepared and its combined optical and electrical co-stimulation properties were effectively harnessed to develop a biomimetic crawling robot resembling Rhagophthalmus (firefly). The introduction of NCDs@SiO2 cluster particles not only effectively improves the mechanical and dielectric properties of the elastomer but also exhibits fluorescence response and actuation response under the co-stimulation of UV and electricity, respectively. Additionally, a hybrid dielectric elastomer actuator (DEA) with a transparent SWCNT mesh electrode exhibits two notable advancements: an 826% increase in out-of-plane displacement under low electric field stimulation compared to the pure matrix and the ability of NCDs to maintain a stable excited state within the polymer for an extended duration under UV-excitation. Simultaneously, the transparent biomimetic crawling robot can stealthily move in specific environments and fluoresce under UV light.
研究领域:
材料科学
·
仿生学
·
机器人学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）