Article
Chemistry, Physical
Huifang Kuang, Huangqing Zhang, Xiaohong Liu, Yudong Chen, Wengong Zhang, Hong Chen, Qidan Ling
Summary: To enhance the electrochemical performance of electrode materials for energy storage devices, a core-shell heterostructure graphene nanoscrolls composite was designed and synthesized. This composite provides more active sites for pseudocapacitive reactions, promotes the collection/transport of electrons and ions, and buffers the volume variation of active matters during cycling. The as-obtained electrode exhibits a high specific capacitance and a long cycle life.
Article
Materials Science, Multidisciplinary
Ling Yi, Hengchao Sun, Wen Yang, Weina Chen, Jian Luo, Jinyan Wang, Xing Kang, Detian Luo, Bing Ma, Yanjun Wang, Songyong Su, Zheng Wang
Summary: Graphene-MoS2 composites were synthesized as counter electrodes for dye-sensitized solar cells, replacing traditional expensive and unstable Pt film. The amount of graphene additive affects cell performance, with the porous structure benefiting electrical conductivity and catalysis. The maximum efficiency achieved was 6.3% under 100 mW cm(-2) illumination with Mo:C ratio of 1:1.
FRONTIERS IN MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Wei Jia, Lingren Zhou, Ming Jiang, Jiang Du, Mengying Zhang, Enlin Han, Hongqing Niu, Dezhen Wu
Summary: A rapid and efficient strategy using microwave-assisted imidization was introduced to prepare polyimide/graphene nanosheet (PI/GN) composite fibers, resulting in significantly improved mechanical properties and thermal stabilities. The addition of graphene nanosheets (GNs) as a microwave absorber promoted the imidization process, leading to enhanced tensile strength and modulus of the fibers.
Article
Multidisciplinary Sciences
Malgorzata Skorupska, Anna Ilnicka, Jerzy P. Lukaszewicz
Summary: This study presents a facile method of preparing nitrogen-doped graphene foam in a microwave reactor and investigates the influence of solvent type and microwave reactor holding time. The obtained N-doped graphene materials were characterized using various methods. The materials showed high activity towards ORR, with the tested non-Pt materials achieving a number of electrons reaching 3.46.
SCIENTIFIC REPORTS
(2021)
Review
Chemistry, Physical
Yuan Zhang, Ashleigh Kirs, Filip Ambroz, Chieh-Ting Lin, Abdulaziz S. R. Bati, Ivan P. Parkin, Joseph G. Shapter, Munkhbayar Batmunkh, Thomas J. Macdonald
Summary: Organic-inorganic hybrid perovskite solar cells have been widely studied for their high power conversion efficiency, simple fabrication, and low cost. However, their sensitivity to moisture and oxygen has led to challenges in constructing them in inert environments. Recent progress in fabricating efficient and stable PSCs in ambient conditions shows promise for successful commercialization.
Article
Materials Science, Ceramics
Ashutosh Dubey, Nidhi Bhavsar, Vivek Pachchigar, Mahesh Saini, Mukesh Ranjan, Charu Lata Dube
Summary: We have successfully synthesized multi-layer graphene oxide and graphene oxide based magnetic nanocomposite for efficient removal of toxic lead and cadmium ions from aqueous solution. The synthesized materials have shown good quality and large surface area, making them effective adsorbents.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Chenxu Miao, Xianzhi Yin, Genglei Xia, Kai Zhu, Ke Ye, Qian Wang, Jun Yan, Dianxue Cao, Guiling Wang
Summary: The study shows that CoSe2/RGO composites exhibit excellent specific capacitance and durability, with the best performance achieved at 35.2 wt% RGO content. The hybrid supercapacitor using solid-state materials broadens the voltage window and enhances energy density.
