Article
Engineering, Environmental
Sharmila Tharuman, R. Karthikeyani, Shen-Ming Chen, Vellaichamy Balakumar, Nandini Nataraj, V. Sasirekha
Summary: g-C3N5, a nitrogen-rich semi-conducting material, exhibits unique optical and electronic characteristics. Its tunable bandgap and ability to absorb visible light make it a promising photocatalyst in various fields. The charge separation ability of g-C3N5 enhances its performance as a composite material.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Zongle Ma, Liang Xu, Kejun Dong, Tong Chen, S. X. Xiong, Bojun Peng, Jian Zeng, Shuaihao Tang, Haotian Li, Xin Huang, Kai-Wu Luo, Ling-Ling Wang
Summary: This study discusses the photocatalytic properties of GaN/CNs heterojunctions using first-principles calculations, showing that the GaN/C2N heterojunction can effectively separate photogenerated electron and hole pairs. Adjusting the CBM position of the GaN/C2N heterojunction can enhance its hydrogen evolution capability, while GaN/g-C3N4 heterojunction is suitable for optoelectronic devices.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Gizem Yanalak, Begumhan Karapinar Koc, Seda Yilmaz, Muhammad Israr, Mustafa Ersoz, Onder Metin, Imren Hatay Patir
Summary: The study presents the fabrication of a ternary heterojunction photocatalyst composed of mesoporous graphitic carbon nitride, black phosphorus, and molybdenum disulfide. The addition of Ni and Co co-catalysts improved the photocatalytic activity. By optimizing the loading ratio of each component, the best combination of semiconductors was found to achieve the highest photocatalytic hydrogen evolution reaction (HER) activity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Gizem Yanalak, Seda Yilmaz, Zafer Eroglu, Emre Aslan, Onder Metin, Imren Hatay Patir
Summary: New photocatalysts consisting of 2D/2D heterojunction of graphitic carbon nitride (gCN) and molybdenum disulfide (MoS2) semiconductors doped with nickel (Ni) or cobalt (Co) were fabricated for the photocatalytic hydrogen evolution reaction (HER) under visible light illumination. The prepared gCN/MoS2-Ni and gCN/MoS2-Co photocatalysts exhibited enhanced HER activities and stabilities compared to pristine gCN and binary gCN/MoS2 heterojunctions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Yaru Shang, Chunliang Wang, Chunshuang Yan, Fengyang Jing, Morteza Roostaeinia, Yu Wang, Gang Chen, Chade Lv
Summary: The study focuses on the design of a multifunctional photocatalyst with strong redox performance, constructed by a S-scheme heterojunction between metal-free g-C3N4 and noble-metal-free W18O49. The designed photocatalyst exhibits outstanding sustainability with hydrogen production, degradation, and bactericidal properties. The integration of hollow g-C3N4 nanotubes and W18O49 nanowires enhances the light harvesting ability, and the S-scheme heterojunction promotes carrier separation and redox ability of the catalyst. This work provides a theoretical basis for improving photocatalytic performance and expanding the application field of photocatalysis.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Energy & Fuels
Jingkai Lin, Wenjie Tian, Huayang Zhang, Xiaoguang Duan, Hongqi Sun, Shaobin Wang
Summary: This review summarizes the latest advancements in GCN-based Z-scheme structure for photocatalytic CO2 reduction, including the structure engineering strategies for direct ZSS construction and various approaches for indirect ZSS configuration. Additionally, the current issues and perspectives of GCN-based ZSS for PCR are also presented and discussed.
Article
Chemistry, Physical
Merve Aksoy, Sibel Eken Korkut, Onder Metin
Summary: The enhancement of catalytic activity of Pt-based nanocatalysts in the hydrolysis of ammonia borane (AB) was achieved through in-situ synthesis of bimetallic AuPt alloy nanoparticles. The synergistic effects aroused in the AuPt alloy nanoparticles and heterojunctions formed between gCN and AuPt alloy nanoparticles contributed to the higher catalytic activity. The improved charge kinetics, higher light absorption, and effective electron transfer channels were found to be the key factors for the boosted catalytic activity.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Adnan Hussain, Chitsan Lin, Nicholas Kiprotich Cheruiyot, Wen-Yen Huang, Kuen-Song Lin, Abrar Hussain
Summary: This study developed and examined the application of bismuth sulfide doped on graphitic carbon nitride in the degradation of NO under solar irradiation. The doped photocatalyst achieved higher NO degradation compared to pure bismuth sulfide and graphitic carbon nitride. The primary species responsible for NO degradation were found to be the electrons. The photocatalyst also demonstrated good stability and degradation efficiency under repeated solar irradiation.
