Yang Luo

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Luo

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Yang

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0000-0003-4536-3457

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Publications 1 - 10 of 17

Addressing Challenges and Enhancing Performance of Manganese-based Cathode Materials in Aqueous Zinc-Ion Batteries
Qin, Doudou; Ding, Junyang; Liang, Chu; et al. (2024)
Acta Physico-Chimica Sinica
Non-renewable energy sources such as fossil fuels are increasingly depleted. In order to cope with the potential energy crisis, it is urgent to develop clean and efficient renewable energy sources. Advanced energy storage technology based on electrical energy holds critical significance to the sustainable and steady development of human society. Aqueous rechargeable batteries are a kind of promising electrochemical energy storage devices. Zinc-ion batteries (ZIBs) are gaining increasing popularity due to their safety, sustainability, cost-effectiveness and high energy density, positioning them as potential successors to current Lithium-ion batteries (LIBs) with a high degree of commercialization. The extraordinary mechanical flexibility and excellent electrochemical performance exhibited by ZIBs holds great significance in advancing the development of flexible and wearable batteries. Manganese-based oxides with large channel size possess the characteristics of high theoretical capacity, various oxidation states (including +2, +3, +4) and low cost, which are commonly employed as cathode materials for AZIBs. Nevertheless, the electrochemical performance of current manganese-based ZIBs is not satisfactory, facing the challenges of metal dissolution, material structure instability, notably a strong electrostatic interaction exhibited by divalent Zn2+ ions in the host structure resulting in slow transmission kinetics. These challenges contribute to low cycle stability of the battery, impeding practical application and the progression of ZIBs. To solve these problems, diverse structural engineering strategies including defect engineering have been exploited, which can effectively improve the transport kinetics of zinc ions. From the perspective of enhancing the performance of the material itself, interlayer intercalation and other measures can be taken to better the microstructure or morphology of manganese-based materials. By improving the electrical conductivity of the material and enhancing ionic bonding, the structural stability and electrochemical performance of the material can be effectively improved. And from the angle of battery design, in order to improve the stability of the electrode-electrolyte interface, the electrolyte is optimized, or a fresh preparation method different from the conventional slurry coating process is adopted, which is also a promising method to design a new electrode without binder and the electrode components can still be evenly distributed. This review provides an overview of Zinc-ion storage mechanisms: the reversible Zn2+ insertion/extraction; the reversible interposition and deintercalation of Zn2+ and H+; the chemical conversion reactions, and the mechanism of dissolution-deposition reaction. Furthermore, the challenges faced by manganese-based cathode materials are clarified, and the optimization strategies to improve their electrochemical performance by increasing active sites, reducing solid-state diffusion energy barriers, inhibiting the dissolution of active substances, and improving material stability are highlighted. Finally, the practical application and potential of ZIBs assembled by manganese-based cathode materials in biomedical equipment and other electronic devices are also discussed.
Epidermal visualized health monitoring system based on stretchable and washable TPU hybrid conductive microtextiles
Yuan, Jing-Bo; Feng, Zhi-Hong; Li, Dong-Chan; et al. (2024)
Rare Metals
Electronic textiles, an emerging class of electronic technology, offer exciting opportunities for seamless integration with the human body. Numerous applications have been developed based on electronic textiles. However, researches on integrating multiple electronic textile-based devices are still few. In this study, we present a system integrated with an electrocardiogram monitoring sensor and an electroluminescence device based on stretchable and washable conductive microtextiles. The signal is acquired by an electrocardiograph amplifier and displayed by a dual-color electroluminescence device based on the processed results. The integrated electronic device has excellent moisture permeability and comfort for long-term wearing. The system reported in this study opens a new avenue for the application of electronic textiles in health monitoring, robotic prosthetics, and competitive sports.
Unleashing the Potential of MXene-Based Flexible Materials for High-Performance Energy Storage Devices
Zhou, Yunlei; Yin, Liting; Xiang, Shuangfei; et al. (2024)
Advanced Science