APPLIED SURFACE SCIENCE
(2021)
Article
Acoustics
Zengjie Wang, Hongpeng Zhou, Jilai Xue, Xuan Liu, Shizhe Liu, Xiang Li, Dingyong He
Summary: A persistent ultrasound-assisted hydrothermal method was used to prepare cobalt oxide incorporated nitrogen-doped graphene (Co3O4/N-GO) hybrids, which showed better catalytic activity in Al-air battery cathode materials. The ultrasonication promoted the growth of Co3O4 particles and increased the average working voltage, possibly due to the large number density of fine Co3O4 particles on dispersed GO sheets. The ultrasonic mechanism was discussed in detail.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Energy & Fuels
Rajesh Kumar, Sumanta Sahoo, Wai Kian Tan, Go Kawamura, Atsunori Matsuda, Kamal K. Kar
Summary: The hybrid material rGO@Co3O4/CoO synthesized by single-step microwave irradiation shows promising electrochemical performance and mesoporous structure, indicating its potential as electrode material for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Multidisciplinary
Chi-Lun Mai, Qin Zhou, Qiu Xiong, Ching-Chin Chen, Jianbin Xu, Zhuangzhuang Zhang, Hsuan-Wei Lee, Chen-Yu Yeh, Peng Gao
Summary: The results of the study demonstrate that D-pi-A type porphyrin derivatives are promising passivators for improving the cell performance of PSCs.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Environmental
Shitong Han, Wenyue Li, Hailing Xi, Rusheng Yuan, Jinlin Long, Chao Xu
Summary: A graphene-based nanofiltration membrane was successfully constructed using a plasma-assisted in-situ photocatalytic reduction method, showing effective separation ability for heavy metal ions and improved performance in treating toxic solutions like Cr(VI).
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Md Musfiqur Rahman, Islam Hafez, Mehdi Tajvidi, Aria Amirbahman
Summary: A novel microwave-assisted thawing process was developed to produce low-density CNF foams, which is more energy-efficient than traditional methods and allows for the incorporation of other nanomaterials.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Shuangqiang Shi, Sue Ren, Sijia Hao, Yubin Chen, Cheng Yang, Shenglong Dai
Summary: Graphene aerogels with three-dimensional network structure are successfully synthesized through a modified hydrothermal method using ethanol and water as the solvent. The volume ratio of ethanol-to-water is found to strongly influence the microstructure and electromagnetic absorption properties of the aerogels. The aerogel with the ethanol-to-water ratio of 1:1 exhibits the best electromagnetic absorption performance.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Li Zhang, Yangjun Luo, Heming Huang, Huijuan Zhang, Youyuan Wang, Yu Wang
Summary: In this study, ordered Ag@Pd core-shell structures were successfully supported on the Ti4O7 surface by ascorbic acid-assisted galvanic replacement (GR), leading to improved catalytic activity and stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Applied
Yangchun Liu, Lihui Xu, Hong Pan, Liming Wang, Yong Shen, Wei Xu
Summary: Graphene/silver/polydimethylsiloxane-coated cotton fabric with super-hydrophobic and conductive properties was successfully prepared, exhibiting outstanding performance such as a water contact angle of 157 degrees and a larger effective absorption bandwidth.
JOURNAL OF POROUS MATERIALS
(2022)
Article
Chemistry, Physical
Tahmineh Mahmoudi, Yousheng Wang, Yoon-Bong Hahn
Summary: This study proposes an innovative approach to enhance the stability and performance of perovskite solar cells by utilizing functional composites, achieving high power conversion efficiency, photocurrent density, and long-term stability.
Review
Chemistry, Physical
Yousheng Wang, Gowri Manohari Arumugam, Tahmineh Mahmoudi, Yaohua Mai, Yoon-Bong Hahn
Summary: Perovskite solar cells based on Omh perovskite composites and interface stabilization strategies show great potential for efficient and stable photovoltaic applications, but challenges in operational stability still need to be addressed.
Article
Chemistry, Physical
Yousheng Wang, Hui Ju, Tahmineh Mahmoudi, Chong Liu, Cuiling Zhang, Shaohang Wu, Yuzhao Yang, Zhen Wang, Jinlong Hu, Ye Cao, Fei Guo, Yoon-Bong Hahn, Yaohua Mai
Summary: The study focuses on the importance of stabilizing perovskite phases and interfaces in stacked perovskite photovoltaics for efficiency and stability. Special A-site cation combinations and interface treatment techniques were used to prepare hysteresis-free, high-efficiency solar cells based on NiOx.
Article
Chemistry, Multidisciplinary
Zhen Wang, Yuanlin Lu, Zhenhua Xu, Jinlong Hu, Yijun Chen, Cuiling Zhang, Yousheng Wang, Fei Guo, Yaohua Mai
Summary: A study on the fabrication of flexible FA-alloyed perovskite solar cells using solvent engineering and embedding 2D/3D perovskite heterostructures strategy has achieved high efficiency and improved mechanical robustness.