Article
Chemistry, Physical
Bolin Zhu, Xuefei Li, Jihui Lang, Yue Wang, Jinghai Yang
Summary: This study reports a metal-free photocatalyst with graphene oxide/graphite-phase carbon nitride hetero-junction on a carbon cloth substrate. The photocatalyst shows excellent degradation rate of Rhodamine B under visible light, and maintains high catalytic activity after multiple cycles.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Orhan Altan, Onder Metin
Summary: A novel Z-scheme heterojunction photocatalyst was designed and fabricated for efficient FA dehydrogenation, exhibiting significantly improved activity compared to other catalysts under the same conditions.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Krishnamoorthy Rajavel, Shuyi Shen, Tao Ke, Daohui Lin
Summary: The study established a highly reactive catalyst derived from Ti3C2Tx (MXene) for photocatalytic and bacteriostatic applications. The hybrid nanostructures demonstrated superior catalytic performance and antibacterial activity under light exposure, making them promising materials for such applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Multidisciplinary Sciences
Qing Hong, Hong Yang, Yanfeng Fang, Wang Li, Caixia Zhu, Zhuang Wang, Sicheng Liang, Xuwen Cao, Zhixin Zhou, Yanfei Shen, Songqin Liu, Yuanjian Zhang
Summary: This study reports an adaptable graphitic C6N6-based copper single-atom catalyst, capable of driving basic oxidation reactions of peroxidase substrates through a copper-oxo pathway and performing a second gain reaction triggered by light via a free hydroxyl radical pathway. The reactive oxygen-related intermediates of the same oxidation reaction enable consistent reaction conditions. The unique topological structure of CuSAC6N6 promotes intramolecular charge separation and migration, inhibiting negative interferences. The catalyst exhibits superior activity and gain compared to controls and is further applied to a glucose biosensor.
NATURE COMMUNICATIONS
(2023)
Article
Energy & Fuels
Junzhuo Li, Zhaohui Ruan, Lei Zhu, Yudong Li, Xianzhu Xu, Yulin Yang, Yuan Yuan, Kaifeng Lin
Summary: Heteroatoms doping and morphology design are effective ways to enhance the photocatalytic activity of graphitic carbon nitride (g-C3N4). A porous g-C3N4 sphere codoped with K and I showed significantly improved catalytic activity, with the synergistic effect of codoping and the porous structure enhancing light absorption and carrier separation capabilities during photocatalysis. Experimental results and optical simulations confirmed the benefits of the codoping of metal and nonmetal elements in enhancing photocatalytic performance.
Review
Materials Science, Multidisciplinary
Xinyue Kong, Xiangmei Liu, Yufeng Zheng, Paul K. Chu, Yu Zhang, Shuilin Wu
Summary: This review summarizes the basic characteristics, preparation methods, and photocatalytic antibacterial mechanism of metal-free polymeric two-dimensional nanomaterial graphitic carbon nitride (g-C3N4), emphasizing the importance of increasing light utilization, reducing recombination of electron-hole pairs, and maintaining biocompatibility and environmental friendliness. Furthermore, various modification strategies and examples of combining g-C3N4's photocatalytic antibacterial effect with other strategies to achieve synergistic effects are introduced.
MATERIALS SCIENCE & ENGINEERING R-REPORTS
(2021)
Review
Materials Science, Multidisciplinary
Ping Niu, Junjing Dai, Xiaojuan Zhi, Zhonghui Xia, Shulan Wang, Li Li
Summary: Graphitic carbon nitride (GCN) has shown great potential as a photocatalyst for overall water splitting, with breakthrough progress being made in this dynamic research field. Modulating the activity of GCN can lead to more efficient photocatalytic water splitting, offering new ideas and methods for the design of advanced photocatalysts in the future.
