Article
Energy & Fuels
Zhiguo Nie, Ye Wang, Xinyi Li, Rui Wang, Yang Zhao, Hua Song, Huan Wang
Summary: A series of nitrogen-doped hierarchical porous carbon materials were prepared by hydrothermal pretreatment and carbonization with ZnCl2 as the activator. The N2PC5 electrode showed optimal supercapacitor performance, with a specific capacitance of 321.5 F g(-1) at 0.5 A g(-1) and a capacitance retention ratio of 93% after 10,000 charge-discharge cycles, indicating the significance of developing low-cost, high-performance supercapacitors through a simple and effective preparation route.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Biochemistry & Molecular Biology
Zhen Wang, Ming Gao, Jie Peng, Luwei Miao, Wenqing Chen, Tianqi Ao
Summary: This study developed a composite carbon aerogel loaded with ZIF-8 nanoparticles as a capacitive deionization material, which exhibited excellent conductivity and high specific surface area. The material showed a fast adsorption rate and could be used as an electrode material in practical CDI applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Chemical
Qilin Liu, Na Wang, Bo Xie, Dan Xiao
Summary: A promising dual-template strategy was reported to prepare heteroatom-doped carbon materials with hierarchical micro-/meso-/macroporous structure from low-cost biomass pre-cursors. The resulting materials exhibited advantages of three-dimensional interconnected hierarchical porous structure and heteroatom doping, leading to high electrosorption capacity and removal efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Applied
Bing Wang, Yonggang Li, Zhijie Gu, Handong Wang, Xiaofeng Liu, Suping Li, Xiuxiu Chen, Xiaohui Liang, Zhaoxia Jiang, Kenji Ogino, Hongyu Si
Summary: Porous carbon systems doped with heteroatoms have potential for high energy density and power density. However, there is a lack of understanding of the relationship between heteroatom types and electrochemical properties, resulting in trial-and-error approaches for supercapacitor development. In this study, we synthesized biomass-derived carbon systems doped with N, S, and O atoms, which exhibited large specific surface areas and hierarchical porous structures. Our analysis of experimental evidence and theoretical simulations established doping principles for predictive electrochemical performance. The doped materials had broad operating voltage range (up to 1.8 V) in aqueous electrolytes and improved capacitive ions adsorption. They also demonstrated high energy density (25.2 Wh kg-1 at 180 W kg-1) and excellent cycling performance (97.6% capacity retention after 20,000 cycles). This work provides insights for designing advanced heteroatom-doped carbon electrodes.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Jing Zhang, Yuping Xu, Maowen Lan, Xiaodong Wang, Ning Fu, Zhenglong Yang
Summary: This study reports a refined catalyst obtained from CTF@MOF-x, which exhibits high oxygen reduction reaction (ORR) activity and excellent durability, providing new opportunities for CTF-derived carbon-based electrocatalysts to achieve high ORR performance.
DALTON TRANSACTIONS
(2022)
Article
Electrochemistry
Mohammed Jalalah, Siddheswar Rudra, Belqasem Aljafari, Muhammad Irfan, Saleh S. Almasabi, Turki Alsuwian, Mohammed Iqbal Khazi, Arpan Kumar Nayak, Farid A. Harraz
Summary: In recent years, there has been increasing research interest in the applications of biomass-derived meso/microporous carbon materials for energy storage. These materials, synthesized from natural sources, offer higher capacitance, durability, and rate capability compared to artificial nanomaterials. The elemental composition and porous nature of the biological precursor play a crucial role in obtaining high-energy and power density carbon materials.
ELECTROCHIMICA ACTA
(2022)
Article
Electrochemistry
Pei Zhang, Jiahui Mu, Ziyu Guo, Shao Ing Wong, Jaka Sunarso, Yi Zhao, Wei Xing, Jin Zhou, Shuping Zhuo
Summary: This study systematically characterizes and demonstrates excellent supercapacitor performance of heteroatom-doped porous carbon materials synthesized via molten salt template route. The obtained material exhibits high specific surface area and specific capacitances, as well as ultrahigh initial capacitance retention after 10,000 cycles of charge/discharge, showing great potential as electrode materials in supercapacitors.
