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)
Review
Energy & Fuels
Rakan M. Altarawneh
Summary: DEFCs, as an attractive alternative to conventional combustion technologies, offer high theoretical efficiency and can be powered by safe, plentiful, and renewable ethanol resources. However, challenges such as low practical efficiencies and byproduct production need to be addressed through the development of new anode catalysts and evaluation of their electrochemical performance and emissions. Insights from experimental techniques and computational studies are essential in enhancing the performance and efficiency of DEFCs.
Article
Chemistry, Multidisciplinary
Qiucheng Xu, Sihang Liu, Francesco Longhin, Georg Kastlunger, Ib Chorkendorff, Brian Seger
Summary: The membrane-electrode assembly (MEA) approach is the most promising technique for high-rate CO2/CO electrolysis. However, there are challenges related to the crossover of ions and liquid products and the concomitant anodic oxidation reactions (AORs). This perspective investigates the impacts of anodic oxidation on performance evaluation by combining experimental and theoretical analyses and provides suggestions for rigorous performance evaluations in MEA-based setups.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mohammad Taghi Tourchi Moghadam, Majid Seifi, Mohammad Bagher Askari, Sadegh Azizi
Summary: In this study, the addition of Fe3O4-decorated multi-wall carbon nanotubes to zinc oxide structure improved the quantity of active oxidation sites and the conductivity of the catalyst, resulting in enhanced electro-catalytic ability and stability in methanol and ethanol oxidation processes. This introduces promising potential for ZnO-based materials as alcohol oxidation catalysts.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Energy & Fuels
Dahiyah Mohd Fadzillah, Siti Kartom Kamarudin, Azran Mohd Zainoodin
Summary: This study proposes a pump-less DEFC system to address the limitations of existing DEFC systems and achieve better power output and mobility. Through electrochemical experiments and flow field simulations, the results show that pump-less DEFCs have comparable power output to active-feed DEFCs, with lower fuel discharge velocity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Milica P. Marceta Kaninski, Zoran V. Saponjic, Mihajlo D. Mudrinic, Dubravka S. Milovanovic, Boris M. Rajcic, Aleksandra M. Radulovic, Vladimir M. Nikolic
Summary: The article discusses promising catalysts for direct alcohol fuel cells, focusing on the development of Pt and Pd catalysts deposited on a novel Ru doped SnO2 support. The interactive nature of the support enhances the kinetics of ethanol oxidation reaction, showing great potential in improving the performance and durability of DAFC.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Shuqian Xie, Jinbing Shu, Hui Huang, Junhong Li, Ruirui Yue, Jingkun Xu
Summary: Modulating the surface and interface electronic structure of noble metals is a hot topic in electrocatalysis to improve electrocatalytic performance. In this study, a heterogeneous catalyst (PdCu/N-Ti3C2Tx) based on well-dispersed PdCu nanoalloy and N-doped Ti3C2Tx MXene support was prepared. The optimized composition of Pd1Cu1/N-Ti3C2Tx showed higher mass activity, specific activity, and intrinsic activity for ethanol oxidation reaction compared to other catalysts. The improved performance can be attributed to the modified surface electronic features of Pd and the metal-carrier effect between PdCu nanoalloy and N-Ti3C2Tx heterogeneous interface.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Ajay Munde, Balaji B. Mulik, Parag P. Chavan, Vijay S. Sapner, Shankar S. Narwade, Shivsharan M. Mali, Bhaskar R. Sathe
Summary: The study presents a surface modification approach for the fabrication of noble metal-free cobalt-bismuth bimetallic electrocatalysts for enhanced ethanol oxidation reaction. The synthesized Co-Bi@rGO electrocatalysts exhibit high activity, cost-effectiveness, efficiency, and durability, showing superior performance compared to individual counterparts. The synergistic interactions of rGO, Co, and Bi in the electrocatalysts contribute to their enhanced performance in the ethanol oxidation reaction.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Review
Green & Sustainable Science & Technology
Huimin Yu, Jun Wan, Michael Goodsite, Huanyu Jin
Summary: By directly electrolyzing seawater using marine energy, green hydrogen can be produced without freshwater and fossil fuels. However, the complexity of seawater composition presents challenges for direct seawater electrolysis, including electrode corrosion and failure. This review analyzes the barriers and future directions for optimizing direct seawater splitting. It emphasizes the importance of selective catalysts, stable electrolyzer devices, and low-cost electrolyzers for improving the feasibility of direct seawater splitting.
