Article
Physics, Applied
Yue Wu, Shou-Zhe Li, Yu-Long Niu, Hui-Jie Yan, Dezheng Yang, Jialiang Zhang
Summary: An atmospheric-pressure microwave plasma torch (APMPT) was used to drive the Boudouard reaction to convert CO2 into CO with storable chemical energy. The conversion and energy efficiency were determined by analyzing the gas composition using a Fourier transformation infrared spectrometer and gas chromatograph. The effects of plasma state, microwave power, gas flow rate, Ar-CO2 mixture ratio, and carbon material on the conversion and energy efficiency were investigated. Use of herbaceous biomass and increased microwave power led to higher conversion efficiency, while high CO2 percentage and increased gas flow rate had a negative influence on CO2 conversion.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Energy & Fuels
Jinhu Li, Kiran G. Burra, Zhiwei Wang, Xuan Liu, Ashwani K. Gupta
Summary: This study investigated the effect of ion-exchange sodium concentration on gasification process, and examined the influence of different temperatures on the yield of syngas components, energy efficiency, and CO2 consumption. The results showed that ion-exchange sodium had a catalytic effect on gasification, enhancing the yield of syngas and energy generation. Higher temperatures also led to increased syngas yield, energy efficiency, and CO2 consumption.
Article
Chemistry, Physical
Yongxiang Yin, Tao Yang, Zhikai Li, Edwin Devid, Daniel Auerbach, Aart W. Kleyn
Summary: Converting CO2 into CO with plasma processing is a potential method to convert intermittent sustainable electricity into storable chemical energy. Challenges in developing this technology include achieving efficient CO2 conversion with high energy efficiency and proving its feasibility on an industrial scale.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Jingying Huang, Hao Zhang, Qinhuai Tan, Li Li, Ruiyang Xu, Zemin Xu, Xiaodong Li
Summary: The study investigated the CO2 reaction with biochar via the Boudouard reaction in an atmospheric non-thermal plasmatron for enhanced conversion of CO2 into O2-free fuel gas. It was found that by adding coconut shell biochar, the net Boudouard reaction became the dominant contributor to CO2 conversion, leading to significantly higher CO yield and lower O2 concentration in the products compared to the CO2 decomposition process.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Chemistry, Multidisciplinary
Xinru La, Jurong Ren, Mengyuan Wen, Xianzhi Meng, Jia Wang, Jianchun Jiang, Arthur J. Ragauskas
Summary: This study investigates an environmentally friendly method for CO production through the variable frequency microwave-driven CO2 Boudouard reaction over biochar. The resonance effect at 4225 MHz significantly enhances CO2 conversion efficiency and energy efficiency, resulting in a remarkable increase in productivity compared to electrical heating. Continuous microwave irradiation at the optimized frequency also improves the pore structure and surface area of biochar.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Environmental Sciences
Yang Luo, Xiaofeng Yue, Hongli Zhang, Xiaoping Liu, Zhengwei Wu
Summary: Efforts to develop efficient methods for converting carbon dioxide have gained increasing interest. Non-thermal plasma technology shows potential but has underwhelming energy efficiency. A comprehensive analysis of past research results is crucial for proposing effective energy-saving schemes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Energy & Fuels
Jinhu Li, Kiran G. Burra, Zhiwei Wang, Xuan Liu, Somrat Kerdsuwan, Ashwani K. Gupta
Summary: The study explores safe disposal of cigarette butts through thermochemical processes like pyrolysis and gasification. High temperatures significantly enhance gasification reactions, increasing syngas flowrate, yield, and efficiency while reducing tar yield and reaction time. Energy recovery from gasification is higher compared to pyrolysis, with CO2 utilization providing effective conversion and valuable syngas production.
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
(2021)
Article
Chemistry, Multidisciplinary
Sumin Li, Bao Zhang, Guangqin Gu, Dongyang Fang, Xiaochen Xiang, Wenhe Zhang, Yifei Zhu, Jiao Wang, Junmeng Cuo, Peng Cui, Gang Cheng, Zuliang Du
Summary: The triboelectric plasma method efficiently reduces CO2 emissions and achieves high energy conversion efficiency by harvesting mechanical energy and driving chemical reactions. The low average electron energy in the plasma and the low barrier for vibrational excitation dissociation of CO2 are key factors.
