Article
Chemistry, Multidisciplinary
Daying Guo, Zhixin Wan, Yan Li, Bin Xi, Chengxin Wang
Summary: An efficient and durable oxygen evolution reaction (OER) electrocatalyst TiN @ Co5.47N was constructed through plasma nitriding and atomic layer deposition (ALD) CoxN process, showing high electrocatalytic activity and long-term stability. The synergistic electronic interaction between TiN and ALD Co5.47N, as well as the formation of a protective yet active CoTi layered double hydroxides (CoTi LDH) layer, are speculated to be responsible for the superior OER performance.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Wenjin Li, Jinpeng Chen, Yan Zhang, Weiming Gong, Mengmeng Sun, Yanying Wang, Xianxiang Wang, Hanbing Rao, Jianshan Ye, Zhiwei Lu
Summary: Researchers have developed a new type of catalyst using dual metal-organic frameworks, which exhibits superior catalytic activity in the oxygen evolution reaction. The catalyst has a hierarchical and hollow N-doped carbon nanoframes structure, providing a large catalytic active surface area and more active sites. The cooperative effects between alloy and metal telluride, as well as the hollow carbon shell, contribute to promoting the activity of oxygen evolution reaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Physical
Peirong Chen, Jianshan Ye, Hui Wang, Liuzhang Ouyang, Min Zhu
Summary: This review outlines the potential application of hydrogen energy and the performance of transition metal carbides and nitrides in electrocatalytic water splitting. The focus is on different modification methods and remaining challenges in the field.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Nanoscience & Nanotechnology
Amr Radwan, Huihui Jin, Daping He, Shichun Mu
Summary: The significant progress of MOFs-derived electrocatalysts in ORR, OER, and HER applications is mainly attributed to their high-porosity structure, large surface area, and abundant active centers.
NANO-MICRO LETTERS
(2021)
Article
Chemistry, Physical
Da Huo, Fangfang Song, Jianguo Hu, Junhua Yuan, Li Niu, Ai-jun Wang
Summary: The study synthesized mesoporous carbon-coated nickel phosphide nanoparticles with excellent catalytic activity towards oxygen reduction and evolution reactions, showing high stability. This work provides a new avenue for the design of bifunctional catalysts with superior OER/ORR activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Nanoscience & Nanotechnology
Nachiketa Sahu, Jogendra N. Behera
Summary: The development of a simple and effective strategy for designing a highly efficient oxygen evolution electrocatalyst is crucial for improving the efficiency of water electrolysis. This study focuses on the synthesis of Co3S4 nanoparticles derived from a metal-organic framework using a single-step annealing strategy with varying reaction times. The optimized Co3S4-3h product exhibited excellent oxygen evolution reaction (OER) performance and stability under harsh alkaline conditions, attributed to the combination of the Co3S4 phase and N-doped carbon matrix. This research contributes to the search for non-precious electrode materials for efficient OER.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Environmental
Kanglong Lu, Tengteng Gu, Linjie Zhang, Zhicheng Wu, Ruihu Wang, Xiaoju Li
Summary: This study developed Mo-doped Co3O4 nanoparticles-coated carbon nanotubes with superior oxygen evolution reaction (OER) activity and durability, which can efficiently produce hydrogen at low voltages.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Nadeema Ayasha, Aakash Ahuja, Sagar Mitra
Summary: The oxygen reduction and evolution reactions are considered as the bottleneck in many electrochemical devices, and transition metal nitrides have emerged as a potential alternative with their peculiar electronic properties and tunable intrinsic and extrinsic properties.
Review
Chemistry, Multidisciplinary
Kexin Zhang, Ruqiang Zou
Summary: Oxygen evolution reaction (OER) is crucial in electrochemical applications like water splitting and rechargeable metal-air batteries, but its slow kinetics presents a performance bottleneck. Therefore, rational design of OER electrocatalysts based on understanding mechanisms and structure-activity relationship is essential. Study of reaction pathways, intermediates, and descriptors can lead to more efficient design of transition metal-based OER electrocatalysts.
Review
Chemistry, Inorganic & Nuclear
Yingtang Zhou, Reza Abazari, Jing Chen, Muhammad Tahir, Anuj Kumar, Riyadh Ramadhan Ikreedeegh, Ekta Rani, Harishchandra Singh, Alexander M. Kirillov
Summary: MOFs have gained attention as versatile electro- and photoelectrocatalytic platforms, offering advantages such as high surface area, porosity, and structural tunability. Bimetallic MOFs and their composites show improved electrical conductivity and electrochemical activity, making them promising for sustainable energy conversion.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Physical
Shuang Chen, Chao Yu, Zhanfang Cao, Xiaoping Huang, Shuai Wang, Hong Zhong
Summary: The efficiency and stability of oxygen evolution reaction catalysts are improved by synthesizing a composite of NiFeCr-LDH and MoS2, showing excellent electrochemical performance with a potential of only 1.50 V and maintained stability after 500 cycles. High valence metal ions on the surface of the composite material are conducive to the occurrence of the oxygen evolution reaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Tingting Wen, Weidong Liu, Limin Wang, Yaqiong Gong
Summary: Serious environmental pollution and urgent energy demand have led to a focus on developing green and reusable energy, such as hydrogen energy. This study presents the preparation of an OER electrocatalyst FeNi-S@CoSe2/NF with Fe-Ni-S nanoparticles on CoSe2 nanosheets. The addition of Fe-Ni-S greatly improves the OER and water electrolysis performance of the composite, showing excellent overall water electrolysis performance and resistance stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Mariam Batool, Amir Waseem, Muhammad Amtiaz Nadeem, Muhammad Arif Nadeem
Summary: By controlling the molar ratio of metals and the synthetic strategy, the researchers synthesized a phase pure product Fe3Ni7N@C, which served as an efficient and cost-effective electrocatalyst for the oxygen evolution reaction. Fe3Ni7N@C exhibited a low overpotential of 290 mV to achieve a catalytic current density of 10 mA cm-2, with a superior Tafel slope of 40 mV dec-1 compared to noble metal benchmark catalysts. Post-catalytic characterization confirmed the physicochemical integrity of Fe3Ni7N@C for up to 12 hours.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Mariam Batool, Amir Waseem, Muhammad Amtiaz Nadeem, Muhammad Arif Nadeem
Summary: Synthesis of mixed transition metal nitrides leads to the formation of multiple phases. By controlling the molar ratio of metals (Fe:Ni) and using a specific synthetic strategy, a phase pure product (Fe3Ni7N@C) is achieved. Fe3Ni7N@C serves as an efficient and cost-effective electrocatalyst for oxygen evolution reaction (OER), exhibiting a low overpotential and superior Tafel slope compared to noble metal catalysts. The physicochemical integrity of Fe3Ni7N@C is maintained during 12 hours of activity, as shown by post-catalytic characterization.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Electrochemistry
Simon Sprengel, Mandana Amiri, Abolfazl Bezaatpour, Sima Nouhi, Svenja Baues, Gunther Wittstock, Michael Wark
Summary: This study proposes a novel hybrid bimetallic organic framework (H-biMOF) as an electrocatalyst for the oxygen evolution reaction (OER) under alkaline conditions. The H-biMOF exhibits excellent catalytic activity in OER, which is attributed to its abundant active sites and suitable mass transport properties.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
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)