Since the initial discovery of Ti3C2 a decade ago, there has been a significant surge of interest in 2D MXenes and MXene-based composites. This can be attributed to the remarkable intrinsic properties exhibited by MXenes, including metallic conductivity, abundant functional groups, unique layered microstructure, and the ability to control interlayer spacing. These properties contribute to the exceptional electrical and mechanical performance of MXenes, rendering them highly suitable for implementation as candidate materials in flexible and wearable energy storage devices. Recently, a substantial number of novel research has been dedicated to exploring MXene-based flexible materials with diverse functionalities and specifically designed structures, aiming to enhance the efficiency of energy storage systems. In this review, a comprehensive overview of the synthesis and fabrication strategies employed in the development of these diverse MXene-based materials is provided. Furthermore, an in-depth analysis of the energy storage applications exhibited by these innovative flexible materials, encompassing supercapacitors, Li-ion batteries, Li-S batteries, and other potential avenues, is conducted. In addition to presenting the current state of the field, the challenges encountered in the implementation of MXene-based flexible materials are also highlighted and insights are provided into future research directions and prospects.
Metal Phosphorous Chalcogenide: A Promising Material for Advanced Energy Storage Systems
Zhang, Hao; Meng, Ge; Liu, Qian; et al. (2023)
Small
The development of efficient and affordable electrode materials is crucial for clean energy storage systems, which are considered a promising strategy for addressing energy crises and environmental issues. Metal phosphorous chalcogenides (MPX3) are a fascinating class of two-dimensional materials with a tunable layered structure and high ion conductivity, making them particularly attractive for energy storage applications. This review article aims to comprehensively summarize the latest research progress on MPX3 materials, with a focus on their preparation methods and modulation strategies. Additionally, the diverse applications of these novel materials in alkali metal ion batteries, metal-air batteries, and all-solid-state batteries are highlighted. Finally, the challenges and opportunities of MPX3 materials are presented to inspire their better potential in energy storage applications. This review provides valuable insights into the promising future of MPX3 materials in clean energy storage systems.
Advantages and Technological Progress of Hydrogen Fuel Cell Vehicles
Mo, Tiande; Li, Yu; Luo, Yang (2023)
World Electric Vehicle Journal
Cross-Link-Dependent Ionogel-Based Triboelectric Nanogenerators with Slippery and Antireflective Properties
Wu, Yinghong; Cuthbert, Tyler; Luo, Yang; et al. (2023)
Small
Given the ability to convert various ambient unused mechanical energies into useful electricity, triboelectric nanogenerators (TENGs) are gaining interest since their inception. Recently, ionogel-based TENGs (I-TENGs) have attracted increasing attention because of their excellent thermal stability and adjustable ionic conductivity. However, previous studies on ionogels mainly pursued the device performance or applications under harsh conditions, whereas few have investigated the structure-property relationships of components to performance. The results indicate that the ionogel formulation-composed of a crosslinking monomer with an ionic liquid-affects the conductivity of the ionogel by modulating the cross-link density. In addition, the ratio of cross-linker to ionic liquid is important to ensure the formation of efficient charge channels, yet increasing ionic liquid content delivers diminishing returns. The ionogels are then used in I-TENGs to harvest water droplet energy and the performance is correlated to the ionogels structure-property relationships. Improvement of the energy harvesting is further explored by the introduction of surface polymer brushes on I-TENGs via a facile and universal method, which enhances droplet sliding by means of ideal surface contact angle hysteresis and improves its anti-reflective properties by employing the I-TENG as a surface covering for solar cells.
Advanced strategies for solid electrolyte interface design with MOF materials
Lu, Guolong; Meng, Ge; Liu, Qian; et al. (2024)
Advanced Powder Materials
Emerging energy technologies, aimed at addressing the challenges of energy scarcity and environmental pollution, have become a focal point for society. However, these actualities present significant challenges for modern energy storage devices. Lithium metal batteries (LMBs) have gained considerable attention due to their high energy density. Nonetheless, their use of liquid electrolytes raises safety concerns, including dendritic growth, electrode corrosion, and electrolyte decomposition. In light of these challenges, solid-state batteries (SSBs) have emerged as a highly promising next-generation energy storage solution by leveraging lithium metal as the anode to achieve improved safety and energy density. Metal organic frameworks (MOFs), characterized by their porous structure, ordered crystal frame, and customizable configuration, have garnered interest as potential materials for enhancing solid-state electrolytes (SSEs) in SSBs. The integration of MOFs into SSEs offers opportunities to enhance the electrochemical performance and optimize the interface between SSEs and electrodes. This is made possible by leveraging the high porosity, functionalized structures, and abundant open metal sites of MOFs. However, the rational design of high-performance