Article
Chemistry, Multidisciplinary
Jinjin Wang, Jinzhao Kang, Zhen-Yi Gu, Qinghua Liang, Xiangyuan Zhao, Xiaomei Wang, Ruisheng Guo, Hong Yu, Cheng-Feng Du, Xing-Long Wu
Summary: This study demonstrates a new strategy to prepare advanced cathode materials for superior SIBs by doping chlorine, which improves the redox behavior of the cathode, enhances Na+ diffusion rate, and reduces charge transfer resistance. The Cl-doped NVPO2-xClxF cathode exhibits high rate capacity and cycle stability, and shows outstanding rate property and cycling capability in full cell configuration.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Environmental
Luhan Wei, Jianmin Wang, Zhen Zhao, Xi Yang, Sichen Jiao, Feng Cao, Shuai Tang, Xuefeng Zhang, Gaowu Qin, Qinghua Liang, Song Li
Summary: Developing low-cost and efficient oxygen electrocatalysts is crucial for various energy conversion technologies. In this study, a novel strategy was developed to prepare highly active oxygen electrocatalysts for zinc-air batteries, showing impressive performance and providing a simple approach for high-performance metal-air batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Lianhai Zu, Xingyue Qian, Shenlong Zhao, Qinghua Liang, Yu Emily Chen, Min Liu, Bing-Jian Su, Kuang-Hsu Wu, Longbing Qu, Linlin Duan, Hualin Zhan, Jun-Ye Zhang, Can Li, Wei Li, Jenh Yih Juang, Junwu Zhu, Dan Li, Aibing Yu, Dongyuan Zhao
Summary: In this work, ultrathin Ir-IrOx/C nanosheets with ordered interlayer space were synthesized through a nanoconfined self-assembly strategy, exhibiting enhanced catalytic activity for acidic oxygen evolution reactions. The nanosheets showed one of the lowest overpotential during OER in an acid medium, benefiting from their mixed-valence states, rich electrophilic oxygen species, and favorable mesostructured architectures. This study opens a new avenue for designing high-performance 2D ordered mesoporous electrocatalysts for water oxidation and beyond through a nanoconfined self-assembly strategy.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Jianyu Chen, Sijia Li, Xin Qiao, Yizhou Wang, Linna Lei, Zhiyang Lyu, Jin Zhao, Yu Zhang, Ruiqing Liu, Qinghua Liang, Yanwen Ma
Summary: A bidirectional porous Cu current collector was developed in this study, showing stable Li plating and stripping behaviors for practical Li metal batteries. The current collector demonstrated high capacity, outstanding cycling performance, and elevated energy density, suggesting promising applications for future Li metal batteries.
Article
Chemistry, Physical
Daliang Han, Zhenxing Wang, Haotian Lu, Huan Li, Changjun Cui, Zhicheng Zhang, Rui Sun, Chuannan Geng, Qinghua Liang, Xiaoxia Guo, Yanbing Mo, Xing Zhi, Feiyu Kang, Zhe Weng, Quan-Hong Yang
Summary: By using a low-cost ammonium acetate (NH4OAc) additive, a self-regulated zinc/electrolyte interface is built to address the issues of rapid performance deterioration of zinc anodes. The additive induces a dynamic electrostatic shielding layer around the zinc protuberance, promoting uniform zinc deposition, and acts as an interfacial pH buffer to suppress side reactions and precipitation of insoluble by-products. These findings pave the way for practical zinc batteries.
ADVANCED ENERGY MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Wanming Teng, Junxiong Wu, Qinghua Liang, Jiaojiao Deng, Yu Xu, Qiong Liu, Biao Wang, Ting Ma, Ding Nan, Jun Liu, Baohua Li, Qingsong Weng, Xiaoliang Yu
Summary: This review summarizes the recent advancements in electrolytes for alkali metal batteries (lithium, sodium, and potassium batteries), with a special focus on the structure-composition-performance relationships of electrolytes. The review points out the unsuitability of conventional electrolytes for maintaining stability and discusses the role of concentrated and fluorinated electrolytes, as well as functional electrolyte additives, in enhancing the stability of lithium metal batteries. The electrolyte formulations for sodium and potassium metal batteries are also discussed. By highlighting the challenges and research needs in advanced electrolytes for alkali metal batteries, this review sheds light on the principles for the rational design of promising electrolytes and offers new inspirations for developing stable alkali metal batteries with high performance.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Zhiyuan Xiong, Yang Cao, Wen-Jie Jiang, Lianhai Zu, Qinghua Liang, Dan Li
Summary: This study investigates the impact of shear processing on the electrochemical performance of 2D nanomaterial-based electrodes. It is found that high shear rate during processing can induce ordered structures in the electrodes, leading to improved pseudocapacitive kinetics. These findings highlight the importance of electrode processing for large-scale manufacturing of 2D nanomaterials.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yang Cao, Zhiyuan Xiong, Qinghua Liang, Wen-Jie Jiang, Fang Xia, Xiaoyang Du, Lianhai Zu, Stephen Mudie, George V. Franks, Dan Li
Summary: Assembling two-dimensional (2D) nanomaterials into laminar membranes with a subnanometer (subnm) interlayer spacing provides a material platform for studying nanoconfinement effects and exploring technological applications related to the transport of electrons, ions, and molecules. This study reveals that dense reduced graphene oxide membranes exhibit a hybrid nanostructure of subnm channels and graphitized clusters, which can be engineered by controlling stacking kinetics and reduction temperature. The optimized nanotextures enable high-performance compact capacitive energy storage.
