Article
Chemistry, Physical
Mingyue Chen, Wenhui Li, Yu Lu, Pengcheng Qi, Hao Wu, Gaofu Liu, Yue Zhao, Yiwen Tang
Summary: In this study, an efficient corrosion strategy was proposed to prepare defect-rich Ni(Fe)OOH/Ni(Fe)S-x nanosheet arrays on a NiFe foam within 10 minutes, exhibiting remarkable catalytic activity. This work offers a new perspective on designing large-scale and highly active oxygen evolution catalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Nouraiz Mushtaq, Zhitao Wang, Hassina Tabassum, Muhammad Tahir, Zhanli Han, Youqi Zhu, Waqar Younas, Xilan Ma, Chuanbao Cao
Summary: Mesoporous Fe3S4 nanosheets with large surface area and rich exposed surface atoms were successfully synthesized using microwave-assisted synthetic technique. Applied as electrodes in full water electrolysis, the Fe3S4 nanosheets exhibited small overpotential and excellent stability. This study may provide advanced catalysts for commercial water splitting applications.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Guangyu Ma, Xiaoqiang Du, Xiaoshuang Zhang
Summary: The study successfully synthesized a bifunctional Fe-Co-S/NF electrocatalyst with high catalytic performance, which can be used for hydrogen evolution and oxygen evolution reactions, achieving high current density drive and providing prospects for water electrolysis hydrogen production.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Lin Zhang, Chengjie Lu, Fei Ye, Ruilvjing Pang, Yang Liu, Zeyi Wu, Zongping Shao, Zhengming Sun, Linfeng Hu
Summary: This study presents a new approach to develop high-performance oxygen evolution electrocatalysts through vacancy engineering assisted by selenic acid etching. The Co0.85Se1-x@C nanocages prepared in this study exhibit high oxygen electrocatalytic activity at low overpotential, and require low cell voltage for full water-splitting electrolysis in alkaline media.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Anchu Ashok, Anand Kumar, Afdhal Yuda, Abdullah Al Ashraf
Summary: This study reports the preparation of a highly active catalyst, N,S-Co@CNT, which is derived from hierarchical Co9S8 nanowires trapped in Ndoped carbon nanotubes. Compared to traditional Co@CNT, N,S-Co@CNT exhibits higher current density and lower onset potential, attributed to its unique hierarchical structure and surface properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Jong-Hwan Park, Jae Chul Ro, Su-Jeong Suh
Summary: FeCo nanoparticles with different surface-layer compositions were synthesized using the polyol method. The FeCo nanoparticles consist of an Fe-rich FeCo alloy core and a Co-rich FeCo oxide layer. Fe59Co41 (S4) exhibits the optimal intrinsic catalytic activity for an oxygen evolution reaction.
APPLIED SURFACE SCIENCE
(2022)
Article
Energy & Fuels
Behnam Nourmohammadi Khiarak, Majdoddin Mojaddami, Zahra Zamani Faradonbeh, Angelina Olegovna Zekiy, Abdolreza Simchi
Summary: The development of active, durable, cost-effective, and stable electrocatalysts is urgently needed in various industries, including renewable energy systems. This article presents an electrochemical analysis of a nanostructured electrocatalyst based on a Cu-Ni-Fe-Cr-Co alloy with enhanced activity for both oxygen and hydrogen reactions in alkaline medium.
