Article
Materials Science, Multidisciplinary
Dang Long Quan, Phuoc Huu Le
Summary: PtRu nanoparticles decorated on carbon-based supports, especially on carbon nanotubes composite support, exhibit high methanol oxidation activity and good carbonaceous species tolerance. The composition of C-MWCNTs greatly affects the performance of the electrocatalyst, with PtRu/C70MWCNTs30 identified as the optimal catalyst with the highest current density and low electron transfer resistance. The findings suggest that the C-MWCNTs composite support outperforms individual carbon or MWCNTs supports in achieving enhanced activity and tolerance simultaneously.
Article
Electrochemistry
Ahmed H. Ali, Peter G. Pickup
Summary: This study investigates the effect of Pt coverage on the electrochemical oxidation of ethanol and methanol, and shows that adding a Pt shell improves catalytic activity while increasing limiting currents and shifting product distribution towards CO2, enhancing hydrogen production efficiency.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Xiang-Jie Guo, Qi Zhang, Ya-Nan Li, Yang Chen, Lu Yang, Hai-Yan He, Xing-Tao Xu, Hua-Jie Huang
Summary: Reasonable design and controllable synthesis of non-Pt catalysts with high methanol oxidation activity are important for large-scale commercial applications of direct methanol fuel cells (DMFCs). In this study, nanosized Rh grown on single-walled carbon nanohorns (Rh/SWCNH) have been successfully fabricated as anode catalysts for DMFCs. The resulting Rh/SWCNH catalysts exhibit exceptional electrocatalytic properties and hold great potential as alternatives for commercial Pt/carbon black and Pd/carbon black catalysts.
Article
Chemistry, Multidisciplinary
Wei Qiao, Xudong Yang, Meng Li, Ligang Feng
Summary: In this study, hollow Pd/Te nanorods were fabricated and evaluated for methanol oxidation, showing high catalytic efficiency in alkaline electrolyte compared to commercial Pd/C catalysts. The Pd/Te hybrid structure exhibited strong electronic effects and facile oxophilic properties, leading to its high catalytic performance for methanol oxidation. Additionally, the Pd/Te catalyst demonstrated high catalytic stability, strong anti-CO poisoning ability, and faster catalytic kinetics, which can be attributed to the electron-rich state of Pd and high active site exposure.
Review
Chemistry, Physical
Afdhal Yuda, Anand Kumar
Summary: This review summarizes the performance of electrocatalysts based on two-dimensional graphitic carbon nitride in methanol oxidation reactions. It describes the structure, synthesis methods, and post-synthesis treatments of g-C3N4, and evaluates their performance. Finally, the review discusses the challenges and possible solutions for the future development of DMFC.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Xiang Li, Xianfeng Du, Shan Huang, Lilong Xiong
Summary: The study introduced NCNTs/Pt electrodes as cathodes in aluminum anodization, showing promising results in reducing energy consumption and improving efficiency. This novel approach of utilizing carbon-based noble metals as efficient catalysts offers a new pathway for energy conservation in the process.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Yixin Hao, Deshuang Yu, Shangqian Zhu, Chun-Han Kuo, Yu-Ming Chang, Luqi Wang, Han-Yi Chen, Minhua Shao, Shengjie Peng
Summary: An efficient catalyst comprised of highly dispersed FeNi oxide heterojunctions anchored on nickel foam is synthesized using an ultrafast solution combustion strategy. This catalyst exhibits excellent stability and activity at large current densities for anodic organic upgrading, and achieves high faradaic efficiency in methanol electrooxidation.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Susmita Singh, Moupiya Ghosh, Mainak Bose, Sinthia Saha, Anushna Dutta
Summary: The composition and atomic structure of nanoalloy electrocatalysts are crucial for the ethanol oxidation reaction. This study explores the relationship between the composition, structure, and catalytic activity of PtRu electrocatalysts and proposes a new perspective for the development of C/PtRu electrocatalysts for direct ethanol fuel cells.
Article
Chemistry, Physical
Qijun Wang, Ya-Wei Zhou, Zhao Jin, Chunguang Chen, Hong Li, Wen-Bin Cai
Summary: This study reports a facile aqueous phase approach using DMAB to synthesize PtRu/C nanoalloy, with significantly improved structural parameters and enhanced electrocatalytic performance. The PtRu/C(DMAB) shows the highest methanol electro-oxidation performance among all tested samples, making it a promising alternative for efficient anode electrocatalysts in DMFCs.
