Article
Chemistry, Analytical
Xiaomin Lang, Dandan Chu, Yan Wang, Danhua Ge, Xiaojun Chen
Summary: The effects of phosphorus doping on the electrochemical performances of NiCo2S4 electrodes were investigated, and it was found that phosphorus doping improved the sensing performances and feasibility of glucose detection.
Article
Environmental Sciences
Yegeng Sun, Wei Zhang, Qing Wang, Ning Han, Avelino Nunez-Delgado, Yue Cao, Weimeng Si, Fagang Wang, Shaomin Liu
Summary: A mesoporous carbon derived from beancurd was used as a support for Au@Pd@Pt core-shell catalysts, showing higher ORR activity, specific, and mass activities compared to commercial Pt/C catalyst. The sample exhibited excellent durability after 20000 cycles of rapid testing, indicating promising potential for environmental applications.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Bo Wang, Lin Gu, Fei Yuan, Di Zhang, Huilan Sun, Jian Wang, Qiujun Wang, Huan Wang, Zhaojin Li
Summary: This study investigates nitrogen-doped graphitic carbon materials as anodes for potassium-ion batteries. The researchers found that a high edge-N doping ratio increases active sites and promotes capacitive-controlled K-storage. They also discovered that the N-5 configuration has a significant effect on interlayer spacing. The resulting ENGC-850 electrode exhibits high capacity, excellent rate capability, and prolonged cycle lifespan.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Xiang Song, Xing Chen, Wenqing Chen, Tianqi Ao
Summary: Phosphorus reduction is crucial for controlling eutrophication and protecting the aquatic environment. Capacitive deionization (CDI) is a low-cost and environmentally friendly electrochemical approach for phosphorus removal. In this study, a nitrogen-doped carbon aerogel framework encapsulated with ZrO2 nanoparticles (ZrNC) was developed for phosphorus removal. The ZrNC electrode demonstrated superior phosphorus capture, low energy consumption, outstanding phosphorus selectivity, and excellent stability. Mechanism investigation revealed the formation of inner-sphere complexes (Zr-O-P) through ligand exchange with ZrO2 sites and electrostatic attraction to unsaturated Zr sites and N species. This study presents a promising concept for designing and applying metal oxide/carbon complexes in selective phosphorus uptake electrodes.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Multidisciplinary
Dong Liu, Tong Guo, Dekun Xu, Guangyu Xu, Zhoulei Wang, Baomin Fan, Yigang Ding
Summary: Favourable pore configuration and active heteroatoms contribute significantly to intrinsic electrochemical performance of carbon materials. N, S co-doped porous carbons are prepared through a two-step calcination process. The optimal sample CTK-3 exhibits considerable specific surface area, remarkable micropore configuration, and high heteroatom content, leading to remarkable specific capacitance, cyclic stability, rate capability, and ultrahigh energy density.
Article
Nanoscience & Nanotechnology
Yuqing Bai, Le Wei, Yuebin Lian, Zhihe Wei, Daqi Song, Yanhui Su, Xiong Zhu, Wenxuan Huo, Jian Cheng, Yang Peng, Zhao Deng
Summary: A microreactor-type catalyst is designed and fabricated by embedding Ru nanoparticles into the shells of mesoporous hollow carbon spheres to solve the issue of cyclic accumulation of insulative and insoluble Li2CO3 on the cathode surface in Li-CO2 batteries, effectively improving the battery's cyclability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yong Zheng, Shan Chen, Kai A. Zhang, Jingyu Guan, Xiaohui Yu, Wei Peng, Hui Song, Jixin Zhu, Jingsan Xu, Xiaoshan Fan, Chao Zhang, Tianxi Liu
Summary: A template-free strategy was developed to prepare nitrogen, sulfur dual-doped hollow mesoporous carbon nanospheres (N/S-HMCSs) as oxygen reduction reaction electrocatalysts. The resulting N/S-HMCS900 exhibited high N and S contents, large specific surface areas, rich and uniform mesopores distribution, and excellent catalytic activity. Density functional theory calculations showed that N, S-dual dopant can create extra active sites with higher catalytic activity. This strategy provides new insights into the construction of multi-heteroatom-doped carbon materials for various electrochemical applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Lingqi Huang, Zhiyong Luo, Wenjie Han, Qi Zhang, He Zhu, Shiping Zhu
Summary: In this study, hollow porous carbons (HPCs) were prepared using a simple and cost-effective method, and their potential in catalysis was demonstrated through the fabrication of Au@HPCs yolk-shell composites.
