Article
Engineering, Environmental
Yuanhui Su, Yu Huan, Bo Peng, Xinjian Wang, Longwen Wu, Tao Wei
Summary: An effective strategy to enhance the energy storage density and efficiency of dielectric polymers is proposed by constructing a heterostructure of Ba0.4Sr0.6TiO3/MnO2 in BST/MnO2/P(VDF-HFP)& PMMA composites. The tight attachment of MnO2 on BST particles improves the local electric field intensity, enhancing polarization. Additionally, the semiconductive MnO2 can trap injected and excited electrons and inhibit the mobility of free charge carriers, leading to improved energy storage performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Keshab Pandey, Hae Kyung Jeong
Summary: Nitrogen-doped porous activated carbon synthesized from coffee waste shows high specific capacitance and excellent cycling performance, making it a promising candidate for flexible supercapacitor electrodes.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Energy & Fuels
Menghan Tian, Xueqing Liu, Xungang Diao, Xiaolan Zhong
Summary: The conductive polymer polyaniline (PANI) has been widely studied in the field of electrochromic energy storage devices (EESDs) for its rich color changes and good pseudocapacitive properties. A PANI and MnO2 nanocomposite structure with a coral-like nano-porous architecture was synthesized using a one-step electrodeposition approach. The rough coral-like structure provides a large quantity of nano porous ion transport channels, significantly improving the working voltage range and cycling stability of the electrode. A complementary full EESD was also constructed, allowing real-time observation of the EESD operating state based on color change. It exhibited stable performance under a large voltage window with good bistable performance and fast response speed.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Materials Science, Multidisciplinary
Zewen Fan, Jing Ren, Fa Zhang, Tao Gu, Shaofei Zhang, Rui-Peng Ren, Yong-Kang Lv
Summary: In this study, a flexible and self-healing supercapacitor was successfully prepared by sandwiching a self-healing electrolyte between two electrode films. The supercapacitor exhibited excellent electrochemical performance, self-healing capability, and flexibility.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Junyan Chen, Jiaxing Liang, Yang Zhou, Zhao Sha, Sean Lim, Feng Huang, Zhaojun Han, Sonya A. Brown, Liuyue Cao, Da-Wei Wang, Chun H. Wang
Summary: The study introduced a novel MnO2-vertical graphene cathode to enhance the electrochemical performance of Zn batteries, achieving high capacity and cycling stability. Additionally, the battery demonstrated high energy density and excellent electrochemical stability under mechanical loading conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Engineering, Electrical & Electronic
Hanbee Lee, Soyeong Jeong, Jae-Hyun Kim, Yong-Ryun Jo, Hyeong Ju Eun, Byoungwook Park, Sung Cheol Yoon, Jong H. Kim, Seung-Hoon Lee, Sungjun Park
Summary: This paper introduces a strain-durable ultra-flexible semitransparent organic photovoltaic (OPV) device with a thickness below 2 μm. By achieving conformal surface coverage of nanoscale thin metal electrodes, the device exhibits extremely low flexural rigidity and high strain durability. After 1000 cycles of repetitive compression and release at 66% compressive strain, the device maintains over 73% of its initial efficiency, with average visible light transmittances higher than 30%.
