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学者姓名：李王阳
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Abstract ：
微型超级电容器（Micro-Supercapacitors,MSCs）由于高功率密度和易于集成而被认为是极有前途的微型储能器件。但传统超级电容器制造工艺在结构定制上的局限性限制了其性能的进一步提升。3D打印技术因能快速成型地制造任意几何结构的电极和其他组件，以实现理想的电化学性能和简单集成，近年来引起了广泛关注。首先介绍了3D打印技术的分类和技术特点，然后综述了3D打印技术在微型超级电容器中应用的一些最新研究进展，最后对3D打印技术制备微型超级电容器的现有挑战和未来发展方向进行了总结与展望。
Keyword ：
3D打印 3D打印 储能 储能 微型超级电容器 微型超级电容器 电极 电极
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| GB/T 7714 | 姚品晶 , 李王阳 . 3D打印制备微型超级电容器的研究进展 [J]. | 科技与创新 , 2024 , PageCount-页数: 3 (16) : 104-106 . |
| MLA | 姚品晶 等. "3D打印制备微型超级电容器的研究进展" . | 科技与创新 PageCount-页数: 3 . 16 (2024) : 104-106 . |
| APA | 姚品晶 , 李王阳 . 3D打印制备微型超级电容器的研究进展 . | 科技与创新 , 2024 , PageCount-页数: 3 (16) , 104-106 . |
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随着各国对清洁可靠能源的需求不断增长,安全可靠的锌离子电池(ZIBs)有望取代锂离子电池(LIBs)成为新一代高效储能电池,然而传统的制造方法通常涉及昂贵或耗时的工艺,阻碍了其进一步的发展和产业化.近年来,3D打印技术逐步进入人们的视野,其能够简化制造流程,减少昂贵或复杂材料的损耗,从而显著降低了生产成本,对储能领域的发展起到重要的作用.针对3D打印技术,首先综述了2类主要打印技术,然后重点总结了3D打印技术在锌离子电池电极、集流体等组件中的最新应用,最后简要介绍了3D打印的未来和前景.
Keyword ：
3D打印 3D打印 制造工艺 制造工艺 电极 电极 锌离子电池 锌离子电池
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| GB/T 7714 | 叶峥嵘 , 李王阳 . 3D打印技术在锌离子电池中的应用进展 [J]. | 科技与创新 , 2024 , (24) : 188-190 . |
| MLA | 叶峥嵘 等. "3D打印技术在锌离子电池中的应用进展" . | 科技与创新 24 (2024) : 188-190 . |
| APA | 叶峥嵘 , 李王阳 . 3D打印技术在锌离子电池中的应用进展 . | 科技与创新 , 2024 , (24) , 188-190 . |
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Catalytic enantioselective borylation reactions of unsaturated bonds as powerful tools for the synthesis of diverse chiral organoboron compounds have gained much attention and have wide applications in various fields. However, the atroposelective arylboration reaction with carbon-carbon triple bonds of 1,3-enynes to obtain axially chiral 1,3-dienylboronates remains an elusive and significant challenge. Hence, we develop a cooperative copper- and palladium-catalyzed arylboration reaction to assemble plentiful function enriched axially chiral 1,3-dienylboronates in a single step from easily available 1,3-enynes, B2pin2, and aryl bromides with high levels of chemo-, regio-, stereo-, and atroposelectivity. The mild reaction conditions lead to good functional group tolerance, which is proven by the broad substrate scope and late-stage functionalizations of bioactive compounds or drug molecules. Moreover, the reaction can be easily scaled up, and a series of further transformations can be achieved. It is worth emphasizing that several olefin catalysts and ligands with axial chirality can also be synthesized through the corresponding elaborations of such products, which further explains the powerful transformative ability and application potential of such axially chiral 1,3-dienylboronates. The mechanism experiment and density functional theory (DFT) calculations revealed the cooperative process of copper and palladium catalysis, indicating that the chemoselectivity and regioselectivity of boration are determined by the enyne insertion step on copper, and the atroposelectivity is controlled by the further reductive elimination on the palladium center. Meanwhile, the calculation also demonstrated that the distinct interactions between the P=O and C=O groups with the Pd or Bpin center in the key transition state lead to the formation of products with varying configurations while employing identical configuration ligands.