Article
Chemistry, Multidisciplinary
Diyan Liu, Zhiyuan Xiong, Peiyao Wang, Qinghua Liang, Haijin Zhu, Jefferson Zhe Liu, Maria Forsyth, Dan Li
Summary: This study investigates the relationship between ion concentration and pore size in multilayered graphene membranes (MGMs) using nuclear magnetic resonance and computational simulations. The results show that the concentration of chaotropic ions increases with decreasing nanoslit size, while the concentration of kosmotropic ions and other ions decreases or changes slightly. In addition, anions remain more concentrated than counter ions, leading to electroneutrality breakdown and unipolar anion packing in MGMs.
Article
Chemistry, Multidisciplinary
Hong Yu, Yan Gao, Hongbo Jing, Jinjin Wang, Qinghua Liang, Jinzhao Kang, Xiaomei Wang, Weihong Qi, Cheng-Feng Du
Summary: Na3V2(PO4)(2)O2F (NVPOF) is a promising cathode material for sodium-ion batteries due to its high specific capacity and working voltage. However, the challenge lies in improving the Na+ diffusivity. In this study, boron (B) was doped at the P-site to enhance the Na+ diffusion tunnels. The B-doped cathode showed significantly accelerated Na+ diffusivity, leading to high rate performance and long cycle stability. The assembled full cell also exhibited exceptional power/energy density and excellent capability to withstand long cycles.
Article
Chemistry, Physical
Hualin Zhan, Richard Sandberg, Fan Feng, Qinghua Liang, Ke Xie, Lianhai Zu, Dan Li, Jefferson Zhe Liu
Summary: Machine learning can be used to establish a physics-based nanocircuit model, allowing for the prediction and evaluation of electrical characteristics in nanoporous ionic systems. This approach provides insights into ion dynamics in nanoporous electrodes, such as nonideal cyclic voltammetry and dynamic, pore-size-dependent surface conductance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Feng Cao, Yuhan Sun, Xiaoyu Duan, Mengyang Li, Biao Chen, Yang Cao, Qinghua Liang, Amany M. El Nahrawy, Gaowu Qin
Summary: In this study, interfacial engineering of CuWO4/WO3 thin film was proposed to enhance the photoelectrochemical (PEC) performance for solar water splitting. The theoretical calculation revealed significantly accelerated charge separation in the CuWO4/WO3 heterojunction due to an in situ formed built-in electric field. An efficient ultrasonic spray pyrolysis technique was developed for the fabrication of heterostructural CuWO4/WO3 thin films on FTO glass substrates with tunable thickness and composition. The optimized CuWO4/WO3 film showed a high and stable photocurrent density of 0.66 mA cm(-2) (1.23 V vs. RHE) under AM 1.5 G illumination, which is approximately 15 times higher than that of pure CuWO4 thin films (0.042 mA cm(-2)). The enhanced light absorption and improved charge separation and transfer in the CuWO4/WO3 heterojunction contributed to the improved PEC performance of the CuWO4/WO3 film for solar water splitting.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Physical
Liang Hu, Jiaojiao Deng, Qinghua Liang, Junxiong Wu, Bingcheng Ge, Qiang Liu, Guohua Chen, Xiaoliang Yu
Summary: This review paper focuses on the recent advances in engineering current collectors for high-performance AMBs. It introduces the fundamentals of alkali metal deposition on current collectors and examines the development of advanced metal and carbon-based current collectors for enhancing the stability and cycle life of LMBs. It also analyzes the research progress in design of advanced current collectors for sodium/potassium metal batteries and discusses the major challenges and key perspectives for the future development of current collectors in AMBs.
Article
Chemistry, Physical
Hong Yu, Yan Gao, Jinjin Wang, Qinghua Liang, Jinzhao Kang, Xiaomei Wang, Cheng-Feng Du, Qingyu Yan
Summary: This study focuses on improving the Na+ ion diffusivity of the cathode material NVPOF by introducing K+ ions, which leads to enhanced rate capability and cycling stability in sodium-ion full cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Materials Science, Multidisciplinary
Junxiong Wu, Cong Lin, Qinghua Liang, Guodong Zhou, Jiapeng Liu, Gemeng Liang, Man Wang, Baohua Li, Liang Hu, Francesco Ciucci, Qiang Liu, Guohua Chen, Xiaoliang Yu
Summary: Researchers proposed a sodium-free-anode sodium metal battery (SFA-SMB) configuration to address the drawbacks of conventional SMBs. The use of sodiated Na3V2(PO4)3 as a cathode provided a stable and controllable sodium source, resulting in high energy density and long cycle life.