NPJ FLEXIBLE ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Shradha Dutt, Sonali Verma, Anoop Singh, Prerna Mahajan, Bhavya Padha, Aamir Ahmed, Sheng-Joue Young, Vinay Gupta, Dena N. Qasim Agha, Sandeep Arya
Summary: This study investigates the structural and electrochemical performance of an electrodeposited MnO2/ rGO-conductive fabric nanocomposite as a binder-free electrode for supercapacitors. The results show significant capacitance and outstanding cyclic stability of the synthesized nanocomposite.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Electrochemistry
Yunming Jia, Xiaying Jiang, Arsalan Ahmed, Lan Zhou, Qinguo Fan, Shao Jianzhong
Summary: A steerable method was utilized to generate core-shell alpha-MnO2/graphene fibers, exhibiting outstanding mechanical flexibility and advantageous performance in fiber-shaped supercapacitors. The high voluminal specific capacitance, cyclic stability, and energy density were achieved due to the porous network structures of the MnGFs. The microfluidic spinning strategy could potentially promote the progress of wearable electronic products by providing a new-style design method for efficient electrode materials.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Energy & Fuels
Assia Tounsi, Abdelfetteh Sayah, Leila Lamiri, Noureddine Boumaza, Farid Habelhames, Ahmed Bahloul, Chouaib Chenni, Belkacem Nessark, Mohammad Alam Saeed
Summary: The FTO/MnO2-Graphene composite was prepared using a one-step electrochemical approach and the resulting film exhibited a unique structure with a large surface area, making it suitable for various applications including supercapacitor electrodes and energy storage devices.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Paper & Wood
Yanan Yin, Jiacheng He, Chenggang Zhang, Jisi Chen, Jinxing Wu, Zhuqun Shi, Chuanxi Xiong, Quanling Yang
Summary: This study developed high-performance and environmentally friendly RC-AO dielectric nanocomposites by incorporating Al2O3 nanoparticles into regenerated cellulose matrix, demonstrating excellent dielectric properties and energy storage density.
Article
Chemistry, Physical
Kaidi Li, Jialun Li, Liying Wang, Xuesong Li, Xijia Yang, Wei Lu
Summary: To meet the requirements for green energy, high-performance renewable energy technology based on earth-abundant materials is crucial. Aqueous zinc-ion hybrid supercapacitors (ZSC) have great potential for sustainable electrochemical energy storage, but their cycling stability and energy density need improvement. This study demonstrates that nitrogen-doped MnO2 nanowalls can enhance the performance of ZSC devices, resulting in high energy density and excellent cycle stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Fan Zeng, Xianyin Song, Jing Liang, Xingang Zhang, Xuefeng Sha, Xueli Wu, Hongtao Zhou, Zhi Liu, Wei Wu, Changzhong Jiang
Summary: In this study, a three-dimensional porous carbon fiber and metal-oxide multi-conductive ink was developed to construct aqueous flexible supercapacitors with broad working voltage and high energy density. The electrodes of these supercapacitors exhibit excellent electronic and ionic diffusion/transport properties, as well as accelerated redox kinetics. The assembled flexible supercapacitor demonstrates remarkable flexibility and high power density while maintaining a high capacitance retention after bending cycles.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Energy & Fuels
Jie Lv, Jianrong Wang, Jianjun Wang, Ting Zhang, Bochao Yang, Ziwei Zhen, Yi Zheng, Yi Wang
Summary: Medical dressings with temperature regulating function can promote wound recovery and cure chronic diseases. A Kevlar nanofibrous film (AKD) containing n-Docosane (DE) and silver nanowires (AgNWs) with active photo-thermal conversion and thermal energy storage properties was developed to address the outdoor heat source of thermal compress film. The AKD film exhibited a layered structure with excellent heat storage capacity, impressive mechanical and flexible properties, rapid photo-thermal response, and stable heat release performance, making it promising for thermal compress therapy.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Zhexuan Liu, Liping Qin, Bingan Lu, Xianwen Wu, Shuquan Liang, Jiang Zhou
Summary: This Perspective provides an overview of the working mechanisms, insufficiency, optimization, and future development of aqueous Mn2+/MnO2-based batteries. The existing issues and deficiency have been analyzed, and optimization strategies have been summarized and discussed. Testing methods and performance assessment proposals are presented.
