Article
Energy & Fuels
Haiyang Jia, Chen Zhu, Jiawei Sun, Wanying Liu, Jian Shao, Xiaosong Liu, Lingchang Wang
Summary: Hydroxyl-rich porous carbons were synthesized using sucrose as a precursor through concentrated sulfuric acid pre-carbonization and thermochemical activation. KOH was found to be the most effective activating agent, resulting in carbon materials with high specific surface area and pore volume. The resulting carbon materials demonstrated promising electrochemical properties in basic aqueous electrolyte.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Hongwei Liu, Yongzhen Wang, Liang Lv, Xiao Liu, Ziqi Wang, Jun Liu
Summary: Functional coal-based carbon materials with suitable pore structure and surface properties were prepared from lignite through a ball milling-assisted bimetallic salt catalytic pyrolysis strategy. The optimized carbon material, OHPC-1, exhibited a large specific surface area, rational pore structure distribution, and suitable oxygen doping, leading to excellent charge storage and fast electrolyte ions diffusion. The assembled OHPC-1//OHPC-1 symmetrical capacitor showed high energy density and cycling stability at different power densities, demonstrating the promising application of lignite in the preparation of cost-effective porous carbons for high-performance supercapacitors.
Article
Agricultural Engineering
Ziqiang Zhang, Shun Lu, Yudong Li, Jinshang Song, Enshan Han, Huawei Wang, Yanzhen He
Summary: In this study, a Cu doped bamboo/polypyrrole (PPy) based derived porous carbon material was prepared by polymerization of one-dimensional linear polypyrrole in bamboo residual cell walls and synergistic catalysis of citric acid (CA) and copper sulfate (CuSO4) during hydrothermal carbonization. The introduction of PPy and the synergistic catalytic effect of CA and CuSO4 improved the pore structure, heteroatom doping degree, and photo energy groups of the carbon materials, leading to enhanced electrochemical performance.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Physical
Liu Wan, Jinmei Hu, Jiaxing Liu, Mingjiang Xie, Yan Zhang, Jian Chen, Cheng Du, Zhengfang Tian
Summary: The facile synthesis of hierarchically porous carbon materials with high specific surface area and controllable pore structure through CuCl2 activation leads to superior electrochemical performance in aqueous electrolyte, including large specific capacitance, excellent rate capability, and good cycling stability. The carbon-based symmetric supercapacitor with CuCl2-activated carbon electrode shows significantly increased energy density at high power density compared to ZnCl2 or FeCl3-activated carbon electrodes, demonstrating CuCl2 activation as an effective chemical activation agent for biomass-derived carbon materials in high-performance supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Hao Chen, Yu Zheng, Xinqiang Zhu, Wenliang Hong, Yifei Tong, Yingzhuo Lu, Gu Pei, Yajun Pang, Zhehong Shen, Cao Guan
Summary: The one-step combustion reaction between 2-methylimidazole and sodium nitrate can efficiently convert bamboo powder into N, O co-doped porous carbon for use as a cathode material in zincion hybrid supercapacitors. The resulting BC-CNa exhibits high specific capacities, energy densities, and superb cycle stability, outperforming other carbon materials derived from bamboo.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Engineering, Environmental
Pingxian Feng, Huan Wang, Peipei Huang, Lijie Zhong, Shiyu Gan, Wei Wang, Li Niu
Summary: Lignin-derived carbon electrode materials with a high carbon content and a rich benzene ring structure were studied for supercapacitors, and it was found that the nanoporous structure significantly affects the capacitive performance. Three nitrogen-doped nanoporous carbons were prepared using alkali lignin as a carbon source, and the effect of different nanopore distributions on the electrochemical performance was examined. The carbon activated by ZnC2O4 showed a hierarchical porous structure composed of nanosheets, enabling it to store charge and transfer ions simultaneously. It achieved a maximum specific capacitance of 254F/g at 0.5 A/g, surpassing the microporous-dominated carbon activated by K2CO3 and mesoporous-dominated carbon obtained by the SiO2 template method. This study provides theoretical guidance for the preparation of excellent lignin-derived carbon electrode materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Hyun-Chul Kim, Jongho Yoon, Sukbin Yoon, Youngmee Kim, Suk Joong Lee, Seong Huh
Summary: N-doped porous metal-organic framework derived carbons were synthesized and activated with KOH, resulting in improved gas sorption and electrochemical capacitive properties. The N-doped MDC-700-2KOH showed high specific capacitance and specific energy, as well as excellent cycling performance.