Article
Energy & Fuels
Hui Ju, Yajie Ma, Ye Cao, Zixuan Wang, Liming Liu, Meixiu Wan, Tahmineh Mahmoudi, Yoon-Bong Hahn, Yousheng Wang, Yaohua Mai
Summary: The passivation of perovskite bulk and heterointerface defects using alkylamine halides is effective in enhancing the efficiency and stability of perovskite solar cells. This study explores the role of long-chain alkylamine ligands in achieving efficient NiOx-based inverted perovskite solar cells. The ligands assist crystal growth and suppress defects, resulting in hysteresis-free and highly efficient inverted solar cells.
Article
Nanoscience & Nanotechnology
Shenghan Wu, Liming Liu, Bo Zhang, Yueyue Gao, Luwen Shang, Shenghua He, Shengjun Li, Putao Zhang, Shanshan Chen, Yousheng Wang
Summary: In this study, a two-dimensional polymer PBDFP-Bz was used to modify perovskite films, which resulted in improved film quality, reduced trap state density, enhanced moisture tolerance, and prevented lead ion leakage. The modified devices showed higher efficiency and better performance under continuous heating and light soaking compared to the control devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Tahmineh Mahmoudi, Mohammadhosein Kohan, Won-Yeop Rho, Yousheng Wang, Yeon Ho Im, Yoon-Bong Hahn
Summary: By incorporating nitrogen-doped graphene oxide (N(x)GO) in tin-based perovskite solar cells (PSCs), the stability and efficiency of the devices can be significantly improved. The inclusion of N(x)GO slows down the crystallization process and suppresses oxidation, resulting in high-quality films and enhanced device performance.
ADVANCED ENERGY MATERIALS
(2022)
Article
Engineering, Environmental
Zixuan Wang, Liming Liu, Yousheng Wang, Yajie Ma, Zigan Yang, Meixiu Wan, Hongbin Zhu, Tahmineh Mahmoudi, Yoon-Bong Hahn, Yaohua Mai
Summary: A green and simple antisolvent-mediator is developed to stabilize the perovskite active layer, facilitate crystal growth, and passivate defects. The resulting perovskite solar cells show high power conversion efficiency and open-circuit voltage, as well as long-term stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Jiang-Yang Shao, Dongmei Li, Jiangjian Shi, Chuang Ma, Yousheng Wang, Xiaomin Liu, Xianyuan Jiang, Mengmeng Hao, Luozheng Zhang, Chang Liu, Yiting Jiang, Zhenhan Wang, Yu-Wu Zhong, Shengzhong Frank Liu, Yaohua Mai, Yongsheng Liu, Yixin Zhao, Zhijun Ning, Lianzhou Wang, Baomin Xu, Lei Meng, Zuqiang Bian, Ziyi Ge, Xiaowei Zhan, Jingbi You, Yongfang Li, Qingbo Meng
Summary: This review provides a summary of the recent major advances in the research of perovskite solar cells from a material science perspective. It covers topics such as different types of perovskite materials, defects, charge transport materials, counter electrodes, and interfacial materials. It also discusses the limitations and future prospects for the development of perovskite solar cells.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Physical
Mohammadhosein Kohan, Tahmineh Mahmoudi, Yousheng Wang, Yeon Ho Im, Yoon-Bong Hahn
Summary: In this study, SnO2/BaSnO3 was explored as an electron transport layer for stable and efficient n-i-p perovskite solar cells. The devices with c-SnO2/mp-BSO ETL showed better performance and thermal-photo stability compared to TiO2-based ones.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Liming Liu, Yajie Ma, Yousheng Wang, Qiaoyan Ma, Zixuan Wang, Zigan Yang, Meixiu Wan, Tahmineh Mahmoudi, Yoon-Bong Hahn, Yaohua Mai
Summary: NiOx-based inverted perovskite solar cells show great potential for low-cost, efficient, and stable next-generation photovoltaics. A graded configuration with interface-cascaded structures and p-type molecule-doped composites is proposed to improve device efficiency. The results demonstrate suppressed non-radiative recombination and enhanced stability, with a power conversion efficiency over 23% and high operational stability over 1,200 hours.
