Article
Chemistry, Physical
Zhipeng Yu, Xian-Kui Wei, Junyuan Xu, Yue Li, Ana Araujo, Joaquim L. Faria, Rafal E. Dunin-Borkowski, Lifeng Liu
Summary: The study presents a simple and cost-effective approach to prepare efficient noble metal phosphide catalysts for small organic molecule electro-oxidation reactions. The synergistic effect between noble metal phosphide and noble metal contributes to improved activity, poisoning tolerance, and stability, showing promise for applications in direct liquid fuel cells.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Fuzhan Song, Tong Zhang, Yuqin Qian, Jeremy Shaw, Shutang Chen, Gugang Chen, Yujie Sun, Yi Rao
Summary: A facile strategy to synthesize earth abundant nickel boride nanoparticles supported on reduced graphene oxide (Ni3B/rGO) as multifunctional electrocatalysts for both hydrogen oxidation reaction and overall water splitting is reported. The Ni3B/rGO catalysts exhibit comparable performance to commercial Pt/C in hydrogen oxidation reaction, and also show good performance in overall water splitting.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Qingyi Qian, Fan Wang, Xingkai Zhang, Qiuping Zhao
Summary: Nickel and cobalt films are phosphorized directly in alkaline hypophosphite solution under the action of electric current, resulting in significant changes in morphology and enhanced electrocatalytic performance for the hydrogen evolution reaction. In particular, the phosphorized nickel film shows an overpotential of 57 mV at a current density of 10 mA·cm(-2).
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Cuizhen Yang, Tingyao Wang, Chengcheng Li, Yongtao Li, Dongming Liu, Qingan Zhang
Summary: The direct liquid fuel cell (DLFC) has emerged as a crucial clean and renewable energy source, in response to the challenges of the energy crisis and environmental pollution. Two-dimensional (2D) materials have shown promise as electrocatalysts for DLFC due to their large surface area, unique layered structure, exposed active sites, and chemical stability. This review comprehensively summarizes recent advancements in controlled fabrication of nanoarchitectures based on 2D materials, and explores their application and the correlation between structure and electrochemical performance in DLFC.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Yin Huang, Yaoyao Pan, Xiaoyu Huang, Jialu Zhao, Xiuhua Wang
Summary: The study introduces a hollow NiS@Ni2P nanoframe heterostructure as a substitute catalyst for urea oxidation and water splitting reactions, demonstrating excellent functionality and endurance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Zhenyu Li, Linmin Zhao, Hui Chen, Xiao Liang, Xuan Ai, Zhoubing Xie, Xiaotian Li, Feng Yang, Hongyang Liu, Xiaoxin Zou
Summary: Three crystal phases of Pd-B intermetallics, Pd6B, Pd5B2 and Pd2B, exhibit varying catalytic activities towards electrochemical water splitting and Suzuki coupling reactions, with the activity increasing in the order Pd, Pd6B, Pd5B2, and Pd2B, attributed to surface adsorption properties regulated by Pd(d)-B(s,p) orbital hybridization.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Juan Du, Hao Yang, Chun-Li Wang, Shu-Zhong Zhan
Summary: The new electrocatalyst based on a nickel complex, [Ni(HL)2], shows efficient catalytic activity for both hydrogen generation and oxidation reactions in acetic acid, with the carboxyl group playing a critical role in the catalytic process. Introduction of an electron-withdrawing group can affect the catalytic activity of the electrocatalyst.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Nan Jiang, Shunjie Shi, Yanyan Cui, Bolong Jiang
Summary: Nickel cobalt phosphide nanosheets were synthesized and their structure and hydrogen evolution reaction (HER) activity were studied. The catalyst phosphated at 350 °C showed excellent HER performance, attributed to the formation and better dispersion of active NiCoP crystalline phase on the carbon cloth surface.