Article
Chemistry, Physical
Bingtian Zhao, Min Wang, Siliang Wang, Tong Ni, Qiang Wang, Limin Ruan, Linsheng Huang, Wei Zeng
Summary: The study introduces a rechargeable fibrous Zn-MnO2 battery with high safety, low cost, and high energy density, which shows remarkable flexibility and self-healability under harsh environment, providing an effective strategy for developing high-efficiency fibrous energy storage devices.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Multidisciplinary Sciences
Huanyu Jin, Xinyan Liu, Pengfei An, Cheng Tang, Huimin Yu, Qinghua Zhang, Hong-Jie Peng, Lin Gu, Yao Zheng, Taeseup Song, Kenneth Davey, Ungyu Paik, Juncai Dong, Shi-Zhang Qiao
Summary: In this study, a new heteroatom-doping method is reported, which utilizes dynamic electron accepting-donating to enhance the activity and stability of RuO2 catalysts for acidic oxygen evolution reaction.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Shengmei Chen, Yiran Ying, Longtao Ma, Daming Zhu, Haitao Huang, Li Song, Chunyi Zhi
Summary: The authors address the contradictory demands from zinc metal anode and cathodes in zinc metal batteries by designing an asymmetric electrolyte composed of an inorganic solid-state electrolyte and a hydrogel electrolyte.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Haifeng Shen, Huanyu Jin, Haobo Li, Herui Wang, Jingjing Duan, Yan Jiao, Shi-Zhang Qiao
Summary: Authors developed a phase-engineered SnS pre-catalyst that stabilizes sulfur dopants for selective CO2-to-HCOOH electrolysis at high current densities in acidic medium. This study is important for achieving sustainable CO2 transformations into value-added products.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Ke Fan, Yiran Ying, Zezhou Lin, Yuen Hong Tsang, Haitao Huang
Summary: This study develops a three-tier model to accelerate the search for efficient G-BACs catalysts and elucidates the origin of their catalytic activity. It is found that E-b during the charging process of G-BACs in Na-S batteries is linearly correlated with E-diff, the difference in adsorption energy between the initial and final states of Na2S decomposition. Machine learning approaches correlate E-diff with intrinsic properties of metal elements and reveal that the most significant elemental feature is the outer electron number. This study not only accelerates the design of efficient G-BACs based on the structure-activity relationship, but also provides a feasible strategy for the fast screening of catalysts for other electrochemical reactions.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Yiran Ying, Zezhou Lin, Haitao Huang
Summary: In this study, we propose an edge/basal plane half-reaction separation mechanism for 2D photocatalysts in water splitting, which shows superior photocatalytic efficiency. By designing a group of stable and potentially exfoliable 2D rhodium chalcogenide halide photocatalysts, the half-reactions for hydrogen and oxygen evolution can be spatially separated, allowing simultaneous water splitting without sacrificial reagents or cocatalysts.
ACS ENERGY LETTERS
(2023)
Review
Chemistry, Physical
Ruinan He, Nengneng Xu, Israr Masood Ul Hasan, Luwei Peng, Lulu Li, Haitao Huang, Jinli Qiao
Summary: In the context of global energy transition and environmental concerns, electrochemical conversion of carbon dioxide (CO2) to valuable chemicals using clean renewable electricity has emerged as a promising approach for carbon capture, utilization, and storage (CCUS) technology, with potential economic benefits. However, the development of efficient and stable electrochemical CO2 reduction (ECO2R) electrolyzers to fully exploit the catalytic potential remains a challenge that has not received sufficient attention. This review summarizes the progress in ECO2R reactors, including their structural characteristics and electrochemical performance, and discusses the current challenges and limitations in CO2RR reactor design. The goal is to provide insights into the advancements in ECO2R electrolyzers for large-scale industrial applications of ECO2R.
Article
Materials Science, Multidisciplinary
Zhouyang Zhang, Yiran Ying, Ziyu Wu, Jiawei Huang, Min Gan, Haitao Zhang, Haitao Huang, Yangbo Zhou, Linfeng Fei
Summary: Single-crystal-to-single-crystal (SCSC) phase transformation is essential for the controllable synthesis of advanced materials. However, understanding the atomic-scale mechanisms during SCSC transformation remains a challenge due to the lack of direct experimental probes. In this study, using in-situ transmission electron microscopy, the nucleation and growth mechanisms of a hexagonal phase in a monoclinic matrix during a heating-induced structural transformation were observed. The findings provide crucial insights into the microscopic mechanisms and kinetics of solid-state phase transitions.