Article
Energy & Fuels
Emre Gur, Tugce Gunay Semerci, Fatih Semerci
Summary: This study employed sugar beet pulp (SBP) as a low-cost biomass to prepare new activated porous carbons. The porous carbons exhibited high specific surface area and oxygen content, leading to excellent methylene blue adsorption capacity and specific capacitance performance. Experimental results in different electrolytes demonstrated that the SBP-derived porous carbons have high energy density and capacitance retention, making them highly promising for supercapacitor applications.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Yun Gao, Panpan Cui, Jie Liu, Weiwei Sun, Shuangqiang Chen, Shulei Chou, Li-Ping Lv, Yong Wang
Summary: A series of structure-controlled F/N co-doped porous carbons with large specific surface area were prepared via an in situ doping process, showing excellent electrochemical performance. These materials exhibited high specific capacitance and outstanding cyclability in supercapacitors, indicating potential for practical applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
L. Chen, L. Y. Xiang, B. Hu, H. Q. Zhang, G. J. He, X. C. Yin, X. W. Cao
Summary: This study investigates the potential of rice grain as a biomass precursor for electrochemical energy storage systems. The steaming process resulted in a fluffy material with a honeycomb-like structure, which improved the infiltration of the activator and prevented cross-linking between nanosheets. The activated carbon material obtained exhibited a high specific surface area and excellent performance in terms of capacitance, cycling stability, and energy density.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Analytical
Song Lv, Liya Ma, Xinyu Shen, Hua Tong
Summary: In order to achieve high-performance supercapacitors, nitrogen and sulfur co-doped porous chitosan hydrogel-derived carbons are prepared through one-step carbonization. The incorporation of potassium citrate as a pore-former and thiourea as binary doping of nitrogen and sulfur effectively enhances the capacitance of the carbon materials.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Andrzej S. Swinarew, Tomasz Flak, Agnieszka Jarosinska, Zaneta Garczyk, Jadwiga Gabor, Szymon Skoczynski, Grzegorz Brozek, Jaroslaw Paluch, Magdalena Popczyk, Arkadiusz Stanula, Sebastian Stach
Summary: The aim of this study was to synthesize and analyze spectral data to determine the structure and stereometry of a carbon-based porous material. Various techniques were used to investigate the samples and reveal their chemical and stereological structure. The developed material can be used to collect and analyze breathing phase samples for the determination of exhaled air composition.
Review
Engineering, Environmental
Nazmul Abedin Khan, Mahmud Hassan, Hye Jin Lee, Sung Hwa Jhung
Summary: This report reviewed the recent advances in preparation and characterization of pADC and pPDC materials, and discussed their applications in adsorptive removal/separation of various chemicals from water, liquid fuel, and air. The adsorption results were explained in terms of maximum adsorption capacities, adsorbate-adsorbent interactions, and regeneration of pADC or pPDC adsorbents for recyclability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Chuan Yuan, Mao Chen, Kai Zhu, Jun Ni, Shuang Wang, Bin Cao, Shan Zhong, Jingsong Zhou, Shurong Wang
Summary: Three-dimensionally nitrogen-doped interconnected porous carbons were prepared from cost-effective biomasses and utilized as EDLC electrodes, showing excellent capacitive behaviors and cycling stability.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Chongjun Zhao, Yiwen Ding, Yaoxuan Huang, Nan Li, Yaqi Hu, Chunhua Zhao
Summary: The study developed a 3D hierarchical porous carbon derived from natural soybean roots, which exhibited abundant hierarchical pores, large specific surface area, and high specific capacitance. The carbon material showed potential for application as high-performance electrode materials.
APPLIED SURFACE SCIENCE
(2021)
Review
Materials Science, Multidisciplinary
Wenjia Qu, Jingyi Xia, Chong Luo, Chen Zhang, Renjie Chen, Wei Lv, Quanhong Yang
Summary: High-energy-density batteries that can operate at a wide temperature range are in high demand for performance-critical applications. Lithium-sulfur batteries show promise as high-energy-density batteries capable of maintaining performance in extreme temperatures. However, issues such as shuttle effect, safety concerns, sluggish reaction kinetics, and charge-transfer process hinder their practical use in extreme temperature conditions. This paper comprehensively discusses the challenges faced by high and low-temperature lithium-sulfur batteries and proposes solutions that focus on electrolyte and electrode materials to overcome these challenges and extend the operating temperature range of these batteries.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Tian Gu, Likun Chen, Yanfei Huang, Jiabin Ma, Peiran Shi, Jie Biao, Ming Liu, Wei Lv, Yanbing He
