Article
Chemistry, Physical
Zhi Zhou, Jing-Pei Cao, Yan Wu, Qi-Qi Zhuang, Xiao-Yan Zhao, Yu-Lei Wei, Hong-Cun Bai
Summary: This study successfully synthesized N/O-doped carbon spheres from waste sugar solution, demonstrating excellent electrochemical performance with high specific capacitance and energy density, providing a new method for energy storage applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Electrochemistry
Yunjie Ping, Shiju Yang, Jinzhao Han, Xu Li, Haoliang Zhang, Bangyun Xiong, Pengfei Fang, Chunqing He
Summary: N-self-doped graphitic carbon aerogels (NGCA) with hierarchically porous tunnels, high graphitization degree, high N content, and 3D conductive network structure were successfully prepared by dry-freezing and successive high temperature treatment of ZIF8/carboxymethylcellulose (CMC)/potassium ferrate (K2FeO4) composites. When used in a supercapacitor, NGCA showed excellent capacitive performance and remarkable energy-power characteristics, confirming its potential as a high-performance electrode material.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Xiangyu Lu, Liping Ge, Peixia Yang, Oleg Levin, Veniamin Kondratiev, Zhenshen Qu, Lilai Liu, Jinqiu Zhang, Maozhong An
Summary: By tactfully introducing nitrogen source in the carbonization process, N-doped carbon nanosheets with increased density of pore structures and effective active sites were designed, leading to excellent ORR activity and durability in alkaline medium. This optimized catalyst also displayed outstanding stability and high peak power density, outperforming Pt/C catalyst when used in Zn-air battery as an ORR catalyst, providing a feasible and universal strategy for fabricating metal-free ORR catalysts.
APPLIED SURFACE SCIENCE
(2021)
Article
Energy & Fuels
Kaiying Wei, Feng Zhang, Ying Yang, Bin Zhai, Xiuying Wang, Yu Song
Summary: This study successfully prepared oxygenated N-doped porous carbon with high surface area, demonstrating excellent electrochemical performance. By carbonizing ammonium alginate aerogel and conducting air activation treatment, the porous carbon exhibited high specific capacitance, good rate capability, and ultralong cycle life when used as electrode materials for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Lei E, Jiaming Sun, Wentao Gan, Zhenwei Wu, Zhou Xu, Lifei Xu, Chunhui Ma, Wei Li, Shouxin Liu
Summary: The study synthesized a porous N-doped carbon aerogel with a interconnected honeycomb-like structure using cellulose and polypyrrole as raw materials, demonstrating its potential as an electrode material for high-performance supercapacitors. The carbon aerogel exhibited excellent performance, including high specific capacitance, good charging/discharging rates, and outstanding cycling stability.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Meng-Lin Wang, Zi-Han Zhou, Jin-Long Zhu, Hao Lin, Kun Dai, Hua-Dong Huang, Zhong-Ming Li
Summary: This study successfully prepared intrinsic N-doped biomass-based carbon aerogels and accurately controlled the content and type of doping elements by controlling the carbonization temperature and precursor content. The biomass-based carbon aerogels exhibited excellent electromagnetic interference (EMI) shielding performance, which originated from multiple mechanisms.
Article
Chemistry, Physical
Marjetka Savic, Aleksandra Janosevic Lezaic, Nemanja Gavrilov, Igor Pasti, Bojana Nedic Vasiljevic, Jugoslav Krstic, Gordana Ciric-Marjanovic
Summary: Composites of N,O-doped carbon/ZnO/ZnS and N,O-doped carbon/ZnO (C-(MOF-5/PANI)) were synthesized by the carbonization of MOF-5/PANI composites. These composites were comprehensively characterized and exhibited high S-BET, electrical conductivity, and specific capacitance. Acid etching treatment further improved the surface area and capacitance, making them promising electrode materials for supercapacitors.