Keyword ：
1,3-dienylboronates 1,3-dienylboronates 1,3-enynes 1,3-enynes arylboration arylboration asymmetric catalysis asymmetric catalysis axial chirality axial chirality
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| GB/T 7714 | Li, Wangyang , Chen, Haohua , Zheng, Yanping et al. Copper- and Palladium-Cocatalyzed Chemo-, Regio-, Stereo-, and Atroposelective Arylboration of 1,3-Enynes [J]. | ACS CATALYSIS , 2024 , 14 (15) : 11318-11331 . |
| MLA | Li, Wangyang et al. "Copper- and Palladium-Cocatalyzed Chemo-, Regio-, Stereo-, and Atroposelective Arylboration of 1,3-Enynes" . | ACS CATALYSIS 14 . 15 (2024) : 11318-11331 . |
| APA | Li, Wangyang , Chen, Haohua , Zheng, Yanping , Lu, Yong , Xie, Jinhui , Chen, Shanglin et al. Copper- and Palladium-Cocatalyzed Chemo-, Regio-, Stereo-, and Atroposelective Arylboration of 1,3-Enynes . | ACS CATALYSIS , 2024 , 14 (15) , 11318-11331 . |
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为满足快速发展的新能源产业与便携设备对高能量密度与高安全性电源的需求，高比能固态锂离子电池的开发成为当下的研究热点。氧化物固态电解质因高离子电导率、宽电压窗口及良好稳定性等诸多优势，被认为是实现高比能锂离子电池制备的极具潜力的固态电解质之一。为进一步提升氧化物固态电解质基固态锂离子电池的能量密度，需减小氧化物固态电解质的厚度并开发高压高容量的正负极材料。本文阐述了薄型氧化物固态电解质面临的主要挑战，从真空薄膜加工技术、湿化学法合成技术及复合电解质策略三方面，总结了薄型氧化物电解质在制造技术层面的最新进展。在电极材料的层面，总结了高比能固态锂电池正负极活性材料的研究现状，并针对其面临的核心问题(高电压、大比容量及高脱锂/嵌锂电位的正负极材料的开发)综述了近年来的一些重要研究成果。最后，对上述研究成果中涉及的先进技术和改进策略进行了总结，并对未来研究方向进行了展望。
Keyword ：
固态电解质 固态电解质 固态锂电池 固态锂电池 材料设计 材料设计 氧化物 氧化物 高能量密度 高能量密度
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| GB/T 7714 | 杨名 , 吴燔 , 李王阳 . 基于氧化物固态电解质的高比能固态锂离子电池开发策略 [J]. | 功能材料与器件学报 , 2024 , 30 (02) : 89-95 . |
| MLA | 杨名 et al. "基于氧化物固态电解质的高比能固态锂离子电池开发策略" . | 功能材料与器件学报 30 . 02 (2024) : 89-95 . |
| APA | 杨名 , 吴燔 , 李王阳 . 基于氧化物固态电解质的高比能固态锂离子电池开发策略 . | 功能材料与器件学报 , 2024 , 30 (02) , 89-95 . |
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The application of 3D printing technology in fabricating quasi-solid-state micro-supercapacitors (MSCs) offers inherent benefits in programmable structural design and high-mass-loading electrode fabrication. Nevertheless, the absence of high-performance printable inks and the sluggish ion transport within thick electrodes present significant challenges to their practical charge storage capabilities. Here, a new NiCo2S4-based nanocomposite ink with excellent rheological properties has been successfully developed and the 3D structure of quasi-solid-state MSCs is rationally engineered through the direct-ink-writing 3D printing technology. Beneficial from the firmly anchored NiCo2S4 nanoparticles on the reduced graphene oxide (rGO) and the ordered 3D micropores, the thick electrodes with serrated architectures provide abundant reaction sites and exhibit enhanced ion transport. Consequently, the MSCs with triple-layer-serrated electrodes can deliver a high areal capacitance up to 416.7 mF cm(-2). In comparison to the latticed counterparts, the areal capacitances of serrated MSCs with single-, double-, and triple-layer electrodes are amplified by 127.1%, 349.8%, and 585.9%, respectively (under 1 mA cm(-2)). This study offers novel insights into the cross-scale design of materials and electrode architectures for quasi-solid-state MSCs with high areal capacitance, promoting their integration into flexible and portable electronic devices.