Article
Biochemistry & Molecular Biology
Huan Dai, Hong Zhao, Siyuan Chen, Biao Jiang
Summary: In this study, CO2 was converted into CO through microwave-assisted Boudouard reaction, achieving high conversion efficiency with the addition of a promoter. The apparent activation energy of the reaction under microwave heating was significantly lower, indicating it as a promising method for carbon dioxide utilization.
Article
Chemistry, Multidisciplinary
Debjyoti Ray, Piu Chawdhury, K. V. S. S. Bhargavi, Shashidhar Thatikonda, N. Lingaiah, Ch Subrahmanyam
Summary: Direct activation of undiluted CO2 was conducted in a co-axial dielectric barrier discharge (DBD) reactor with the integration of catalyst, showing improved conversion rates. Catalyst oxygen vacancies play a crucial role in performance enhancement, especially with CeO2 contributing to achieving the highest carbon balance.
JOURNAL OF CO2 UTILIZATION
(2021)
Review
Chemistry, Multidisciplinary
Atif Abdalazeez, Tianle Li, Wenju Wang, Siddig Abuelgasim
Summary: Carbon gasification in molten alkali carbonate salts over CO2 is an effective process for producing gaseous fuels and reducing the greenhouse effect. Alkali carbonate salts facilitate the Boudouard reaction which is difficult to occur at high temperatures without a catalyst. Combining CO2 gasification of biomass and coal with alkali carbonate salts can enhance carbon conversion rates and CO yields.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Engineering, Environmental
An Wang, Zhongyu Hou
Summary: In this paper, a novel design of surface dielectric barrier discharge (SDBD) reactor is proposed to control the flow fields in order to improve conversion efficiency in removing NO by plasma. The research investigates the influence of special input energy, inlet NO concentration, relative humidity, and oxygen content on NO conversion, with simulations on velocity, turbulence kinetic energy distribution, and temperature during discharge. The study finds that configuration (a) generally outperforms configuration (b) in terms of conversion efficiency and energy efficiency in most cases.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
M. Umamaheswara Rao, K. V. S. S. Bhargavi, Piu Chawdhury, Debjyoti Ray, Siva Rama Krishna Vanjari, Ch. Subrahmanyam
Summary: This research focuses on the decomposition of carbon dioxide (CO2) into carbon monoxide (CO) and oxygen (O2) using dielectric barrier discharge (DBD) in a non-thermal plasma reactor at ambient conditions. The effect of filamentary micro discharges generated during plasma on CO2 conversion is significant. Different packing materials such as quartz wool and glass capillary were investigated for their influence on CO2 conversion.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Thermodynamics
Wei Guo, Qinchuan Yang, Sunhua Deng, Qiang Li, Youhong Sun, Jianzheng Su, Chaofan Zhu
Summary: This study successfully investigated the oil shale heating method called autothermic pyrolysis in situ conversion process (ATS) and demonstrated its feasibility and high efficiency at a laboratory scale. The results showed that ATS yielded pyrolysis oil with a higher proportion of light components compared to the high-temperature nitrogen in situ conversion process (HNICP). These findings highlight the advantages and feasibility of ATS for large-scale commercial development of oil shale.
Article
Energy & Fuels
E. R. Mercer, S. Van Alphen, C. F. A. M. van Deursen, T. W. H. Righart, W. A. Bongers, R. Snyders, A. Bogaerts, M. C. M. van de Sanden, F. J. J. Peeters
Summary: This paper investigates the effects of post-plasma placement of a converging-diverging nozzle in a vortex-stabilized CO2 microwave plasma reactor on energy efficiency and conversion. Results show that the nozzle significantly improves energy efficiency and conversion, especially at low flow rates and subatmospheric pressure.
Article
Chemistry, Physical
Yanbo Deng, Shijie Liu, Lian Fu, Yi Yuan, Anmin Zhao, Dajun Wang, Heng Zheng, Like Ouyang, Shaojun Yuan
Summary: The efficiency of CO oxidation catalysts can be improved under wet conditions by controlling the metal-support interaction of Pd/Pr-CeO2 catalysts.