Review
Green & Sustainable Science & Technology
Seung Jun Lee, Jayaraman Theerthagiri, Palaniyandy Nithyadharseni, Prabhakarn Arunachalam, Dhandapani Balaji, Arumugam Madan Kumar, Jagannathan Madhavan, Vikas Mittal, Myong Yong Choi
Summary: Graphene is an excellent energy material with unique properties, but its application is limited due to zero band gap. Doping with heteroatoms can enhance the physicochemical properties of graphene, making it an ideal material for various fields. These improved materials have made significant progress in energy conversion and storage technologies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
Yang Li, Zhi Liu, Zhao Li, Qiu Wang
Summary: Constructing noble metal-doped g-C3N4/carbon composites is an effective approach to enhance the activity of CO2 photoreduction. This study introduces a novel Ag-doped gC(3)N(4)/biomass-derived carbon composite with unique features, such as highly dispersed Ag nanoparticles and a conductive quasi-spherical hollow structure of BN-C, which significantly improve the CO evolution rate without the need for sacrificial reagents or photosensitizers.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Review
Materials Science, Paper & Wood
Samir Kamel, Tawfik A. Khattab
Summary: Organic reactions typically involve catalysts and solvents that can be harmful to the environment, but recent advancements in science and technology have led to a shift towards eco-friendly and sustainable resources, with nanocatalysis emerging as a promising field. Metal nanoparticles supported by cellulose offer high reactivity and productivity, enabling green and sustainable chemical transformations. Control over the characteristics of metal nanoparticles, such as structural morphology and particle size, is crucial for optimizing their catalytic activity.
Article
Chemistry, Multidisciplinary
Jiajun Hu, Yong Peng, Josep Albero, Hermenegildo Garcia
Summary: The study shows that small mixed Zn-Co metal oxide nanoparticles grown on B-doped graphene exhibit excellent electrochemical performance, with outstanding specific capacitance and energy storage capacity compared to those supported on N- and O-doped graphenes.
Article
Multidisciplinary Sciences
Jieting Ding, Hao-Fan Wang, Xianfeng Yang, Wenbo Ju, Kui Shen, Liyu Chen, Yingwei Li
Summary: We report a Janus-type carbon material combining electrically conductive nitrogen-doped carbon (NC) and catalytically active boron, nitrogen co-doped carbon (BNC), which can resolve the trade-off between intrinsic activity and electronic conductivity. The Janus carbon electrocatalyst exhibits superior activity in the electrocatalytic hydrazine oxidation reaction (HzOR) compared to single counterparts and physical mixtures. The NC/BNC interfaces promote efficient electron transport and decrease the free energy of the rate-determining step in the HzOR process.
NATIONAL SCIENCE REVIEW
(2023)
Article
Chemistry, Multidisciplinary
Jiakun Zhang, Bolan Cui, Shang Jiang, Haitao Liu, Meiling Dou
Summary: Exploring cost-effective non-precious metal electrocatalysts is vital for large-scale clean energy conversion devices. In this study, a three-dimensional cobalt sulfide/multi-heteroatom co-doped carbon composite was synthesized and exhibited outstanding electrocatalytic performance for the oxygen reduction, oxygen evolution, and hydrogen evolution reactions. The optimized material showed comparable or even superior performance to commercial counterparts and also demonstrated excellent anti-poisoning capability. The results provide an effective strategy for the design and synthesis of efficient and durable cobalt chalcogenide-based electrocatalysts.
Article
Chemistry, Multidisciplinary
Wen Guan, Yunlei Zhang, Changhao Yan, Yao Chen, Yanan Wei, Yu Cao, Fang Wang, Pengwei Huo
Summary: Developing efficient catalysts for the oxidation of furfuralcohols and furfurals to furancarboxylic acids is of great importance for the synthesis of high value-added downstream chemicals and biomass conversion. In this study, nitrogen-doped carbon-supported bimetallic AuPd bowl-like catalysts were successfully synthesized, and the surface wettability of nitrogen-doped carbon was adjusted to achieve highly selective oxidation of 5-hydroxymethylfurfural (HMF) in a base-free system, leading to the highest yield of 2,5-furandicarboxylic acid (FDCA).
Article
Chemistry, Physical
Haixiang Han, Shantanu Kallakuri, Yuan Yao, Curtis B. Williamson, Douglas R. Nevers, Benjamin H. Savitzky, Rachael S. Skye, Mengyu Xu, Oleksandr Voznyy, Julia Dshemuchadse, Lena F. Kourkoutis, Steven J. Weinstein, Tobias Hanrath, Richard D. Robinson
Summary: This study demonstrates the spontaneous hierarchical self-organization of nanometre-scale subunits to form higher-level complex structures. By using monodisperse Cd37S18 magic-size cluster building blocks, highly aligned structures are obtained, which mimic the complex constructions seen in nature. This research provides a platform for the design of synthetically directed advanced materials with sophisticated functions.