Summary: In this work, a multifunctional ferroelectric BaTiO3 (BTO)/poly(vinylidene fluoride-co-trifluoroethylene-co-chlorotrifluoroethylene) (P[VDF-TrFE-CTFE]) composite interlayer (B-TERB) is constructed between LATP and Li metal anode to improve the interface stability and decrease the interfacial resistance. The B-TERB interlayer enables uniform Li deposition and suppresses Li dendrite growth, achieving excellent interface stability and stable cycling performance.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jie Biao, Bing Han, Yidan Cao, Qidong Li, Guiming Zhong, Jiabin Ma, Likun Chen, Ke Yang, Jinshuo Mi, Yonghong Deng, Ming Liu, Wei Lv, Feiyu Kang, Yan-Bing He
Summary: Poor ion and high electron transport at grain boundaries (GBs) of ceramic electrolytes cause lithium filament infiltration and short-circuiting in all-solid-state lithium metal batteries (ASLMBs). By reducing Li2CO3 to highly electron-conductive LiCx, lithium penetration of Li7La3Zr2O12 (LLZO) is observed. The ion and electron conductivity of LLZO GBs are simultaneously regulated using sintered Li3AlF6. LiAlO2 (LAO) infusion and F-doping at LLZO GBs significantly reduce Li2CO3 content, improve total ionic conductivity, and suppress lithium penetration. This work reveals the chemistry of Li2CO3 at LLZO GBs, presents a novel lithium penetration mechanism, and offers an innovative method for regulating ion and electron transport in garnet electrodes for advanced ASLMBs.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Bing Sun, Qin Zhang, Wenli Xu, Rong Zhao, Chengzhi Zhang, Jianguang Guo, Hui Zhu, Guanming Yuan, Wei Lv, Xuanke Li, Nianjun Yang
Summary: In this study, edge-enriched and S-doped carbon nanorods (SCNs) with controllable diameter and highly-oriented carbon layer arrangement were fabricated. The abundant edges and enlarged layer spacing contribute to the rapid kinetics of ionic insertion/desertion. The SCNs anodes with highly-oriented structure deliver excellent rate capacities and long-lasting cycling life for sodium and potassium ion storage. Density functional theory (DFT) results demonstrate the enhanced adsorption and reduced ions diffusion energy barrier of Na+ ions near the S-doped active sites, substantiating the promoted electrochemical kinetics of SCNs electrodes.
Article
Chemistry, Physical
Wuxing Hua, Tongxin Shang, Huan Li, Yafei Sun, Yong Guo, Jingyi Xia, Chuannan Geng, Zhonghao Hu, Linkai Peng, Zhiyuan Han, Chen Zhang, Wei Lv, Ying Wan
Summary: Understanding sulfur conversion chemistry is crucial for the development of sulfur-based high-energy-density batteries. The relationship between the electronic structure of the catalyst and its activity remains unclear. In this study, we establish a direct correlation between the p electron gain of S in p-block metal sulfides and the apparent activation energies (E-a) for the SRR, specifically the Li2Sn to Li2S conversion. The highest p charge is observed in bismuth sulfide, resulting in the lowest E-a and a high SRR rate.
Article
Nanoscience & Nanotechnology
Xinming Zhang, Zichen Liu, Wen Liu, Junwei Han, Wei Lv
Summary: Researchers have developed metal-based catalysts with ultrathin carbon shells on cobalt nanoparticles, which can effectively prevent the passivation of the catalysts by lithium polysulfides and promote the electron transfer. This design improves the reaction kinetics and stability of lithium-sulfur batteries, leading to enhanced cycling stability and sulfur utilization.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Zhiyuan Han, Hong-Rui Ren, Zhijia Huang, Yunbo Zhang, Sichen Gu, Chen Zhang, Wenhua Liu, Jinlong Yang, Guangmin Zhou, Quan-Hong Yang, Wei Lv
Summary: Researchers have developed a protective layer similar to the ion-permselective cell membrane for lithium-sulfur batteries, which prevents corrosion and dendrite growth on the lithium metal anode. This layer, formed by the self-assembly of octadecylamine and Al3+ ions, contains a ionic conductive Al-Li alloy embedded in it, allowing for uniform lithium deposition and preventing polysulfide penetration. As a result, the batteries assembled with this protective layer exhibit excellent cycling stability, even with a high sulfur loaded cathode, offering a straightforward and promising strategy for stabilizing highly active anodes in practical applications.
