Article
Chemistry, Physical
Kirti, Nayan Nandha, Puyam S. Singh, Divesh N. Srivastava
Summary: This study introduces a novel approach to enhance the OER efficiency on carbon electrodes by utilizing a two-component polymer composite working electrode with varying wettability phases. The unique design discourages passivation of the electrode surface and promotes improved OER activity compared to traditional glassy carbon electrodes. The use of Ru-based catalysts on the tailored electrode further demonstrates the enhanced OER performance.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Albert K. Engstfeld, Jens Klein, Sylvain Brimaud
Summary: The observed inactivity of well-defined Pt modified Ru(0001) single crystal electrodes for the methanol oxidation reaction contradicts theoretical predictions and challenges the concept of bifunctional catalysis. Instead, it suggests that pure Pt defect sites play a more critical role in this reaction than bifunctional defect sites.
Article
Engineering, Environmental
Jian Zhang, Hao Wu, Di Zhang, Lanhe Zhang, Chuntao Zhu
Summary: An efficient and stable ruthenium/agarose/copper foam composite electrode was successfully prepared for the treatment of antibiotic wastewater. The electrode exhibited excellent catalytic effect and high stability. The composite electrode was characterized by SEM, XRD, and XPS, and the results confirmed its properties. The experimental results showed that the electrode achieved a degradation efficiency of 79.12% for doxycycline and demonstrated good reusability and safety.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Chemistry, Physical
Aika Matsumoto, Ze-Xing Cai, Takeshi Fujita
Summary: A versatile synthesis method for pyrochlore oxides containing lanthanides Pr, Nd, Eu, Gd, Tb, and Ho with adjustable lattice constants based on their ionic radii is presented here. By fabricating Pr-based pyrochlore oxides containing different ratios of Ru and Ir, it is found that the oxygen evolution reaction (OER) activity of these catalysts can be enhanced when the content of Ir and Ru is the same. Therefore, the co-substitution of Ir and Ru in pyrochlore oxides is a novel synthesis strategy with potential for the development of other pyrochlore oxides with different architectures and compositions for electrocatalysis applications.
Article
Chemistry, Multidisciplinary
Chong Wang, Kaixin Liu, Yangxin Jin, Shuquan Huang, Jason Chun-Ho Lam
Summary: This study reports the efficient electrocatalytic oxidative decarboxylation of biomass-derived volatile carboxylic acids using a new amorphous RuO2 catalyst. The yield of decane was 5.4 times higher than that of commercial RuO2. This work provides a new design idea for efficient electrocatalysts and a potential candidate for Kolbe electrolysis.
Article
Multidisciplinary Sciences
Graham Smith, Edmund J. F. Dickinson
Summary: The authors present a metrology-led perspective on the best practices for electrochemical characterization of materials used in electrochemical energy technologies. These experiments are highly sensitive and the quality of their results is often uncertain and difficult to reproduce quantitatively.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Multidisciplinary
Chun -Hsiang Hsu, Kuei-Hsiang Tseng, Ciao -Yang Hsu, Dong-Hwang Chen
Summary: With the development of wearable and portable electronics, there is increasing attention on flexible transparent photothermal supercapacitors that utilize sunlight to improve performance. This study developed a flexible transparent photothermal supercapacitor using RuO2-decorated CsxWO3 nanorods as the negative electrode material. The resulting electrodes showed good pseudocapacitive performance and high transparency, flexibility, and stability. The capacitive performance was enhanced by simulated sunlight illumination due to the reduction in electrolyte and charge-transfer resistances. The strategy of RuO2 decoration successfully improved the capacitance of CsxWO3 nanorods and showed great potential for transparent photothermal supercapacitors.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Yiming Zhu, Jiaheng Peng, Xiaorong Zhu, Lingzheng Bu, Qi Shao, Chih-Wen Pao, Zhiwei Hu, Yafei Li, Jianbo Wu, Xiaoqing Huang
Summary: This study successfully developed a large-scale method to produce ruthenium-doped platinum-cobalt octahedra, which exhibited higher ORR activity, stability, and MEA stability compared to traditional Pt3Co/C and Pt/C. Furthermore, it was found that doped ruthenium can enhance the chemical stability of platinum, accelerate the breach and desorption of oxygen intermediates, making it more active and durable for the ORR. The findings shed light on exploring a large-scale strategy for producing advanced Pt-based nanocatalysts with significant advantages for future practical fuel cell applications.