Article
Physics, Applied
Xueying Yang, Xiuhang Wang, Tingwen Zhao, Yi Ma, Zenglin Wang, Chuan Zhao
Summary: An ultrathin VOx-doped NiFe alloy layer was electrodeposited on NiCoP supported by TM to achieve a highly active and low-cost bifunctional electrocatalyst for overall water splitting. The VOx@NiFe/NiCoP/TM electrode exhibits superior electrocatalytic activity for water electrolysis and shows robustness and outstanding durability in alkaline medium. Serving as both anode and cathode electrocatalysts in a two-electrode water electrolytic cell, the bifunctional electrodes only require low potentials with excellent durability.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Hao Yang Lin, Genning Yang, Peng Fei Liu
Summary: This study investigates the structural changes during the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) processes using metallic Ni3Se2 films as model catalysts. The findings provide insights into the design of active structures for electrocatalysts.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
W. Ruan, C. Yuan, F. Teng, H. Liao, A. O. Ibhadon
Summary: This study presents an innovative strategy to overcome the sluggishness of the oxygen evolution reaction (OER) and successfully prepares ultrathin birnessite@nickel foam nanosheet array (KMO@NF) with oxygen vacancies (VO) using an in-situ growth method. The KMO@NF material exhibits high activity for water splitting and is further improved for the hydrogen evolution reaction (HER) by replacing OER with glycerol oxidation reaction (GOR) and urea oxidation reaction (UOR). The results show increased anodic current densities and lower cell voltages, indicating efficient hydrogen production and energy savings.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Energy & Fuels
Kamakshaiah Charyulu Devarayapalli, S. V. Prabhakar Vattikuti, Jaewon Lee, Taewan Kim, Kiyoung Lee
Summary: In this study, a nanostructure composed of zeolitic imidazolate framework and vanadium-doped nickel hydroxide was proposed as a highly efficient and stable electrocatalyst for water splitting. The resulting nanostructure exhibited enhanced electrocatalytic activity, surface area, and pore volume, and demonstrated excellent performance in alkaline water electrolysis.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Xue Li, Komal Patil, Pravin Babar, Ashutosh Agarwal, Xing Chen, Dong Myeong Kim, Jin Hyeok Kim, Yung Tae Yoo
Summary: In this study, CoMnFeO4 with a unique nanowire-nanosheet coexisting structure was successfully synthesized by a hydrothermal method, followed by calcination. The as-prepared CoMnFeO4 exhibited outstanding oxygen evolution reaction performance in an alkaline medium, which can be attributed to its porous structure, excellent structural stability, and synergistic effect of multications.
Article
Multidisciplinary Sciences
Bing Wang, Weigui Liu, Yecheng Leng, Xiwen Yu, Cheng Wang, Lianghe Hu, Xi Zhu, Congping Wu, Yingfang Yao, Zhigang Zou
Summary: Developing active and cost-effective bifunctional electrocatalysts for overall water splitting is challenging but necessary for renewable energy technologies. In this study, a high-entropy alloy of PtIrCuNiCr was reported as a bifunctional electrocatalyst for overall water splitting, showing low overpotential and superior electrocatalytic activity. The strain effect of the high-entropy alloy on electrocatalysis can be well engineered by adjusting the catalyst radius or configurational entropy. This work provides a systematic strain regulation strategy for designing high-performance high-entropy alloy catalysts for overall water splitting.
Article
Chemistry, Physical
Yanhong Wang, Nannan Chen, Xiaoqiang Du, Xinghua Han, Xiaoshuang Zhang
Summary: Water electrolysis is an environmentally friendly and promising hydrogen generation technology, with the development of efficient and economical electrocatalysts playing a key role in enhancing its performance. In this study, self-supporting M-NiCo2S4/Ni3S2 (M=Mn, Fe, Cu, Zn) nanostructures were synthesized on a nickel foam scaffold through doping engineering, with Fe doping significantly improving the catalyst's activity. The Fe-NiCo2S4/Ni3S2 electrode exhibited excellent activity for oxygen evolution reaction (OER) and urea oxidation reaction (UOR) in alkaline media, showcasing potential for reducing energy consumption in water electrolysis. Experimental results and density functional theory calculations indicated that the catalyst's superior performance was due to its optimized water adsorption energy, fast electron transfer rate, abundant active sites, and good electrical conductivity. This work highlights the application of doping engineering in water electrolysis and introduces a novel method for preparing efficient catalysts for OER and UOR.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Multidisciplinary
Dong Liu, Pengfei Zhou, Haoyun Bai, Haoqiang Ai, Xinyu Du, Mingpeng Chen, Di Liu, Weng Fai Ip, Kin Ho Lo, Chi Tat Kwok, Shi Chen, Shuangpeng Wang, Guichuan Xing, Xuesen Wang, Hui Pan
Summary: Perovskite oxides are studied as electrocatalysts for oxygen evolution reactions due to their low cost, customizable structure, high stability, and good catalytic activity. Two main challenges for efficient OER performance are limited active sites and low electrical conductivity, which can be overcome by strategies such as composition engineering, crystal facet control, morphology modulation, defect engineering, and hybridization. The review comprehensively summarizes recent developments in enhancing catalytic activities of perovskite oxide-based electrocatalysts for practical applications in OER.