CATALYSIS COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Mengting Chen, Zexuan Liu, Xiaowen Zhang, Aiqing Zhong, Weiwei Qin, Weipeng Liu, Yingju Liu
Summary: The study synthesized a self-supporting 3D CoMoP-rGO/CNT catalyst, showing high efficiency for hydrogen evolution reaction in both acidic and basic solutions. The structure of the catalyst facilitates interaction between the electrolyte and active sites, opening a new way for designing earth-rich and low-cost nanomaterials for electrocatalysis.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Ruiyang Miao, Richard G. Compton
Summary: Hydrazine electro-oxidation to form dinitrogen occurs on glassy carbon electrodes over a wide pH range and unbuffered conditions. The process is self-inhibiting due to the release of protons during the oxidation, leading to reduced currents. Experimental and model predictions show good agreement on the behavior of the N2H4/N2H5+ equilibrium.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Physical
Jin-Tao Ren, Xi-Ming Wu, Tong Liu, Lei Chen, Ran Hao, Yue-Jun Song, Yu-Ping Liu, Zhong-Yong Yuan
Summary: Engineering nonprecious materials with active and robust performance is important for hydrogen evolution and oxidation reactions. In this study, a monolithic catalyst of Ni-MoO2 heterojunctions on nickel foam was fabricated, which exhibited extraordinary catalytic activities and stability. By coupling with an active urea oxidation catalyst, a urea splitting electrolyzer with low voltage and stable performance was achieved.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Nanoscience & Nanotechnology
Ziqiang Wang, Yile Wang, Hugang Zhang, Hongjie Yu, Kai Deng, You Xu, Hongjing Wang, Liang Wang
Summary: In this study, Au-Rh2P mesoporous nanotubes (Au-Rh2P MNTs) were used as bifunctional catalysts to achieve efficient hydrazine oxidation reaction and hydrogen evolution reaction under alkaline conditions, resulting in low-energy hydrogen production.
ACS APPLIED NANO MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Rajib Samanta, Ranjit Mishra, Biplab Kumar Manna, Sudip Barman
Summary: Development of active HOR/HER electro-catalyst is crucial for next-generation renewable technologies. In this study, IrO2-modified PdO nanostructures/carbon composite with surface defects was synthesized and demonstrated to have excellent activity and stability in HER/HOR applications. The catalyst showed significantly higher activity than commercial Pt/C in both acidic and basic conditions. This research contributes to the development of Pt-free electrocatalysts for renewable energy technologies.
Article
Chemistry, Multidisciplinary
Xiaowen Yu, Egon Campos dos Santos, Jai White, German Salazar-Alvarez, Lars G. M. Pettersson, Ann Cornell, Mats Johnsson
Summary: A high-performance MoOx/Pt composite electrocatalyst for glycerol electrolysis in alkaline electrolytes is reported, showing excellent performance in both glycerol oxidation reaction (GOR) and hydrogen evolution reaction (HER). The MoOx nanosheets play an important role in the adsorption of glycerol molecules in GOR, the dissociation of water molecules in HER, and the strong electronic interaction with Pt.
Article
Chemistry, Multidisciplinary
Xue Feng Lu, Song Lin Zhang, Wei Lok Sim, Shuyan Gao, Xiong Wen (David) Lou
Summary: The study synthesized porous phosphorized CoNi2S4 yolk-shell spheres (P-CoNi2S4 YSSs) with excellent activity and durability for hydrogen generation and urea oxidation reactions. This work promotes the application of sulfides in electrochemical hydrogen production and provides a feasible approach for urea-rich wastewater treatment.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Rajesh Thomas, Magdalena Gurgul, Bruno Xavier, Sitaramanjaneya Mouli Thalluri, Isilda Amorim, Nan Zhang, Leszek Zaraska, Grzegorz D. Sulka, Lifeng Liu
Summary: Research shows that tin oxyphosphate (Sn/SnP2O7) exhibits better storage performance for lithium and sodium ions compared to Sn/SnOx, attributed to its unique metal/matrix structure.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Junjie Li, Zan Lian, Qiang Li, Zhongchang Wang, Lifeng Liu, Francis Leonard Deepak, Yanping Liu, Bo Li, Junyuan Xu, Zuxin Chen
Summary: In this study, a high-performance nanoporous Ir_xRu_1-xO_2 catalyst with high activity and acid stability was successfully fabricated. The catalyst exhibits excellent electrocatalytic performance under acidic conditions and can sustain long-term oxygen evolution reaction, showing great potential for large-scale practical applications.