Keyword ：
3D printing 3D printing direct ink writing direct ink writing high-areal capacitance high-areal capacitance micro-supercapacitor micro-supercapacitor quasi-solid-state quasi-solid-state
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| GB/T 7714 | Yao, Pinjing , Li, Wangyang , Ke, Bingyuan et al. 3D printing of serrated NiCo2S4-based electrodes for wearable micro-supercapacitors [J]. | SCIENCE CHINA-MATERIALS , 2024 , 67 (6) : 1956-1964 . |
| MLA | Yao, Pinjing et al. "3D printing of serrated NiCo2S4-based electrodes for wearable micro-supercapacitors" . | SCIENCE CHINA-MATERIALS 67 . 6 (2024) : 1956-1964 . |
| APA | Yao, Pinjing , Li, Wangyang , Ke, Bingyuan , Chen, Lihui , Jian, Yijia , Qiao, Huawei et al. 3D printing of serrated NiCo2S4-based electrodes for wearable micro-supercapacitors . | SCIENCE CHINA-MATERIALS , 2024 , 67 (6) , 1956-1964 . |
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Two-dimensional (2D) metal oxides (2DMOs), such as MoO2, have made impressive strides in recent years, and their applicability in a number of fields such as electronic devices, optoelectronic devices and lasers has been demonstrated. However, 2DMOs present challenges in their synthesis using conventional methods due to their non-van der Waals nature. We report that KCl acts as a flux to prepare large-area 2DMOs with sub-millimeter scale. We systematically investigate the effects of temperature, homogeneous time and cooling rate on the products in the flux method, demonstrating that in this reaction a saturated homogenous solution is obtained upon the melting of the salt and precursor. Afterward, the cooling rate was adjusted to regulate the thickness of the target crystals, leading to the precipitation of 2D non-layered material from the supersaturated solution; by applying this method, the highly crystalline non-layered 2D MoO2 flakes with so far the largest lateral size of up to sub-millimeter scale (similar to 464 mu m) were yielded. Electrical studies have revealed that the 2D MoO2 features metallic properties, with an excellent sheet resistance as low as 99 Omega center dot square(-1) at room temperature, and exhibits a property of charge density wave in the measurement of resistivity as a function of temperature.
Keyword ：
2D non-layered materials 2D non-layered materials Flux method Flux method Metallic Metallic Metal oxide Metal oxide Thickness modulation Thickness modulation
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| GB/T 7714 | Deng, Li-Ying , Zhang, Qing , Li, Wang-Yang et al. KCl acts as a flux to assist the growth of sub-millimeter-scale metallic 2D non-layered molybdenum dioxide [J]. | RARE METALS , 2024 , 44 (1) : 404-416 . |
| MLA | Deng, Li-Ying et al. "KCl acts as a flux to assist the growth of sub-millimeter-scale metallic 2D non-layered molybdenum dioxide" . | RARE METALS 44 . 1 (2024) : 404-416 . |
| APA | Deng, Li-Ying , Zhang, Qing , Li, Wang-Yang , Ye, Xiao-Yuan , Zhao, Yi-Fan , Chen, Shen-Zhong et al. KCl acts as a flux to assist the growth of sub-millimeter-scale metallic 2D non-layered molybdenum dioxide . | RARE METALS , 2024 , 44 (1) , 404-416 . |
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Beyond the high theoretical capacity, conversion-alloying metal chalcogenides (CAMCs) exhibit exceptional high-rate performance as Li-ion battery electrodes. However, the inherent origin of the high-rate performance remains elusive, especially given the lower intrinsic conductivity of CAMCs. Here, the correlation between phase evolution and charge transport dynamics in fully activated CAMCs is systematically investigated, elucidating a current-adaptive Li-ion storage mechanism to explain the anomalous high-rate performance. Briefly, the deconversion reaction manipulated by ion diffusion acts as a "regulator" to adaptively modulate the transition from metal (high electronic conductivity) and lithium chalcogenides (high ionic conductivity) to CAMCs, thus removing the charge transport bottleneck without affecting the formation of the metal feedstock required for the alloying reaction. On this basis, the high capacity can be maintained at high rates through a "fading-free" alloying reaction. This study offers a novel perspective for the design of high-rate electrode materials. The high-rate performance of conversion-alloying metal chalcogenides is accomplished through a current-adaptive mechanism: they autonomously adjust their conversion/deconversion reactivity at high rates to enhance charge transport and achieve a "fading-free" alloying/dealloying reaction, akin to the self-protection mechanism observed in lizards. image
Keyword ：
alloying alloying conversion conversion current-adaptive current-adaptive high rate high rate Li-ion battery Li-ion battery
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| GB/T 7714 | Li, Wangyang , Deng, Liying , Cao, Jiaqi et al. Current-Adaptive Li-Ion Storage Mechanism in High-Rate Conversion-Alloying Metal Chalcogenides [J]. | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (44) . |
| MLA | Li, Wangyang et al. "Current-Adaptive Li-Ion Storage Mechanism in High-Rate Conversion-Alloying Metal Chalcogenides" . | ADVANCED FUNCTIONAL MATERIALS 34 . 44 (2024) . |
| APA | Li, Wangyang , Deng, Liying , Cao, Jiaqi , Ke, Bingyuan , Wang, Xinghui , Ni, Shibing et al. Current-Adaptive Li-Ion Storage Mechanism in High-Rate Conversion-Alloying Metal Chalcogenides . | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (44) . |
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