Review
Plant Sciences
K. Nath, M. M. Najafpour, R. A. Voloshin, S. E. Balaghi, E. Tyystjarvi, R. Timilsina, J. J. Eaton-Rye, T. Tomo, H. G. Nam, H. Nishihara, S. Ramakrishna, J. -R. Shen, S. I. Allakhverdiev
PHOTOSYNTHESIS RESEARCH
(2015)
Article
Chemistry, Physical
M. M. Najafpour, S. Salimi, S. Esmael Balaghi, M. Holynska, T. Tomo, Moayad Hossaini Sadr, Behzad Soltani, J. -R. Shen, T. N. Veziroglu, S. I. Allakhverdiev
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2016)
Article
Chemistry, Physical
Mohammad Mandi Najafpour, Alireza Shirazi Amin, S. Esmael Balaghi, Bahareh Deljoo, Younes Mousazade, Tahereh Jafari, Mark Aindow, Steven L. Suib
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Chemistry, Inorganic & Nuclear
S. Esmael Balaghi, Elham Safaei, Linus Chiang, Edwin W. Y. Wong, Didier Savard, Ryan M. Clarke, Tim Storr
DALTON TRANSACTIONS
(2013)
Article
Chemistry, Inorganic & Nuclear
S. Esmael Balaghi, Elham Safaei, Mohammad Rafiee, Mohammad Hossein Kowsari
Article
Chemistry, Physical
S. Esmael Balaghi, C. A. Triana, Greta R. Patzke
Article
Chemistry, Physical
Sima Heidari, S. Esmael Balaghi, Alla S. Sologubenko, Greta R. Patzke
Summary: This study introduces an economical method for manufacturing stable and efficient manganese oxide anodes, and reveals the formation pathways and phase transformations by in situ monitoring.
Article
Nanoscience & Nanotechnology
S. Esmael Balaghi, Somayeh Mehrabani, Younes Mousazade, Robabeh Bagheri, Alla S. Sologubenko, Zhenlun Song, Greta R. Patzke, Mohammad Mahdi Najafpour
Summary: The research investigates the role of nanosized Cu oxide particles, ions, or clusters in the electrochemical OER with a mononuclear copper(II) complex with TMC. It is found that Cu oxide-based nanoparticles, rather than a molecular structure, serve as the true OER catalysts. This approach provides a roadmap for informed molecular catalyst design in the field of sustainable catalysis.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Hang Chen, Jingguo Li, Wooseok Yang, S. Esmael Balaghi, C. A. Triana, Christos K. Mavrokefalos, Greta R. Patzke
Summary: Efficient transfer of photogenerated carriers and improved stability against corrosion are crucial for maximizing the performance of photoanodes. In this study, a reduced catalytic layer formed on a TiO2 protected BiVO4 photoanode has been shown to enhance photogenerated carrier transfer efficiency and stability. The results indicate that the photoanodes displayed high photocurrent and more negative onset potential at pH 8, highlighting the importance of surface property tuning for optimal photoelectrochemical performance.
Article
Chemistry, Multidisciplinary
Zahra Abdi, S. Esmael Balaghi, Alla S. Sologubenko, Marc-Georg Willinger, Matthias Vandichel, Jian-Ren Shen, Suleyman Allakhverdiev, Greta R. Patzke, Mohammad Mahdi Najafpour
Summary: Cobalt compounds are efficient catalysts for the oxygen evolution reaction, and vitamin B-12, as a soluble cobalt compound with high enzymatic activity, is a relevant candidate for biomimetic catalyst research. By utilizing advanced techniques, this study provided direct evidence of diffuse layer dynamics on the working electrode interface and identified the formation of cobalt oxyphosphate nanoparticles as the initial stage of the catalytic pathway.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Review
Chemistry, Multidisciplinary
J. Li, C. A. Triana, W. Wan, D. P. Adiyeri Saseendran, Y. Zhao, S. E. Balaghi, S. Heidari, G. R. Patzke
Summary: The text emphasizes the importance of reliable water oxidation catalysts (WOCs) for artificial photosynthesis on a large scale. It discusses the evolution of WOC research into molecular and heterogeneous branches, as well as the growing need for knowledge transfer between these two fields. The review highlights recent developments in both molecular and heterogeneous WOCs, focusing on design principles, mechanistic insights, and the benefits of combining the best of both catalyst types.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Inorganic & Nuclear
Elham Safaei, S. Esmael Balaghi, Linus Chiang, Ryan M. Clarke, Diego Martelino, Michael Webb, Edwin W. Y. Wong, Didier Savard, Charles J. Walsby, Tim Storr
DALTON TRANSACTIONS
(2019)
Article
Chemistry, Multidisciplinary
Rene More, Michael Olah, S. Esmael Balaghi, Philipp Jaker, Sebastian Siol, Ying Zhou, Greta R. Patzke
Review
Biochemistry & Molecular Biology
Mohamad Mandi Najafpour, Sima Heidari, S. Esmael Balaghi, Malgorzata Holynska, Moayad Hossaini Sadr, Behzad Soltani, Maasoumeh Khatamian, Anthony W. Larkum, Suleyman I. Allakhverdiev
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
(2017)