Article
Chemistry, Multidisciplinary
Xuerui Yi, Yong Guo, Sijia Chi, Siyuan Pan, Chuannan Geng, Mengyao Li, Zhenshen Li, Wei Lv, Shichao Wu, Quan-Hong Yang
Summary: This study addresses the challenge of interface incompatibilities in composite polymer electrolytes (CPEs) by phosphatizing the LLZO surfaces, which ensures high air stability and suppresses PVDF-HFP dehydrofluorination. This improves the uniform distribution of ceramic and polymer phases, enhances ionic conductivity and transference number, and provides exceptional cycling performance for Li/CPE and cathode/CPE interfaces. This study highlights the importance of achieving electro-chemo-mechanical compatibilities for CPEs and offers a new waste to wealth route.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hongyu Liu, Zheng-Ze Pan, Alex Aziz, Rui Tang, Wei Lv, Hirotomo Nishihara
Summary: This study proposes a novel electrode for electrochemical research of amorphous-based porous carbon materials. This electrode is fabricated by coating anodic aluminum oxide formed on an Al substrate with uniform carbon. The conformally carbon-coated layer consists of vertically aligned giant carbon nanotubes with low-crystalline stacked graphene sheets. The model electrode provides representative nanopores of low-crystalline carbon materials and can help clarify complex electrochemical processes in porous carbon electrodes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhitan Wu, Yaqian Deng, Jinyang Yu, Junwei Han, Tongxin Shang, Derong Chen, Ning Wang, Sichen Gu, Wei Lv, Feiyu Kang, Ying Tao, Quan-Hong Yang
Summary: The assembly of 3D structured materials from 2D units allows for the construction of thick and dense electrodes, which are highly desirable for practical energy-storage devices. The use of MXene, a 2D transitional metal carbide, shows promise in this field due to its solution-based assembly capabilities and high density. However, the lack of porous ion-transport paths poses a significant challenge in achieving high areal capacitance electrodes. In this study, a gelation-densification process initiated by hydroiodide acids (HI) is proposed, where the protons break the electrostatic balance of MXene nanosheets to trigger gelation, while HI serves as a spacer to prevent restacking of nanosheets during capillary shrinkage. The controlled evaporation of reductive HI results in a shrinking yet porous network for ion transport, leading to monoliths with a high density of 2.74 g cm(-3) and an unprecedented areal capacitance of 18.6 F cm(-2).
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Peiran Shi, Jiabin Ma, Ming Liu, Shaoke Guo, Yanfei Huang, Shuwei Wang, Lihan Zhang, Likun Chen, Ke Yang, Xiaotong Liu, Yuhang Li, Xufei An, Danfeng Zhang, Xing Cheng, Qidong Li, Wei Lv, Guiming Zhong, Yan-Bing He, Feiyu Kang
Summary: The authors developed a highly conductive and dielectric composite solid-state electrolyte by coupling BaTiO3 and Li0.33La0.56TiO3-x nanowires. This electrolyte promotes the dissociation of lithium salts and efficiently transports the generated movable lithium ions. A robust strategy for creating high-throughput lithium ion transport pathways is proposed by coupling the ceramic dielectric and electrolyte. The resulting highly conductive and dielectric composite solid-state electrolyte exhibits excellent ionic conductivity and lithium transference number, allowing for stable cycling and excellent electrochemical performance of solid-state batteries.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Chuannan Geng, Wenjia Qu, Zhiyuan Han, Li Wang, Wei Lv, Quan-Hong Yang
Summary: The poor reversibility of high-energy-density Li-S batteries is mainly caused by the polysulfide shuttling and electrode structure destruction. This study highlights the significance of Coulombic efficiency (CE) in evaluating Li-S batteries and proposes a remedy for low efficiencies by in situ coating Li2S cathode with polymerizable electrolyte additives. The coating catalytically decreases the initial overpotential of Li2S and inhibits the shuttling of lithium polysulfides, leading to improved CE and reduced sulfur loss during cycling.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Liang Zhao, Xiangnan Yu, Junyu Jiao, Xin Song, Xing Cheng, Ming Liu, Li-liang Wang, Jiaxin Zheng, Wei Lv, Guiming Zhong, Yan-Bing He, Feiyu Kang
Summary: By cross-linking PVDF and LLZTO, high-efficiency cross-phase ion transport channels (CITCs) are constructed, which enhance the lithium-ion concentration at the PVDF-LLZTO interface and provide continuous low-barrier lithium-ion pathways. The CITCs increase the proportion of interfacial lithium-ion transport in CSEs and promote the lithium-ion transport contribution of LLZTO.
CELL REPORTS PHYSICAL SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Huifa Shi, Weiyi Sun, Jiakai Cao, Sa Han, Guixia Lu, Zahid Ali Ghazi, Xiaoyang Zhu, Hongbo Lan, Wei Lv
Summary: Lithium-sulfur (Li-S) batteries have high theoretical energy density but their practical energy density is lower due to difficulty in reducing electrolyte dosage. This review discusses the challenges and solutions for assembling high-performance lean-electrolyte Li-S batteries. Key challenges arising from lean-electrolyte conditions are discussed, followed by a review of approaches to reduce electrolyte usage and recent progress in areas such as electrode optimization, electrolyte regulation, and Li metal protection. Future research directions in lean-electrolyte Li-S batteries are proposed.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Chemical
Yufei Zhao, Chuannan Geng, Li Wang, Haotian Yang, Wei Lv, Quan-Hong Yang
Summary: Metal sulfide (MS) shows promise as a catalyst in Li-S batteries due to its good conductivity, strong adsorption ability, and excellent catalytic activity. However, the relationship between its properties and electrochemical performance is still unclear, and further discussions are required to improve its design in Li-S batteries.