Article
Multidisciplinary Sciences
Azza Shokry, Marwa Karim, Marwa Khalil, Shaker Ebrahim, Jehan El Nady
Summary: The study aimed to fabricate supercapacitor electrodes based on P3HT/SWCNTs nanocomposites with higher specific capacitance than individual components. The superior electrochemical performance of the nanocomposite was attributed to the formation of a microporous structure that facilitates ion diffusion and electrolyte penetration.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Natalia Festinger, Aneta Kisielewska, Barbara Burnat, Katarzyna Ranoszek-Soliwoda, Jaroslaw Grobelny, Kamila Koszelska, Dariusz Guziejewski, Sylwia Smarzewska
Summary: The present study investigates the impact of two different oxygen content graphene oxides on the electrochemical and structural properties of noble metal disk electrodes. The chemistry and structural properties of the modifier layers were analyzed using various techniques, and comparative electrochemical studies were conducted using cyclic voltammetry.
Article
Chemistry, Analytical
Ruilin Liu, Xiaoping Wei, Jianping Li
Summary: A new amperometric method incorporating synergistic electrocatalysis and photoelectrocatalysis was proposed for the detection of trace glucose concentrations, resulting in a 9-fold increase in sensitivity. The method has a wide detection range for glucose and can accurately determine trace amounts of glucose in saliva and sweat.
MICROCHEMICAL JOURNAL
(2021)
Article
Materials Science, Ceramics
Deshuang Hu, Ruyue Wang, Peng Du, Gang Li, Yonggang Wang, Dongyu Fan, Xuchao Pan
Summary: This study presents the preparation of coral-like Ru-doped cobalt oxide nanofibers by electrospinning and subsequent heat treatment, which optimizes the catalytic activity. The one-dimensional nanomaterials prepared by electrospinning exhibit a large specific surface area and rich porosity, significantly enhancing the catalytic activity.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Bilquis Ali Al-Qodami, Hafsa H. Alalawy, Islam M. Al-Akraa, Sayed Youssef Sayed, Nageh K. Allam, Ahmad M. Mohammad
Summary: A novel electrochemical engineering method utilizing intersected ferric oxyhydroxide nanotubes for synthesizing spherical Pt nanoparticles showed remarkable catalytic performance in direct formic acid fuel cells, effectively eliminating the issue of permanent CO poisoning and hinting at quick industrialization potential for the technology.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Allan J. M. Araujo, Francisco J. A. Loureiro, Laura I. Holz, Vanessa C. D. Graca, Joao P. F. Grilo, Daniel A. Macedo, Carlos A. Paskocimas, Duncan P. Fagg
Summary: This article analyzes the electrode performance of misfit-layered calcium cobaltite as a cathode and anode for solid oxide fuel cell and solid oxide electrolysis cell, respectively, using electrochemical impedance spectroscopy. The addition of Ce0.8Gd0.2O2-delta as a composite electrode phase significantly improves the electrochemical processes and reduces the polarization resistance. Short-term stability testing demonstrates that the composite material shows stable current density and no observable microstructure delamination at 700°C.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Nathaniel Hurley, Luyao Li, Christopher Koenigsmann, Stanislaus S. Wong
Summary: Researchers synthesized a series of 3D hierarchical metal oxide spherical motifs and explored their performance as catalysts for the methanol oxidation reaction. They found that the MOR activity of perovskite materials increases with decreasing ionic radius of the A-site cation, with 3D spherical motifs exhibiting enhanced catalytic activity compared to ultra-small or cubic control samples. Additionally, the Pt/CTO sample showed improved mass and specific activity values, as well as greater stability and durability compared to commercial TiO2 nanoparticle standards and precursor TiO2 templates.