Article
Chemistry, Physical
Yuxiang Song, Ping Yang
Summary: This study investigated the application of transition metal-doped carbon nanotubes in electrochemical catalytic reactions, showing excellent activity for electrocatalytic water splitting through the formation of MoS2/Co/N-doped carbon heterostructures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Analytical
Lei Zhu, Jianan Wang, Jianwei Liu, Muhammad Salman Nasir, Jinwei Zhu, Shanshan Li, Jidong Liang, Wei Yan
Summary: By incorporating Zn2+ doping and optimizing the structure design, the 15wt% ZZS HNFs were successfully synthesized to achieve sensitive monitoring of low concentration HCHO, exhibiting excellent gas sensing performance and fast response rate. The high sensitivity of HCHO in the smart detection device highlights the potential for future smart indoor air quality monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Bhavana Joshi, Edmund Samuel, Yong-il Kim, Govindasami Periyasami, Mostafizur Rahaman, Sam S. Yoon
Summary: Carbon nanofibers loaded with bimetallic hollow nanocage structures were synthesized and evaluated as anode materials for lithium-ion batteries. The composite anodes exhibited higher capacity and long-term stability, making them promising materials for use in portable LIBs.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Jiahao Ju, Anding Xu, Yang Song, Hao Sun, Lili Fu, Yurong Yan, Songping Wu
Summary: This study presents a high-powered electrode material for potassium-ion batteries, FeS2@HCS, which exhibits superior capacity and rate capability due to the unique microstructure of FeS2 nanoparticles anchored on the inner wall of hollow carbon spheres and the protective N/S-doped carbon shell.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Yuepeng Liu, Shuo Zhao, Chao Zhang, Jiasheng Fang, Liying Xie, Yuming Zhou, Shuping Zhuo
Summary: The study demonstrates the enhancement of photocatalytic performance of carbon nitride through carbon doping and hollow tubular structure, leading to a significant increase in hydrogen evolution rate. The carbon content has a significant impact on the structure and photocatalytic activity of carbon nitride, while the hollow tubular structure can increase the specific surface area and visible light absorption capacity.
Article
Chemistry, Inorganic & Nuclear
Peng Du, Kan Mi, Fangdong Hu, Xiaolei Jiang, Xiuwen Zheng
Summary: Na3V2O2(PO4)(2)F, as a promising cathode material for sodium-ion batteries, has high voltage and theoretical energy density but low electrical conductivity. Mn-doping, leading to the successful synthesis of NVMOPF-0.050, significantly improves the electrochemical performance of these materials in sodium ion batteries.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Xinhui Liu, Jing Xie, Yakun Tang, Jia Guo, Zhenjiang Lu, Baolin Liu, Hongyu Zhang, Yali Cao
Summary: A unique sandwich structure composed of bismuth nanoparticles coated with carbon nanolamella and carbon nanolayers has been skillfully designed to alleviate volume expansion and pulverization of bismuth anodes in lithium-ion batteries. This structure also enhances charge transfer kinetics and provides a large surface area for electrolyte penetration and storage, resulting in superior capacity, long cycling stability, and improved rate performance.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Wang Zhang, Liwei Lin, Ligong Zhang, Yejung Choi, Youngseul Cho, Tianyu Chen, Jiefeng Gao, Hang Yao, Yuanzhe Piao
Summary: The M-CNC strain sensor exhibits stable conductivity, superior sensing performance, and excellent antibacterial properties, making it suitable for various applications in the healthcare field.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Physical
Dongwon Kim, Seungman Park, Bingyi Yan, Hwichan Hong, Youngseul Cho, Jeongmin Kang, Xinyu Qin, Taehyun Yoo, Yuanzhe Piao
Summary: In this study, a remarkably thin Co-Fe phosphide/carbon (CFP) nanosheet is presented as an oxygen evolution reaction (OER) catalyst. The CFP nanosheet exhibits high catalysis capability and can be potentially applied in other fields of energy material synthesis.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hui Gao, Jeongyeon Lee, Qixiao Lu, Yoonbin Kim, Kang Ho Shin, Ho Seok Park, Zhonghua Zhang, Lawrence Yoon Suk Lee
Summary: This study reports the use of N-doped carbon-wrapped antimony nanoparticles as anode materials for potassium- and sodium-ion batteries. The material exhibits superior rate capabilities and excellent cycle stabilities, demonstrating its potential for practical energy storage applications.