NANO-MICRO LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Shenghan Wu, Liming Liu, Bo Zhang, Yueyue Gao, Luwen Shang, Shenghua He, Shengjun Li, Putao Zhang, Shanshan Chen, Yousheng Wang
Summary: This study demonstrates the potential of using PBDFP-Bz to modify perovskite films in order to improve the efficiency, stability, and security of perovskite solar cells. The modified devices showed higher efficiency, enhanced moisture tolerance, and reduced lead ion leakage compared to the control devices. These findings are significant for the sustainable development of perovskite solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Chaoran Chen, Jinlong Hu, Zhenhua Xu, Zhen Wang, Yousheng Wang, Lingxiang Zeng, Xianhu Liu, Yang Li, Yaohua Mai, Fei Guo
Summary: Using methionine as a passivation agent can significantly reduce trap-state density in perovskite films, improving carrier lifetime and enhancing the optoelectronic properties of solar cells. Solar cells made of methionine-mediated perovskite films exhibit higher photovoltage and improved stability compared to control devices.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Chemistry, Physical
Sirinya Ukasi, Paritta Jutapukti, Chiranicha Ninthub, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Satana Pongampai, Naratip Vittayakorn, Thitirat Charoonsuk
Summary: This study explores the enhancement of electrical output of flexible hybrid piezoelectric-triboelectric nanogenerators by incorporating gamma-glycine into fully organic composites. The research demonstrates the importance of optimized concentrations of gamma-glycine and chitosan in achieving superior performance. The study identifies the critical content of gamma-glycine that leads to the highest output signal, and provides theoretical explanations for this observation.
Article
Chemistry, Physical
Yoonsang Ra, Yu-seop Kim, Seonmo Yang, Namgyu Kang, Gyuwon Oh, Chungyeon Cho, Sangmin Lee, Dongwhi Choi
Summary: In this study, a portable energy harvester (STEP) was proposed to drive various functional LEDs using biomechanical energy. The roles and functionalities of a triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) in the hybrid energy harvester were experimentally demonstrated, and the necessity of hybridization for LED-involved devices was described. The STEP showed promising potential as an effective energy supply strategy for various functional LEDs in related industries.
Article
Chemistry, Physical
Dae Sol Kong, Kyung Hoon Kim, Ying Chieh Hu, Jong Hun Kim, Inseo Kim, Jeongwan Lee, Joonhyuk Lee, Won Hyuk Shon, Hanjin Yoo, Chul-Un Ro, Seungsu Lee, Hyoungjeen Jeen, Minbaek Lee, Minseok Choi, Jong Hoon Jung
Summary: With the rapid development of the Internet of Things and artificial intelligence, smart home has emerged to fulfill the security, convenience, and energy-saving issues of modern life. A flexoelectric mica crystal is used to augment the finger touch-driven triboelectric output for operating a wireless and multichannel smart home controller. This work provides important ingredients for enhancing triboelectric output and realizing a convenient, multifunctional, cost-effective, and adaptable smart home control system without batteries.
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Chemistry, Physical
Wen Zhang, Fangyuan Cheng, Miao Chang, Yue Xu, Yuyu Li, Shixiong Sun, Liang Wang, Leimin Xu, Qing Li, Chun Fang, Meng Wang, Yuhao Lu, Jiantao Han, Yunhui Huang
Summary: This study successfully induced the formation of a uniform and robust CEI by constructing ZrO2 nano-rivets on the surface of LCO, stabilizing the surface of high-voltage LCO and facilitating lithium-ion diffusion.
Article
Chemistry, Physical
Karl P. Olson, Laurence D. Marks
Summary: This paper investigates the role of contacting shapes in triboelectricity and provides scaling rules for designing energy harvesting devices.
Article
Chemistry, Physical
Jong-An Choi, Jingu Jeong, Mingyu Kang, Hee-Jin Ko, Taehoon Kim, Keun Park, Jongbaeg Kim, Soonjae Pyo
Summary: Wind-driven triboelectric nanogenerators (WTENGs) are a promising emerging technology for sustainable wind energy harvesting, offering high output performance, lightweight design, and compact dimensions. This study introduces an innovative WTENG design that leverages a rolling-based mechanism to achieve efficient omnidirectional wind energy harvesting.