MOF-based SSEs for high-energy Li metal SSBs (LMSSBs) remains a significant challenge. In this comprehensive review, we present an overview of recent advancements in MOF-based SSEs for LMSSBs, focusing on strategies for interface optimization and property enhancement. We categorize these SSEs into two main types: MOF-based quasi-solid-state electrolytes and MOF-based all solid-state electrolytes. Within these categories, various subtypes are identified based on the combination mode, additional materials, formation state, preparation method, and interface optimization measures employed. The review also highlights the existing challenges associated with MOF materials in SSBs applications and proposes potential solutions and future development prospects to guide the advancement of MOFs-based SSEs. By providing a comprehensive assessment of the applications of MOFs in LMSSBs, this review aims to offer valuable insights and guidance for the development of MOF-based SSEs, addressing the key issues faced by these materials in SSBs technology.
High-entropy alloys in water electrolysis: Recent advances, fundamentals, and challenges
Zhang, Quan; Lian, Kang; Qi, Gaocan; et al. (2023)
Science China Materials
As a clean energy carrier, hydrogen energy has become part of the global clean energy strategy and one of the necessary routes to achieve global carbon neutrality. Driven by renewable electricity, water electrolysis promises to be an ideal long-term hydrogen production method that can realize net zero carbon emissions. Compared with conventional alloys, high-entropy alloys (HEAs) have much more catalytic active sites due to their unique structural features including occupation disorder and lattice ordering. They have various promising applications in the field of hydrolysis catalysts. Herein, in this review, the mechanisms of electrolysis of water, catalytic principles of HEAs in hydrolysis processes and latest research progress of HEAs as water electrolysis catalysts are summarized. We also provide perspectives on the difficulties and potential linked to novel HEA design approaches in this attractive sector, with a focus on the connection between both the surface morphology and the catalysis activity. The compositions and possible applications of HEAs in water electrolysis and other emerging fields are outlined.
Trends and Emerging Technologies for the Development of Electric Vehicles
Mo, Tiande; Li, Yu; Lau, Kin-tak; et al. (2022)
Energies
In response to severe environmental and energy crises, the world is increasingly focusing on electric vehicles (EVs) and related emerging technologies. Emerging technologies for EVs have great potential to accelerate the development of smart and sustainable transportation and help build future smart cities. This paper reviews new trends and emerging EV technologies, including wireless charging, smart power distribution, vehicle-to-home (V2H) and vehicle-to-grid (V2G) systems, connected vehicles, and autonomous driving. The opportunities, challenges, and prospects for emerging EV technologies are systematically discussed. The successful commercialization development cases of emerging EV technologies worldwide are provided. This review serves as a reference and guide for future technological development and commercialization of EVs and offers perspectives and recommendations on future smart transportation.
Defect Engineering To Tailor Metal Vacancies in 2D Conductive Metal-Organic Frameworks: An Example in Electrochemical Sensing
Luo, Yang; Wu, Yinghong; Braun, Artur; et al. (2022)
ACS Nano
Two-dimensional conductive metal–organic frameworks (2D conductive MOFs) with π–d conjugations exhibit high electrical conductivity and diverse coordination structures, making them constitute a desirable platform for new electronic devices. Defects are inevitable in the self-assembly process of 2D conductive MOFs. Arguably, defect engineering that deliberately manipulates defects demonstrates great potential to enhance the electrocatalytic activity of this family of novel materials. Herein, a facile and universal defect engineering strategy is proposed and demonstrated for metal vacancy regulation of metal benzenehexathiolato (BHT) coordination polymer films. Controllable metal vacancies can be produced by simply tuning the proton concentration during the confined self-assembly process at the liquid–liquid interface. This facile but universal defect design strategy has been proven to be effective in a class of materials including Cu-BHT, Ni-BHT, and Ag-BHT for physicochemical regulation. To further demonstrate the feasibility and practicality in electrochemical applications, the elaborately fabricated Cu-BHT films with abundant Cu vacancies deliver competitive performance in electrocatalytic sensing of H2O2. Mechanistic analysis revealed that the Cu vacancies act as effective active sites for adsorption and reduction of H2O2, and the tuned electronic structure boosts the electrocatalytic reaction. The developed advanced sensing platform confirms the excellent commercial potential of Cu-BHT sensors for H2O2. The findings provide insights into the molecular structure design of 2D conducting MOFs by defect engineering and demonstrate the commercial potential of Cu-BHT electrochemical sensors.

Publications 1 - 10 of 17

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