Article
Chemistry, Multidisciplinary
Hoonsub Kim, Pyung Won Im, Chaedong Lee, Hwichan Hong, Wooseung Lee, Changhyuk Koo, Sang Yoon Park, Hyung-Jun Im, Sun Ha Paek, Yuanzhe Piao
Summary: Currently, there is a growing research interest in the use of superparamagnetic iron oxide nanoparticles (SPIONs) for magnetic hyperthermia applications. In this study, angle-shaped SPIONs were successfully synthesized using the bromide-assisted polyol method. The effect of bromide concentration on the shape of the SPIONs and their heating characteristics under an alternating magnetic field (AMF) was thoroughly investigated. The results suggest that the angle-shaped SPIONs synthesized with the optimized bromide concentration can provide efficient magnetic hyperthermia therapy for cancers under biologically safe AMF conditions.
Article
Chemistry, Multidisciplinary
Youngseul Cho, Kyu Sang Lee, Shuqing Piao, Taek-Gyoung Kim, Seong-Kyun Kang, Sang Yoon Park, Kwanghyun Yoo, Yuanzhe Piao
Summary: A SiMP/2D CNT wrapping composite was synthesized through a freeze-drying method, where CNTs were wrapped on the SiMP surface in the form of a 2D sheet, forming a conductive network and mesh-like structure. The SiMP/CNT wrapping 9 : 1 electrode exhibited good rate and cycle performance, along with superior initial coulombic efficiency and preserved electrical conductivity.
Article
Chemistry, Physical
Lulu Lyu, Gi-Hyeok Lee, Suwon Lee, Mihui Park, Huiling Huang, Xinghui Liu, Yong-Mook Kang, Yuanzhe Piao
Summary: Pseudocapacitors, achieved through surface redox reactions, have higher capacitances than electrical double-layer capacitors. However, balancing the capacitance and kinetics of the positive and negative electrodes is necessary for full energy release. In this study, A-MMO and N,P-VOx, designed with comparable capacitances, exhibited high rates due to the presence of surface cation vacancies and amphoteric N and P species. The results reveal the critical roles of CVAs and amphoteric species in regulating the electronic structure and electrochemical activity of pseudocapacitive materials, leading to the development of a high-energy density and mechanically flexible A-MMO//N,P-VOx pseudocapacitor.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Engineering, Environmental
Youngseul Cho, Myeongseok Jang, Kyu Sang Lee, Eunji Lee, Sang Yoon Park, Yuanzhe Piao
Summary: Lithium-sulfur (Li-S) batteries have attracted attention for their high theoretical energy density and cost-effectiveness. However, challenges such as sluggish redox reactions and polysulfide dissolution have limited their practical application. A recent study used anthraquinone-based organic molecules in Li-S batteries and found that it improved the electrochemical performance. The study also suggested the use of anthraquinone-based conjugated microporous polymer (CMP) as an electrode additive for better cycling stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Youngseul Cho, Eunji Lee, Kyu Sang Lee, Seon Jae Hwang, Chae Won Kim, Taek-Gyoung Kim, Seong-Kyun Kang, Sang Yoon Park, Kwanghyun Yoo, Yuanzhe Piao
Summary: Conductive additives play a crucial role in improving the performance of Si anode in lithium-ion batteries. By using well-dispersed CNT ink as an additive, a unique hybrid conductive network composed of 0D and 1D carbon materials is formed, improving the electrical conductivity and structural integrity of the electrode and enhancing the electrochemical performance of the battery.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Xusen Li, Liwei Lin, Tianyu Chen, Sumin Park, Minjun Bae, Youngseul Cho, Jeongyeon Lee, Wang Zhang, Yuanzhe Piao, Guowang Diao
Summary: In this study, a rapid and simple method for preparing porous carbon (PC) using microwave irradiation was proposed. Oxygen-rich PC was synthesized by irradiating potassium citrate and ZnCl2 in air. The use of ZnCl2 allowed for microwave absorption through dipole rotation, converting heat energy in the reaction system. Potassium salt etching was found to enhance the porosity of the PC. The resulting PC had a large specific surface area (902 m2/g) and exhibited significant specific capacitance (380 F/g) in the three-electrode system at 1 A/g. The assembled supercapacitor device based on PC-375W-0.4 showed energy and power densities of 32.7 W·h·kg-1 and 0.65 kW·kg-1, respectively, at a current density of 1 A/g. Even after 5000 cycles at a current density of 5 A/g, the PC retained 94% of its initial capacitance, demonstrating excellent cycle life.