Article
Chemistry, Physical
Liwei Dong, Qian Tang, Chaoyang Zhao, Guobiao Hu, Shuai Qu, Zicheng Liu, Yaowen Yang
Summary: This paper proposes a novel hybrid scheme for flag-type nanogenerators (FNGs) that enhances their performance and broadens their operational wind speed ranges by harnessing the synergistic potential of two aerodynamic behaviors. The proposed flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) integrates flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). The FTPNG achieves significant power generation and a broad wind speed range, surpassing other FNGs, making it suitable for various self-powered systems and Internet of Things applications.
Review
Chemistry, Physical
Yunmeng Li, Xin Liu, Zewei Ren, Jianjun Luo, Chi Zhang, Changyong (Chase) Cao, Hua Yuan, Yaokun Pang
Summary: The demand for green and eco-friendly materials is growing due to increasing environmental concerns related to traditional petroleum-based products. Marine biomaterials have emerged as a promising alternative, thanks to their abundant availability, biocompatibility, biodegradability, and low toxicity. In this review, we discuss the development and applications of triboelectric nanogenerators (TENGs) based on marine biomaterials. The operational modes, foundational principles, intrinsic qualities, and advantages of marine biomaterials commonly used in TENG designs are highlighted. Approaches to enhance the efficacy of TENGs derived from marine biomaterials are also discussed, along with documented applications from existing literature. Furthermore, the existing challenges and future directions in marine biomaterial-inspired TENGs are explored.
Article
Chemistry, Physical
Matthew P. Wells, Adam J. Lovett, Yizhi Zhang, Zhongxia Shang, Kosova Kreka, Babak Bakhit, Haiyan Wang, Albert Tarancon, Judith L. MacManus-Driscoll
Summary: Reversible solid oxide cells (rSOCs) offer a promising solution to efficient energy conversion, but have been limited in portable power and electrolysis applications due to excessive polarisation resistance of the oxygen electrode at low temperatures. This study demonstrates the growth of symmetric and complete rSOC structures with reduced polarisation resistance by tuning oxygen vacancy through annealing, providing a promising route towards high-performance rSOC devices for portable power applications.
Article
Chemistry, Physical
Kangkang Bao, Minghui Wang, Yue Zheng, Panpan Wang, Liwen Yang, Yang Jin, Hui Wu, Bin Sun
Summary: This study utilizes ethanol as an electrolyte additive to modulate the migration of zinc ions and the surface structure of zinc anodes, resulting in improved capacity retention and cycle life of zinc-based aqueous batteries.
Article
Chemistry, Physical
Haichao Yang, Wensi Cai, Ming Wang, Saif M. H. Qaid, Zhiyuan Xu, Huaxin Wang
Summary: The introduction of sodium alginate (SA) into perovskite solar cells improves the carrier dynamics, stability, and performance by inhibiting nonradiative recombination and retarded charge dynamics.
Article
Chemistry, Physical
Cuirong Zhang, Mingyuan Wei, Zihan Chen, Wansheng Lin, Shifan Yu, Yijing Xu, Chao Wei, Jinwei Zhang, Ziquan Guo, Yuanjin Zheng, Qingliang Liao, Xinqin Liao, Zhong Chen
Summary: Artificial Intelligence of Things (AIoT) aims to establish smart and informative interactions between humans and devices. However, common pixelated sensing arrays in AIoT applications present problems such as hard and brittle devices, complex structures, and low precision. This article introduces an innovative solution called the all-in-one intelligent semitransparent interactive nerve patch (AISI nerve patch), which integrates sensing, recognition, and transmission functionalities into a thin and flexible patch. The AISI nerve patch is semitransparent, allowing for accurate identification without affecting aesthetics, and it can be attached to any curved surface for intelligent and interactive applications. With rapid response time and high precision recognition, it enables the integration of artificial intelligence and achieves high recognition accuracy for further development of AIoT.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
Article
Chemistry, Physical
Yao Xiao, Puxian Xiong, Yakun Le, Zhenjie Lun, Kang Chen, Zhiduo Wang, Peishan Shao, Zhicong Chen, Dongdan Chen, Zhongmin Yang
Summary: This study successfully synthesized a material with multi-stimulus-responsive luminescence and confirmed the internal relationship between luminescence and defects by regulating the distribution and depth of defects. The dynamic process of multi-stimulus-responsive luminescence was validated by experimental and calculation results.