JOURNAL OF CATALYSIS
(2023)
Article
Green & Sustainable Science & Technology
Jianfei Xiao, Yufang Zhang, Tian C. Zhang, Shaojun Yuan
Summary: A novel Prussian blue-impregnated waste pomelo peels-derived biochar (PB/NBCs) was developed to capture ammonia in composting gases, showing excellent adsorption capability and recyclability.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Multidisciplinary
Yuan Wang, Tao Zhang, Jianfei Xiao, Xiaobao Tian, Shaojun Yuan
Summary: In this study, a rapid and simple flame synthesis method was proposed for the preparation of nanosized Fe2O3 functionalized materials doped with high-valence metal ions. The resulting materials exhibited enhanced Na+ adsorption and increased oxygen deficiency, as well as improved electrochemical activity and charge transfer efficiency. The Ti-FeO-CNT electrode demonstrated excellent specific capacitance, and the Ti-FeO-CNT//MnO2 solid-state flexible asymmetric supercapacitor showed high energy density and stability. The flame synthesis method opens up new avenues for energy and catalysis research.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Chunhui Wu, Zifan Pei, Menglin Lv, Duchen Huang, Yuan Wang, Shaojun Yuan
Summary: A polypyrrole-coated low-crystallinity Fe2O3 supported on carbon cloth (D-Fe2O3@PPy/CC) was prepared by chemical reduction and electrodeposition methods. The low-crystallinity Fe2O3 nanorod achieved using a NaBH4 treatment offered more active sites and enhanced the Faradaic reaction. The construction of a PPy layer gave more charge storage and increased the stability of the electrode.
Article
Chemistry, Physical
Qiang Huang, Chengfan Fu, Zhiyu Liang, Fei Qi, Chengwei Luo, Bomin Feng, Chuanhui Liang, Mao Yang, Xinchun Mao, Dongping Wang, Aart W. Kleyn
Summary: This paper investigates the integration of radiofrequency inductively coupled plasma (RF-ICP) and lead-free halide perovskite photocatalysts to facilitate CO2 conversion. The plasma modifies the photocatalyst to enhance its catalytic activity, while photons and vibrationally excited molecules also promote CO2 conversion in the plasma. Compared to previous work, the radiofrequency plasma filled with Cs2TeCl6@Cu exhibits the highest CO2 conversion ratio of 86.5% at a specific energy of 30 eV/molecule. This synergistic effect between RF-ICP and the photocatalyst could significantly improve the reaction efficiency, providing new opportunities for efficient CO2 conversion in large-scale practical applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Biochemistry & Molecular Biology
Yuyi Liao, Zhongtao Shang, Guangrui Ju, Dingke Wang, Qiao Yang, Yuan Wang, Shaojun Yuan
Summary: Developing advanced carbon materials from biomass waste has gained significant attention. However, the capacitance and energy density of carbon electrodes based on the EDLC charge storage mechanism are generally unsatisfactory. In this study, an N-doped carbon material (RSM-0.33-550) was successfully prepared from reed straw and melamine, demonstrating improved capacitance and stability for supercapacitor applications.
Article
Engineering, Chemical
Wenlan Ji, Weiwei Li, Tian C. Zhang, Yuan Wang, Shaojun Yuan
Summary: To reduce the global hazards of arsenic, arsenic-containing water needs to be purified. This study synthesized dimensionally stable TNTAs/SnO2/RuO2 anodes for efficient electrocatalytic oxidation of As(III) by successively electrodepositing SnO2 and RuO2 nanoparticles on TiO2 nanotube arrays. The optimized TNTAs/SnO2/RuO2-10 anode exhibited excellent electrochemical stability and longer service lifetime, with an oxidation conversion efficiency of As(III) still maintained at 98% even after 11 cycles of usage.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Yanbo Deng, Lian Fu, Wenjia Song, Like Ouyang, Shaojun Yuan
Summary: Cerium oxide-based materials doped with valence metals can effectively increase the oxygen vacancy content and regulate the surface and interface structure of CeO2 supported metal catalysts. In this study, CeO2 nanorods doped with transition metals (Fe, Co, Mn) and Pr were prepared and used to support Pd, significantly enhancing the activity of CO catalytic oxidation. The co-doping of Pr and Fe increases the oxygen vacancy content on the catalyst surface, promotes the activation of lattice oxygen, and strengthens the interaction and electron transport ability between Pd and the support, leading to excellent catalytic performance in CO oxidation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jinchen Zhou, Daofu Wu, Changqing Tian, Zhiyu Liang, Hongmei Ran, Bo Gao, Zhongtao Luo, Qiang Huang, Xiaosheng Tang
Summary: Lead-free Cs2TiX6(X = Cl, Cl0.5Br0.5, Br) perovskite materials were successfully prepared using a facile synthetic method. The structural and optical characteristics of these materials were systematically investigated. These Ti-based perovskite materials exhibited high stability and demonstrated promising photocatalytic activity, offering a new approach to develop low-cost, eco-friendly, and bio-friendly photocatalysts.