Article
Chemistry, Applied
Jiafei Ren, Jianyu Feng, Linbin Wang, Guangxin Chen, Zheng Zhou, Qifang Li
Summary: A UV-initiated thiol-ene click reaction was used to synthesize a multifunctional POSS-based silane coupling agent OTS, which then was utilized with tetraethyl orthosilicate as precursors to prepare a series of hybrid aerogels with different OTS contents. These hybrid aerogels showed more uniform mesoporous structure and higher specific surface area compared to silica aerogels prepared from single TEOS, and had potential applications as adsorbents or thermal insulation materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Physical
Zhang Yisheng, Li Qian, Li Huayi, Wang Li, Hu Youliang
Summary: Nitrogen-doped porous carbon with controllable specific surface area and nitrogen content was prepared by pretreating chlorinated polypropylene with nitrogen-containing compounds. The results showed that specific surface areas and nitrogen content could be effectively increased by altering the structure of NCCs.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Multidisciplinary
Dan Sun, Wei Li, Rongting Guo, Qiuqun Liang, Zheng Liu, Guo-Cheng Han
Summary: A new C@SnO2 composite was prepared using siraitia grosvenorii residue and SnCl2, followed by N-doped C@SnO2 composites prepared through hydrothermal-doping method. These composites were then used as negative electrodes in a simulated lead-carbon battery, showing promising electrochemical performance with high specific capacity retention rate after 200 cycles.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Chemistry, Physical
Jie Yang, Cuiping Gu, Mengmeng Zhao, Chunyu Meng, Xiaojing Lu, Haibo Ren, Sang Woo Joo, Jiarui Huang
Summary: In this study, Ga2O3 nanotubes coated with N-doped carbon layers were prepared using MoO3 nanorods as sacrificial templates followed by a poly-dopamine coating and heat treatment process. The resulting tubular structure provided cavities for volume changes of the Ga2O3 and shortened the migration path of Li ions and electrons, leading to improved cycling stability and rate performance of the battery.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Shuaipeng Liu, Yan Dong, Chengwei Deng, Feijiang Chen, Yu Su, Sheng-Yi Li, Sailong Xu
Summary: A unique lattice confinement method was used to prepare a low-content SnO2 nanodots on N-doped reduced graphene oxide (SnO2@N-rGO) composite as anode nanomaterials for LIBs and SIBs. The composite exhibited advantageous features of low-content and uniform SnO2 nanodots, as well as high conductivity. The precursor-based lattice confinement method shows great potential in designing and preparing anode nanomaterials for electrochemical energy storage.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Qian Shi, Kaiyun Chen, Zhonghai Yu, Minxia Fang, Zhiyong Dai, Jingxiao Wang, Kun Cao, Fanghua Tian, Yin Zhang, Sen Yang, Xuan Zhou
Summary: In this work, N and S co-doped carbon nanofibers coated with cobalt sulfide nanoparticles were synthesized and used as anode materials for Li+/Na+ storage. The doped N and S improved the conductivity of the carbon nanofibers and facilitated the diffusion of Li+/Na+. The synthesized composite exhibited excellent reversible capacity and could enhance the adsorption of Li+/Na+.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Shiman Zhai, Ruonan Chen, Jingxin Liu, Jiangyan Xu, Hongmei Jiang
Summary: A porous N-doped magnetic carbon aerogel showed high adsorption capacity for the removal of organic dye Congo red, with well-developed porous morphologies, high specific surface areas, and excellent magnetic properties. Study results indicated that the maximum adsorption capacity of the composite was significantly higher than that of the non-doped aerogel.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Electrochemistry
Hong Xiao, Tengfei Zhang, Xiao Liang, Qiuming Gao
Summary: High surface area and nitrogen content HSN-rGO was prepared through a series of reduction and doping processes, showing excellent adsorption and catalytic capabilities for LiPSs in Li-S battery. The HSN-rGO modified separator effectively inhibits the shuttle effect of LiPSs and accelerates redox reaction kinetics, leading to high-performance Li-S battery with long cycle life.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)