Article
Chemistry, Physical
Zhixin Tai, Yajie Liu, Zhipeng Yu, Ziyu Lu, Olekasandr Bondarchuk, Zhijian Peng, Lifeng Liu
Summary: This study reports a novel strategy for the easy preparation of nanostructured sodium (Na) metal anodes with a three-dimensional noncollapsing artificial solid-electrolyte interphase (SEI). The formation of the artificial SEI layer enhances the stability of the Na metal anode, suppresses dendrite growth, and improves the cycling performance of the battery.
Article
Chemistry, Multidisciplinary
Zhipeng Yu, Yifan Li, Vlad Martin-Diaconescu, Laura Simonelli, Jonathan Ruiz Esquius, Isilda Amorim, Ana Araujo, Lijian Meng, Joaquim Luis Faria, Lifeng Liu
Summary: This paper reports the fabrication of a self-supported nickel-iron phosphosulfide nanotube array electrode which exhibits outstanding activity and durability for hydrogen and oxygen evolution reactions. It also shows good catalytic performance for urea oxidation reaction and can efficiently catalyze urea-mediated alkaline-saline water electrolysis.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Zhipeng Yu, Yifan Li, Andre Torres-Pinto, Alec P. LaGrow, Vlad Martin Diaconescu, Laura Simonelli, Maria J. Sampaio, Oleksandr Bondarchuk, Isilda Amorim, Ana Araujo, Adrian M. T. Silva, Claudia G. Silva, Joaquim L. Faria, Lifeng Liu
Summary: The synthesis of single-atom Ir and Ru anchored on mesoporous graphitic carbon nitride (Ir-g-CN and Ru-g-CN) is reported as efficient electrocatalysts and photocatalysts for green hydrogen production. Ru-g-CN exhibits remarkable performance with high turnover frequency and mass activity, as well as excellent catalytic stability. This study contributes to the advancement of green hydrogen production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Electrochemistry
Isilda Amorim, Zhipeng Yu, Fatima Bento, Lifeng Liu
Summary: In this work, a composite consisting of bimetallic cobalt-nickel phosphide (CoNiP) nanoparticles supported on reduced graphene oxide (rGO) was prepared and its electrochemical response was studied. Phosphorization and presence of rGO were found to have an impact on the catalytic performance of CoNiP@rGO. The remarkable electrocatalytic performance of CoNiP@rGO is attributed to the synergetic interaction between different atoms and the modulation of electronic structure.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Yajie Liu, Zhixin Tai, Ido Rozen, Zhipeng Yu, Ziyu Lu, Alec P. LaGrow, Oleksandr Bondarchuk, Qingqing Chen, Gil Goobes, Yi Li, Lifeng Liu
Summary: By regulating the Li+ and Na+ flux using a glass fiber separator impregnated with polytetrafluoroethylene nanospheres, dendrites can be effectively mitigated in lithium and sodium metal batteries, leading to homogeneous deposition of Li and Na during charging. The introduction of negatively charged PTFE-NSs into the separator enhances the local electric field near the anode, boosting the transfer of cations. Li//Li and Na//Na symmetric cells utilizing a PTFE-GF separator exhibit outstanding cycle stability, while Li//LiFePO4 and Na//Na3V2(PO4)(2)F-3 full cells show remarkably improved capacity retention when cycled, in the presence of a PTFE-GF separator.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Environmental
Zhipeng Yu, Chaowei Si, Ferran Sabate, Alec P. LaGrow, Zhixin Tai, Vlad Martin Diaconescu, Laura Simonelli, Lijian Meng, Maria J. Sabater, Bo Li, Lifeng Liu
Summary: In this study, nickel/α-manganese oxide nanorods were reported as catalysts for proton exchange membrane water electrolysis (PEMWE), showing excellent electrocatalytic performance towards hydrazine (N2H4) oxidation reaction (HzOR) in neutral media. This can replace the energy-demanding oxygen evolution reaction (OER) and achieve PEMWE at low voltages. The catalyst also exhibits good corrosion resistance and oxidation stability, providing a foundation for long-term use.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Miao Yang, Hao Tan, Shiyu Ma, Yue Mi, Lifeng Liu, Zongyan Zhao, Hong Li, Dehua Xiong
Summary: Cu-BTC-IPA and Co(NO3)(2)& BULL;6H(2)O precursors were used to synthesize CuCoO2 (CCO) nanocrystals with desired crystal phase and morphology. The effects of Fe doping on the crystal structure and oxygen evolution reaction (OER) performance of CCO were investigated. The results showed that Fe doping improved the OER catalytic performance of CCO by reducing the Gibbs free energy and promoting the formation of intermediates.