Article
Materials Science, Coatings & Films
Ji Li, Junfeng Lu, Tian C. Zhang, Shaojun Yuan
Summary: Dodecyltrimethoxysilane (DTMS)-modified reduced graphene oxide (rGO) nanocomposites were incorporated into polyurethane (PU) sponges by dip-coating and thermal curing reduction reaction to obtain a superhydrophobic DTMS-rGO-PU sponge for oil/water separation. The hierarchical structure of DTMS-rGO nanocomposites in the PU sponge was influenced by reaction conditions and significantly affected its surface wettability. The resulting DTMS-rGO-PU sponge exhibited superior superhydrophobicity, high oil-water separation efficiency, and durability in harsh environmental conditions.
SURFACE ENGINEERING
(2023)
Article
Chemistry, Physical
Qiang Huang, Chengfan Fu, Yangyi Shen, Haowen Wang, Zhengben Wu, Zhiyu Liang, Changqing Tian, Daofu Wu, Fei Qi, Yayun Pu, Nan Zhang, Manjing Wang, Xiaosheng Tang
Summary: Efficient CO2 conversion was achieved for the first time by synergistic interaction between Cs2SnCl6 photocatalyst and H2O-assisted dielectric barrier discharge (DBD) plasma. The conversion ratio of plasma photocatalysis was 6.5% higher than that of plasma or photocatalysis alone, indicating the successful synergy between plasma catalysis and photocatalysis. The presence of H2O increased the CO2 conversion ratio by 50.6% due to enhanced charge transfer.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Zixian Wang, Jun'an Lai, Qiang Huang, Daofu Wu, Fei Qi, Nan Zhang, Yayun Pu, Changqing Tian, Weiwei Chen, Yufei Liu, Peng He, Kang An, Xiaosheng Tang, Fei Wang, Yan Liu, Genquan Han
Summary: In this paper, (TEA)(2)ZrCl6 single crystals were synthesized by a hydrothermal method and exhibited excitation wavelength-dependent emission. The introduction of Sb3+ ions increased the photoluminescence quantum yield of (TEA)(2)ZrCl6 crystals. The crystals could be recognized using different excitation wavelengths and also showed interesting radioluminescence properties.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Engineering, Environmental
Qiang Huang, Jiaxin Liu, Fei Qi, Yayun Pu, Nan Zhang, Jiayu Yang, Zhiyu Liang, Changqing Tian
Summary: Researchers synthesized lead-free Cs2AgBiI6 double perovskite and designed a highly stable Cs2AgBiI6-graphene oxide (GO) composite photocatalyst. The photodegradation rate of Sudan Red III by Cs2AgBiI6-GO was found to be 85% after 100 min, which was twice that of pure Cs2AgBiI6 and more efficient than other reported photocatalysts. This work demonstrated that GO can prevent catalyst agglomeration, provide charge carrier transport channel, and improve overall photocatalytic performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Jianfei Xiao, Yufang Zhang, Tian C. Zhang, Yuan Wang, Shaojun Yuan
Summary: This study proposes a one-pot impregnating method to synthesize a novel NH3 sorbent-boron (B)-doped biochar derived from waste orange peels impregnated with Cu3BTC2 MOFs (i.e., HKUST-1/BBC). The as-fabricated HKUST-1/BBC-5-2.5 had a high nitrogen and boron content, as well as the largest specific surface area and outstanding NH3 capture capacity. The sorption mechanism of NH3 on HKUST-1/BBC-5-2.5 was proposed to be a reactive adsorption process.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yuchan Wang, Nannan Xu, Yiming Yuan, Wenxia Zhang, Qiang Huang, Xiaosheng Tang, Fei Qi
Summary: The proportions of Cs2AgSbBr6 nanoparticles (NPs) in a PMMA film were adjusted to achieve digital and analog resistive switching (RS) behaviors in Ag/PMMA&Cs2AgSbBr6-NPs/ITO memristor devices. At a concentration of around 5 wt% of NPs in the PMMA film, the devices showed bipolar digital RS behaviors with excellent electrical characteristics. However, at a concentration of around 10 wt% of NPs, the devices exhibited analog-type memristive behavior and successfully simulated artificial synapse behaviors.