Article
Electrochemistry
M. Musiani, S. Cattarin, S. Cimino, N. Comisso, L. Mattarozzi, L. Vazquez-Gomez, E. Verlato
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2015)
Article
Chemistry, Analytical
Enrico Verlato, Sandro Cattarin, Nicola Comisso, Luca Mattarozzi, Marco Musiani, Lourdes Vazquez-Gomez
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2015)
Article
Electrochemistry
Nicola Comisso, Sandro Cattarin, Paolo Guerriero, Luca Mattarozzi, Marco Musiani, Lourdes Vazquez-Gomez, Enrico Verlato
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2016)
Article
Electrochemistry
Luca Mattarozzi, Sandro Cattarin, Nicola Comisso, Rosalba Gerbasi, Paolo Guerriero, Marco Musiani, Lourdes Vazquez-Gomez, Enrico Verlato
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2015)
Article
Engineering, Environmental
Stefano Cimino, Arianna Gambirasi, Luciana Lisi, Gabriella Mancino, Marco Musiani, Lourdes Vazquez-Gomez, Enrico Verlato
CHEMICAL ENGINEERING JOURNAL
(2016)
Article
Engineering, Environmental
S. Cimino, R. Gerbasi, L. Lisi, G. Mancino, M. Musiani, L. Vazquez-Gomez, E. Verlato
CHEMICAL ENGINEERING JOURNAL
(2013)
Article
Green & Sustainable Science & Technology
Lourdes Vazquez-Gomez, Achille de Battisti, Sergio Ferro, Monica Cerro, Silvia Reyna, Carlos A. Martinez-Huitle, Marco A. Quiroz
CLEAN-SOIL AIR WATER
(2012)
Article
Electrochemistry
Luca Mattarozzi, Sandro Cattarin, Nicola Comisso, Paolo Guerriero, Marco Musiani, Lourdes Vazquez-Gomez, Enrico Verlato
ELECTROCHIMICA ACTA
(2013)
Article
Electrochemistry
Luca Mattarozzi, Sandro Cattarin, Nicola Comisso, Arianna Gambirasi, Paolo Guerriero, Marco Musiani, Lourdes Vazquez-Gomez, Enrico Verlato
ELECTROCHIMICA ACTA
(2014)
Article
Chemistry, Physical
S. Cimino, L. Lisi, G. Mancino, M. Musiani, L. Vazquez-Gomez, E. Verlato
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2012)
Article
Chemistry, Physical
Stefania Fiameni, Isaac Herraiz-Cardona, Marco Musiani, Valentin Perez-Herranz, Lourdes Vazquez-Gomez, Enrico Verlato
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2012)
Article
Chemistry, Physical
E. Verlato, S. Barison, S. Cimino, F. Dergal, L. Lisi, G. Mancino, M. Musiani, L. Vazquez-Gomez
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2014)
Article
Chemistry, Physical
Enrico Verlato, Sandro Cattarin, Nicola Comisso, Arianna Gambirasi, Marco Musiani, Lourdes Vazquez-Gomez
Article
Chemistry, Physical
Enrico Verlato, Sandro Cattarin, Nicola Comisso, Luca Mattarozzi, Marco Musiani, Lourdes Vazquez-Gomez
Article
Electrochemistry
Luca Mattarozzi, Sandro Cattarin, Nicola Comisso, Rosalba Gerbasi, Paolo Guerriero, Marco Musiani, Lourdes Vazquez-Gomez, Enrico Verlato
ECS ELECTROCHEMISTRY LETTERS
(2013)
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)