Article
Chemistry, Inorganic & Nuclear
Zhi Yang, Hao Tan, Yu Qi, Shiyu Ma, Jilin Bai, Lifeng Liu, Dehua Xiong
Summary: This work successfully synthesized a nanostructured Fe-doped cobalt-based telluride catalyst with excellent oxygen evolution reaction (OER) performance. Fe doping was found to improve OER activity and long-term catalytic stability. This study provides a new approach for the preparation of bimetallic telluride catalysts with enhanced OER performance.
DALTON TRANSACTIONS
(2023)
Article
Multidisciplinary Sciences
Luis Lema, Raquel Oliveira, Isilda Amorim, Ana Paula Bettencourt, Fatima Bento
Summary: The mass production of screen-printed electrochemical devices with integrated electrodes has facilitated the widespread adoption of electroanalytical methods. The use of nanomaterials, such as metal nanoparticles dispersed in polymers and/or carbon nanoparticles, for electrode modification has gained popularity. In this study, a simple and efficient method for modifying carbon screen-printed electrodes with Pt nanoparticles and reduced graphene oxide was described. The modified electrodes showed significantly increased sensitivity for the detection of hydroquinone and bisphenol A. This electrode modification method holds great potential, particularly for personnel in developing countries who may lack access to well-equipped laboratories.
Article
Chemistry, Physical
Hao Tan, Zhipeng Yu, Alec P. LaGrow, Shiyu Ma, Jingwei Wang, Hong Li, Dehua Xiong, Lifeng Liu
Summary: Hydrogen production through direct seawater electrolysis has shown promise, but there are still technical challenges. In this study, researchers developed a selenium-doped nickel telluride nanoarray electrode and demonstrated its excellent catalytic performance in simulated alkaline seawater electrolyte. Furthermore, they discovered that the iodide oxidation reaction can substitute for the oxygen evolution reaction during saline water electrolysis, leading to more efficient hydrogen production. Selenium-doped nickel telluride nanoarrays can enhance the efficiency and energy-saving capability of seawater electrolysis.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Materials Science, Multidisciplinary
Jonathan Ruiz Esquius, Lifeng Liu
Summary: This review emphasizes the importance of using renewable electricity for hydrogen production through water electrolysis and highlights the potential of high entropy materials (HEMs) as catalysts. The article provides a comprehensive summary of HEMs synthesis, physicochemical properties, and their applications as catalysts for water electrolysis reactions. The review concludes with a summary of future directions for HEM-based catalyst development and the need for further research to understand the catalytic mechanisms and deploy HEMs in practical water electrolyzers.
Article
Chemistry, Inorganic & Nuclear
Shiyu Ma, Jilin Bai, Li Sun, Lihong Zhao, Hao Tan, Lifeng Liu, Zhigang Peng, Xiujian Zhao, Dehua Xiong
Summary: This work successfully synthesized CuCoO2 nanosheets and regulated their crystal size by adding PEG and using a solvothermal route. The Ni@CCO2 electrode exhibited outstanding OER performance in 1.0 M KOH electrolyte, with good structural and compositional stability.
DALTON TRANSACTIONS
(2023)
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)