Article
Chemistry, Applied
Maoyi Yi, Jie Li, Mengran Wang, Xinming Fan, Bo Hong, Zhian Zhang, Aonan Wang, Yanqing Lai
Summary: In this study, polyacrylic acid (PAA) was used as a binder for the cathode in all-solid-state batteries. Through H+/Li+ exchange reaction, a uniform PAA-Li coating layer was formed on the cathode surface, improving the stability of the cathodic interface and the crystal structure. The SC-NCM83-PAA cathode exhibited superior cycling performance compared to traditional PVDF binder.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Yonghan Zhou, Zhongfeng Ji, Wenrui Cai, Xuewei He, Ruiying Bao, Xuewei Fu, Wei Yang, Yu Wang
Summary: By learning from the pencil-writing process, a solid-ink rubbing technology (SIR-tech) has been invented to develop durable metallic coatings on diverse substrates. The composite metallic skin by SIR-tech outperforms pure liquid-metal coating and shows great potential for various applications.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Ruiqi Tian, Hehe Zhang, Zeyu Yuan, Yuehua Man, Jianlu Sun, Jianchun Bao, Ming-Sheng Wang, Xiaosi Zhou
Summary: In this study, polypyrrole-encapsulated Sb2WO6 microflowers were synthesized and demonstrated to exhibit excellent potassium storage properties and cycling stability. The improved performance of Sb2WO6@PPy was attributed to the unique microflower structure, enhanced electronic conductivity, and protective PPy coating.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Review
Chemistry, Applied
Longxing Wu, Zhiqiang Lyu, Zebo Huang, Chao Zhang, Changyin Wei
Summary: This paper presents a comprehensive survey on physics-based state of charge (SOC) algorithms applied in advanced battery management system (BMS). It discusses the research progresses of physical SOC estimation methods for lithium-ion batteries and presents future perspectives for this field.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Honggang Huang, Yao Chen, Hui Fu, Cun Chen, Hanjun Li, Zhe Zhang, Feili Lai, Shuxing Bai, Nan Zhang, Tianxi Liu
Summary: The d-d orbital coupling induced by crystal-phase engineering effectively adjusts the electronic structure of electrocatalysts, improving their activity and stability, which is significant for electrocatalyst research.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Quanzhen Sun, Yifan Li, Caixia Zhang, Shunli Du, Weihao Xie, Jionghua Wu, Qiao Zheng, Hui Deng, Shuying Cheng
Summary: In this study, indium (In) ions were introduced into flexible Cu2ZnSn(S,Se)(4) (CZTSSe) solar cells to modify the back interface and passivate deep level defects in CZTSSe bulk. The results showed that In doping effectively inhibited the formation of secondary phase and V-Sn defects, decreased the barrier height at the back interface, passivated deep level defects in CZTSSe bulk, increased carrier concentration, and significantly reduced the V-OC deficit. Eventually, a flexible CZTSSe solar cell with a power conversion efficiency of 10.01% was achieved. This synergistic strategy of interface modification and bulk defects passivation through In incorporation provides a new approach for fabricating efficient flexible kesterite-based solar cells.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Negah Hashemi, Jafar Hussain Shah, Cejun Hu, Subhajit Nandy, Pavlo Aleshkevych, Sumbal Farid, Keun Hwa Chae, Wei Xie, Taifeng Liu, Junhu Wang, Mohammad Mahdi Najafpour
Summary: This study investigates the effects of Fe on the oxygen-evolution reaction (OER) in the presence of Au. The study identifies two distinct areas of OER associated with Fe and Au sites at different overpotentials. Various factors were varied to observe the behaviors of FeOxHy/Au during OER. The study reveals strong electronic interaction between Fe and Au, and proposes a lattice OER mechanism based on FeOxHy.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Yingshi Su, Yonghui Cheng, Zhen Li, Yanjia Cui, Caili Yang, Ziyi Zhong, Yibing Song, Gongwei Wang, Lin Zhuang
Summary: This study systematically investigates the key roles of Nafion on Cu nanoparticles electrocatalyst for CO2RR. The Nafion modifier suppresses the hydrogen evolution reaction, increases CO2 concentration and mass transfer process, and activates CO2 molecule to enhance C2 product generation. As a result, the selectivity of the hydrogen evolution reaction is reduced and the efficiency of C2 products is significantly improved.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Daijie Deng, Honghui Zhang, Jianchun Wu, Xing Tang, Min Ling, Sihua Dong, Li Xu, Henan Li, Huaming Li