Article
Chemistry, Physical
Taehyun Yoo, Ji Young Maeng, Seungman Park, Minjun Bae, Yonghwan Kim, Juhyung Choi, Hwichan Hong, Seon Jae Hwang, Eunji Lee, Yuanzhe Piao
Summary: This study reports the synthesis of cobalt iron phosphide@graphitic carbon nitride nanosheet (CFP@CN) modified separator for lithium-sulfur batteries. The Li-S cell with CFP@CN separator exhibits high specific capacity, low capacity decay rate, and high coulombic efficiency, which can alleviate the shuttle effect and sluggish redox kinetics. These results provide useful insights for designing materials for modified separators of lithium-sulfur batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Wang Zhang, Zhiqiang Zheng, Liwei Lin, Xi Zhang, Minjun Bae, Jeongyeon Lee, Ju Xie, Guowang Diao, Hyung-Jun Im, Yuanzhe Piao, Huan Pang
Summary: A microwave method using graphene oxide (GO) is proposed to design cyclodextrin-based metal-organic framework (CD-MOF)/GO composites with controlled crystal size. The CD-MOF/GOs possess high adsorption performance and good electrochemical properties, making them promising for energy storage devices.
Article
Chemistry, Multidisciplinary
Seungman Park, Chae Won Kim, Kyu Sang Lee, Seon Jae Hwang, Yuanzhe Piao
Summary: Developing a facile strategy to enhance the stability of transition metal phosphides for practical applications is important yet challenging. In this study, a densely packed free-standing film consisting of carbon-coated FeP nanoparticles anchored on P-doped graphene was designed. This film showed enhanced electron/ion transport kinetics, improved air stability, and excellent oxidation resistance, enabling stable and high-performance alkali metal-ion batteries.
Article
Chemistry, Multidisciplinary
Liwei Lin, Shuqing Piao, Yejung Choi, Lulu Lyu, Hwichan Hong, Dohyeong Kim, Jeongyeon Lee, Wang Zhang, Yuanzhe Piao
Summary: Water electrolysis has gained significant attention for its potential applications in sewage disposal, microorganism treatment, and large-scale hydrogen production. Transition metal nitrides (TMNs) have attracted interest due to their similar physical properties to metallic elements and unique electron orbital structures. Nanostructured TMNs with dispersed active sites exhibit improved electrocatalytic performance. This review summarizes the progress of TMNs-based catalysts in structural and electronic engineering for enhanced electrocatalytic performance, particularly in hydrogen evolution, oxygen evolution, and water splitting.
Article
Chemistry, Multidisciplinary
Seungman Park, Dongwon Kim, Myeongseok Jang, Taejin Hwang, Seon Jae Hwang, Yuanzhe Piao
Summary: In this study, a novel expanded sandwich-like heterostructure of iron-phosphide nanosheets in between reduced graphene oxide (expanded FeP NSs@rGO) was fabricated using polystyrene beads as a sacrificial template. The structure showed long-term stability, high ionic conductivity, and remarkable electrochemical performances as a sodium-ion battery anode.
Article
Materials Science, Multidisciplinary
Jeongyeon Lee, Tae Hyung Lee, Ho Won Jang, Ho Seok Park
Summary: Lithium-air batteries are considered a promising alternative to lithium-ion batteries, but face limitations due to technical issues. Carbon nanostructures are being extensively researched to improve the performance of LABs. In the future, chemical modifications and design will continue to be key in enhancing battery performance.