Review
Chemistry, Physical
Nan Li, Keyu Xie, Haitao Huang
Summary: This paper systematically reviews the research progress on ferroelectric materials for high energy density batteries. It introduces the fundamental understanding and working mechanism of ferroelectric materials, and analyzes the challenges faced by each component in high energy density batteries. The modification strategies of utilizing ferroelectric materials to improve the ion transport kinetics are summarized, and the existing problems and development directions of ferroelectric materials are proposed.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Tao Zhang, Ji Kong, Chao Shen, Shengjie Cui, Zezhou Lin, Yuyu Deng, Minghao Song, Lifang Jiao, Haitao Huang, Ting Jin, Keyu Xie
Summary: This study introduces acetic acid in layered cathode materials to form sodium acetate and successfully achieves efficient sodium compensation. Based on sodium compensation, the capacity retention and energy density of the battery have been significantly improved.
ACS ENERGY LETTERS
(2023)
Review
Multidisciplinary Sciences
Huanyu Jin, Jun Xu, Hao Liu, Haifeng Shen, Huimin Yu, Mietek Jaroniec, Yao Zheng, Shi-Zhang Qiao
Summary: This review systematically examines recent advances in electrocatalytic seawater splitting and evaluates the obstacles to optimizing water supply, materials, and devices for stable hydrogen production from seawater. The study demonstrates that robust materials and innovative technologies, especially selective catalysts and high-performance devices, are critical for efficient seawater electrolysis. Furthermore, the review outlines and discusses future directions that could advance the techno-economic feasibility of this emerging field, providing a roadmap toward the design and commercialization of materials that can enable efficient, cost-effective, and sustainable seawater electrolysis.
Article
Chemistry, Physical
Haifa Qiu, Tong Yang, Jun Zhou, Ke Yang, Yiran Ying, Keda Ding, Ming Yang, Haitao Huang
Summary: Using ferroelectric BaTiO3 as a model system, this study investigates the impact of polarization states on the hydrogen evolution reaction (HER) performance. The results reveal that BaTiO3 with in-plane polarization exhibits improved HER activity, while the out-of-plane polarization does not. Surface rumpling induced by surface relaxation and polarization states play a crucial role in determining the surface polarization and significantly affect the chemical reactivity of surface oxygen.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Zhenhao Fan, Shuaibing Gao, Yunfei Chang, Dawei Wang, Xin Zhang, Haitao Huang, Yunbin He, Qingfeng Zhang
Summary: Current polymer nanocomposites for energy storage suffer from low discharged energy density and efficiency at high temperature. To solve this problem, polyetherimide (PEI) nanocomposites filled with core-shell structured nanoparticles are developed, which consist of a PLZST antiferroelectric core and an Al2O3 shell. The PLZST core provides a wide temperature range of low remnant electric displacement, improving the electric displacement-electric field loops of the nanocomposites. The Al2O3 shell with similar dielectric constant to the PEI matrix and high thermal conductivity enhances breakdown strength and suppresses conduction loss, resulting in an ultrahigh discharged energy density of 10.20 J cm(-3) at 150 degrees C and a large efficiency of 83.5%.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Xinyu Wang, Yiran Ying, Shengmei Chen, Qingjun Meng, Haitao Huang, Longtao Ma
Summary: Rechargeable Zinc battery technologies are considered promising for large-scale energy storage. However, the polarity of water molecules leads to the deterioration of both the zinc metal anode and cathode. In this study, a lean-water electrolyte was developed by replacing 90% of the water sheath with 1,3-propanediol (PDO) molecules. The results showed that this electrolyte effectively suppressed hydrogen evolution reaction and inhibited zinc dendrite growth, leading to high capacity and long lifespan in zinc-ion batteries.
Review
Chemistry, Multidisciplinary
Lu Li, Gao Chen, Zongping Shao, Haitao Huang
Summary: Water electrolysis powered by renewable energy has the potential to produce green hydrogen energy, which is crucial in building a near-zero-emission society. Integrating seawater purification and electrolysis technology is a promising approach to improve hydrogen production efficiency, stability, energy consumption, and cost.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Review
Chemistry, Physical
Gao Chen, Chao Wei, Yanping Zhu, Haitao Huang
Summary: This review summarizes the role of chemical driving force in electrocatalytic water splitting and discusses its effects on surface reconstruction, reaction rate/mechanism, and interfacial redox reactions. Understanding the chemical driving force can aid in the design of advanced energy materials.