Review
Chemistry, Physical
Dongming Zhang, Tong Sun, Dianxue Cao, Youzhi Liu, Weizhou Jiao, Guiling Wang
Summary: This paper provides an updated review of the effects of electrode design and the modulation of the catalytic environment on the anode of DBFCs. Breakthroughs in catalytic activity and mitigation of side reactions are critical for solving the current challenges in borohydride oxidation catalysis.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Pedro Piqueras, Maria Jose Ruiz, Jose Martin Herreros, Athanasios Tsolakis
Summary: This study investigates the impact of alternative fuels on the abatement of pollutants using oxidation catalysts. Findings suggest that engine-out emissions play a crucial role in the conversion efficiency of pollutants, highlighting the importance of low engine-out emissions and low light alkanes content in total HC to reduce the light-off temperature.
Article
Chemistry, Multidisciplinary
Shao-Wen Xu, Jianyi Li, Nan Zhang, Wei Shen, Yao Zheng, Pinxian Xi
Summary: Hydrogen production through electrocatalytic seawater splitting offers a promising solution for sustainable energy generation. However, the complex composition of seawater presents challenges in terms of electrode side reactions and corrosion. This review discusses the basic principles of seawater electrolysis and highlights recent progress in designing efficient systems, including catalyst design, electrolyser assembly, membrane regulation, and electrolyte engineering. The challenges and future opportunities for large-scale hydrogen production from seawater splitting are also emphasized.
CHEMICAL COMMUNICATIONS
(2023)
Article
Green & Sustainable Science & Technology
Susanne Koch, Lukas Metzler, Sophia K. Kilian, Philipp A. Heizmann, Florian Lombeck, Matthias Breitwieser, Severin Vierrath
Summary: This study proposes a novel direct-coating approach for membrane-electrode assembly (MEA) fabrication, which effectively reduces membrane swelling and improves the efficiency and mass transport performance of anion-exchange membrane water electrolysis cells. The self-casted catalyst-coated membrane with low thickness exhibits promising stability and degradation rate.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Chemistry, Physical
Martinus Dewa, Mohamed A. Elharati, A. Mohammed Hussain, Yohei Miura, Dong Song, Yosuke Fukuyama, Yoshihisa Furuya, Nilesh Dale, Xianghui Zhang, Oscar G. Marin-Flores, Di Wu, M. Grant Norton, Su Ha
Summary: In this study, a Rhodium-Ceria-Zirconia (Rh/CZ) internal reforming catalyst layer was introduced to a high-performance metal-supported solid oxide fuel cell (MS-SOFC). The catalyst layer improved the performance and stability of the ethanol fuel cell by enhancing internal reforming activity.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Houg-Yuan Pei, Chen-Han Lin, Wei Lin, Chiun-Jye Yuan
Summary: A highly efficient carbon-supported Pd catalyst (Pd/pCFP) for direct ethanol fuel cells was developed by electrodepositing nanostructured Pd on oxygen plasma-treated carbon fiber paper. The prepared electrode exhibited high electrocatalytic activity towards ethanol oxidation, high tolerance to poisoning species, and long-term stability, suggesting its potential for the development of highly efficient direct alcohol fuel cells.
Article
Electrochemistry
Pasha Majidi, Rakan M. Altarawneh, Nicholas D. W. Ryan, Peter G. Pickup
ELECTROCHIMICA ACTA
(2016)
Article
Chemistry, Physical
Rakan M. Altarawneh, Pasha Majidi, Peter G. Pickup
JOURNAL OF POWER SOURCES
(2017)
Article
Electrochemistry
Rakan M. Altarawneh, Peter G. Pickup
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2017)
Article
Electrochemistry
Rakan M. Altarawneh, Peter G. Pickup
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2018)
Article
Chemistry, Physical
Rakan M. Altarawneh, Tobias M. Brueckner, Binyu Chen, Peter G. Pickup
JOURNAL OF POWER SOURCES
(2018)
Article
Electrochemistry
Binyu Chen, Tobias M. Brueckner, Rakan M. Altarawneh, Peter G. Pickup
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2018)
Article
Electrochemistry
Rakan M. Altarawneh
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2019)
Article
Chemistry, Analytical
Rakan M. Altarawneh
Summary: The study determined concentrations of selected toxic metals (Pb, Ni, Cd, and Cr) in widely consumed fruits and vegetables from Al-Karak city, Jordan. Results showed significant variations in metal contents among the samples, with potatoes having the highest levels of Pb and Cd, while apples had the lowest. Ni and Cr were most abundant in green peppers and bananas, respectively, with oranges showing the highest bioaccumulation. Concentrations of Pb, Cd, and Cr exceeded recommended limits, highlighting potential health risks and the need for future surveys to reduce toxic metal levels in these commodities.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Electrochemistry
Hui Hang, Rakan M. Altarawneh, Tobias M. Brueckner, Peter G. Pickup
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)