Review
Chemistry, Multidisciplinary
Jianmei Wang, Bingxing Zhang, Wei Guo, Lei Wang, Jian Chen, Hongge Pan, Wenping Sun
Summary: The study of direct methanol fuel cells (DMFCs) has been ongoing for around 70 years, but commercialization is still a distant goal. The methanol oxidation reaction (MOR) is the bottleneck reaction that limits the overall performance of DMFCs. This review summarizes the controversies and progress in electrocatalytic mechanisms, performance evaluations, and design science for MOR electrocatalysts. It also provides an overview of the recent development of emerging MOR electrocatalysts, focusing on the innovation of alloy, core-shell structure, heterostructure, and single-atom catalysts. Perspectives on future research directions are also discussed.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Physical
Nabi Ullah, Sami Ullah, Saraf Khan, Dariusz Guziejewski, Valentin Mirceski
Summary: Energy crisis is a significant issue in today's society and methanol electro-oxidation is a promising energy source. Recent studies have shown that Ni-based MOFs are favored as electrocatalytic materials for methanol oxidation. The synergy of Ni and Fe also exhibits excellent performance. Additionally, reducing the size of the materials and introducing carbon-based support can further enhance catalytic performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Basanta Roul, Demudu Babu Gorle, Gokul Raj, Kanhai Kumar, Malti Kumari, K. K. Nanda, S. B. Krupanidhi
Summary: To alleviate the world's current energy demand, alternative energy sources are needed, with fuel cells playing a significant role. This study synthesized a highly dispersed and efficient carbon-supported platinum-based cathode catalyst (Pt/C) with excellent oxygen reduction reaction (ORR) for direct methanol fuel cell (DMFC) applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Xiangjie Guo, Qi Wang, Haiyan He, Huajie Huang
Summary: In this study, a controllable and scalable method was proposed to construct ultrafine Pt nanocrystals supported by boron and nitrogen codoped carbon nanohorns (Pt/BN-CNH) as electrocatalysts for methanol oxidation reaction. The resulting Pt/BN-CNH catalysts exhibited high catalytic activity, reliable long-term stability, and strong antipoisoning capacity, surpassing conventional catalysts and showing great potential for next-generation DMFC devices.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Environmental
Wei Meng, Haiyan He, Lu Yang, Quanguo Jiang, Brian Yuliarto, Yusuke Yamauchi, Xingtao Xu, Huajie Huang
Summary: Researchers have successfully synthesized a heterojunction catalyst of Pt nanowires and MXene nanosheets with high methanol oxidation performance and long-term durability. The catalyst possesses structural advantages such as large accessible surface area, stable interconnected Pt networks, and numerous grain boundary sites. It exhibits higher activity and competitiveness compared to traditional Pt nanoparticle/carbon catalysts.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Bihao Hu, Yuxin Xie, Ying Yang, Jiazhi Meng, Jinliang Cai, Changguo Chen, Danmei Yu, Xiaoyuan Zhou
Summary: Researchers successfully fabricated a novel tensile lattice strained Ni@NiCu catalyst with a popcorn-like morphology, showing excellent catalytic activity, selectivity, and stability in borohydride electrooxidation. Moreover, using a Ni@NiCu anode, a direct borohydride fuel cell (DBFC) achieved a power density of 433 mW cm(-2) and an open circuit voltage of 1.94 V, surpassing the performance of DBFCs with other reported anode catalysts. This improvement can be attributed to the introduction of Cu generating tensile lattice strain, leading to an increase in the d-band center of Ni metal and promoting the rate-determining step of B-H decoupling in borohydride oxidation.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Yuan-Hang Qin, Yunfeng Li, Thomas Lam, Yangchuan Xing
JOURNAL OF POWER SOURCES
(2015)
Article
Electrochemistry
Hao Liu, Yangchuan Xing
ELECTROCHEMISTRY COMMUNICATIONS
(2011)
Article
Electrochemistry
Yunfeng Li, Kan Huang, Yangchuan Xing
ELECTROCHIMICA ACTA
(2012)
Article
Electrochemistry
Kan Huang, Yunfeng Li, Yangchuan Xing
ELECTROCHIMICA ACTA
(2013)
Article
Energy & Fuels
Liang Li, Yangchuan Xing
Article
Chemistry, Multidisciplinary
Yunfeng Li, Zhongping Huang, Kan Huang, David Carnahan, Yangchuan Xing
ENERGY & ENVIRONMENTAL SCIENCE
(2013)
Article
Chemistry, Physical
Kan Huang, Kotaro Sasaki, Radoslav R. Adzic, Yangchuan Xing
JOURNAL OF MATERIALS CHEMISTRY
(2012)
Article
Materials Science, Multidisciplinary
Kan Huang, Yunfeng Li, Yangchuan Xing
JOURNAL OF MATERIALS RESEARCH
(2013)
Article
Chemistry, Physical
Yangchuan Xing, Yun Cai, Miomir B. Vukmirovic, Wei-Ping Zhou, Hiroko Karan, Jia X. Wang, Radoslav R. Adzic
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2010)
Article
Chemistry, Physical
Liang Li, Yangchuan Xing
JOURNAL OF POWER SOURCES
(2008)
Article
Nanoscience & Nanotechnology
Guoqiang Ren, Yangchuan Xing
Article
Chemistry, Multidisciplinary
Kan Huang, Yunfeng Li, Litao Yan, Yangchuan Xing
Article
Electrochemistry
Litao Yan, Kan Huang, Yougui Chen, Yangchuan Xing
ECS ELECTROCHEMISTRY LETTERS
(2014)
Article
Chemistry, Physical
Huda Al Qader, Ahmed M. Jasim, Hani Salim, Yangchuan Xing, David Stalla
Summary: This study evaluated the effect of carbon nanofibers coated by aluminum oxide as a reinforcement on the properties of cement mortars. It was found that the addition of aluminum oxide/carbon nanofiber led to improved compressive strength, reduced strength degradation, and decreased drying shrinkage.
Article
Electrochemistry
Khaleel Hamad, Yangchuan Xing
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)