Summary: By doping sulfur into vanadium nitride, the S-VN/Co/NS-MC catalyst exhibits enhanced oxygen reduction reaction activity and catalytic performance. When applied in liquid and flexible ZABs, it shows higher power density, specific capacity, and cycling stability.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Review
Chemistry, Applied
Yi Li, Fei Zhang
Summary: Self-assembly of metal halide perovskite nanocrystals holds significant application value in the fields of display, detector, and solar cell due to their unique collective properties. This review covers the driving forces, commonly used methods, and different self-assembly structures of perovskite nanocrystals. Additionally, it summarizes the collective optoelectronic properties and application areas of perovskite superlattice structures, and presents an outlook on potential issues and future challenges in the development of perovskite nanocrystals.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Anki Reddy Mule, Bhimanaboina Ramulu, Shaik Junied Arbaz, Anand Kurakula, Jae Su Yu
Summary: Direct growth of redox-active noble metals and rational design of multifunctional electrochemical active materials play crucial roles in developing novel electrode materials for energy storage devices. In this regard, silver (Ag) has attracted great attention in the design of efficient electrodes. The construction of multifaceted heterostructure cobalt-iron hydroxide (CFOH) nanowires (NWs)@nickel cobalt manganese hydroxides and/or hydrate (NCMOH) nanosheets (NSs) on the Ag-deposited nickel foam and carbon cloth (i.e., Ag/ NF and Ag/CC) substrates is reported. The as-fabricated Ag@CFOH@NCMOH/NF electrode delivered superior areal capacity value of 2081.9 μA h cm-2 at 5 mA cm-2. Moreover, as-assembled hybrid cell based on NF (HC/NF) device exhibited remarkable areal capacity value of 1.82 mA h cm-2 at 5 mA cm-2 with excellent rate capability of 74.77% even at 70 mA cm-2. Furthermore, HC/NF device achieved maximum energy and power densities of 1.39 mW h cm-2 and 42.35 mW cm-2, respectively. To verify practical applicability, both devices were also tested to serve as a self-charging station for various portable electronic devices.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Zanling Huang, Shuqi Zhu, Yuan Duan, Chaoran Pi, Xuming Zhang, Abebe Reda Woldu, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu, Xiangdong Yao
Summary: In this study, it was found that Ni sites act as a host to attract Fe(III) to form Fe(Ni)(III) binary centers, which promote the oxygen evolution reaction (OER) activity and stability by cyclical formation of intermediates. Additionally, other ions can also catalyze the OER process on different electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Jie Zeng, Jian Bao, Ya Zhang, Xun-Lu Li, Cui Ma, Rui-Jie Luo, Chong-Yu Du, Xuan Xu, Zhe Mei, Zhe Qian, Yong-Ning Zhou
Summary: The balance between cationic redox and oxygen redox is crucial for achieving high energy density and cycle stability in sodium batteries. This study demonstrates the reversible Mn2+/Mn4+ redox in a P3-Na0.65Li0.2Co0.05Mn0.75O2 cathode material through Co substitution, effectively suppressing the contribution of oxygen redox and improving structure stability.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Daniela M. Josepetti, Bianca P. Sousa, Simone A. J. Rodrigues, Renato G. Freitas, Gustavo Doubek
Summary: Lithium-oxygen batteries have high energy density potential but face challenges in achieving high cyclability. This study used operando Raman experiments and electrochemical impedance spectroscopy to evaluate the initial discharge processes in porous carbon electrodes. The results indicate that the reaction occurs at the Li2O2 surface and the growth of Li2O2 forms a more compact and homogeneous structure.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Ziqi Zhang, Jinyun Xu, Yu Zhang, Liping Zhao, Ming Li, Guoqiang Zhong, Di Zhao, Minjing Li, Xudong Hu, Wenju Zhu, Chunming Zheng, Xiaohong Sun
Summary: This paper explores the challenge of increasing global CO2 emissions and highlights the role of porous metal oxide materials in electrocatalytic reduction of CO2 (CO2RR). Porous metal oxides offer high surface area and tunability for optimizing CO2RR reaction mechanisms.
JOURNAL OF ENERGY CHEMISTRY
(2024)