Article
Chemistry, Multidisciplinary
Chike George Okoye-Chine, Mahluli Moyo, Diane Hildebrandt
Summary: This study focuses on the influence of surface hydrophobicity of SiO2 supports on the performance of SiO2-supported Fe catalysts in Fischer-Tropsch synthesis. Hydrophobized SiO2 supports improved the catalytic activity of Fe catalysts, reduced CH4 and CO2 selectivity, and increased C5+ selectivity.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Hans C. Hendrikse, Alejo Aguirre, Arno van der Weijden, Anne S. Meeussen, Fernanda Neira D'Angelo, Willem L. Noorduin
Summary: Biological assembly processes offer inspiration for ordering building blocks into advanced functional materials, with bioinspired strategies attractive for assembling supported catalysts, although difficult to achieve. This study presents a simple bioinspired route toward supported catalysts with tunable activity and selectivity, showcasing the potential for simple, versatile, and scalable routes to tunable and highly reactive bioinspired catalysts.
CRYSTAL GROWTH & DESIGN
(2021)
Review
Crystallography
Chike George Okoye-Chine, Samuel Mubenesha
Summary: The use of iron ore as an alternative catalyst in Fischer-Tropsch synthesis has the potential for cost-effectiveness. Although progress has been made, there are still opportunities to enhance the performance of iron ore catalysts. The study highlights the need to address deactivation pathways and suggests the use of advanced spectroscopic and computational methods.
Article
Energy & Fuels
Chike George Okoye-Chine, Mahluli Moyo, Diane Hildebrandt
Summary: By varying the degree of hydrophobization of SiO2 supports, the catalytic activity of Co catalysts supported on SiO2 was enhanced, also promoting the hydrogenation of CO. It was observed that higher hydrophobicity resulted in larger cobalt clusters, decreasing the reducibility of cobalt oxides and leading to a decline in activity.
Article
Chemistry, Physical
Fangxu Lu, Xin Chen, Zhigang Lei, Lixiong Wen, Yi Zhang
Summary: Research on iron-based catalysts doped with SiO2 or Al2O3 has shown that adjusting the formation of iron carbides can enhance the activity of Fischer-Tropsch synthesis reactions. Characterization results using techniques such as XPS and CO-DRIFTS revealed that SiO2 or Al2O3 affects the electronic state of iron atoms and promotes the formation of Fe-Si or Fe-Al interactions on the surface of iron powder, which in turn plays a key role in the formation of the active phase ε-Fe2C. The content of ε-Fe2C is found to be more beneficial to activity compared to the traditionally recognized active phase χ-Fe5C2 in Fischer-Tropsch synthesis reactions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Energy & Fuels
Zhunzhun Ma, Weixin Qian, Haitao Zhang, Hongfang Ma, Qiwen Sun, Weiyong Ying
Summary: The research found that the effects of magnesium and lithium on the catalyst can enhance CO adsorption, improve FTO activity, weaken carbonization process, increase the selectivity of light olefins, as well as promote CO conversion, and decrease CO2 production.
Article
Engineering, Environmental
Congcong Niu, Shupeng Guo, Ming Xia, Jungang Wang, Litao Jia, Bo Hou, Baojun Wang, Debao Li
Summary: Intrinsic kinetic experiments were conducted on an industrial Fischer-Tropsch Synthesis cobalt-based catalyst to develop kinetic models for process and engineering design purposes, as well as to understand the reaction mechanism. A hybrid kinetic model consisting of a Langmuir Hinshelwood Hougen Watson (LHHW) based CO consumption model and a lump-type product distribution-C19+ selectivity model was developed. The model, after parameter evaluation and optimization, demonstrated excellent predictability of CO conversion and C19+ selectivity across a wide range of process conditions. Additionally, it was found that CO activation occurs through a direct dissociation mechanism with the hydrogenation of dissociated C* and O* to CH* and OH* respectively as the rate determining step, with an activation energy of 80.26 kJ mol-1.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xiaoxue Han, Jing Lv, Shouying Huang, Qiao Zhao, Yue Wang, Zhenhua Li, Xinbin Ma
Summary: The conversion of syngas to liquid fuels and chemicals using Fischer-Tropsch synthesis is a promising alternative route. In this study, carbon-encapsulated nanoparticles were synthesized to control particle size and improve catalytic activity. The catalytic performance of these nanoparticles (Fe@C) was found to be superior to conventional carbon-supported nanoparticles (Fe/C). By tuning the particle size, a peak in iron time yield was obtained, suggesting that particle size plays a significant role in catalytic performance. This study provides insights into the size effect on Fe-based catalytic Fischer-Tropsch synthesis.
Article
Chemistry, Physical
Deizi Peron, Alan J. Barrios, Alan Taschin, Iulian Dugulan, Carlo Marini, Giulio Gorni, Simona Moldovan, Siddardha Koneti, Robert Wojcieszak, Joris W. Thybaut, Mirella Virginie, Andrei Y. Khodakov
Summary: The study found that antimony and tin have strong promoting effects on silica supported iron Fischer-Tropsch catalysts, significantly increasing the reaction rate and improving catalyst stability. The addition of these elements through impregnation can increase the intrinsic activity of iron surface sites by 7-10 times without affecting iron dispersion.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Ahmed E. Rashed, Alhassan Nasser, Marwa F. Elkady, Yoshihisa Matsushita, Ahmed Abd El-Moneim
Summary: The design of a highly active Fe-supported catalyst with the optimum particle and pore size, dispersion, loading, and stability is crucial for achieving the desired product selectivity. This study prepared two Fe-MIL-88B metal-organic framework (MOF)-derived catalysts using different deprotonation catalysts and evaluated their performance. The catalyst prepared with triethylamine (TEA) showed higher MOF yield and smaller crystal size compared to the one prepared with NaOH. The smaller particle size TEA catalyst exhibited higher activity and olefin yield in the Fischer-Tropsch synthesis.
Article
Chemistry, Multidisciplinary
Haefa Mansour, Enrique Iglesia
Summary: This study investigates the catalytic routes for upgrading CO2 to CO and hydrocarbons on dispersed Ru nanoparticles, revealing the elementary steps involved in these reactions and shedding light on the mechanism of CO2 activation. The kinetic hurdles in forming CH4 from CO2 are shown to stem not from the inertness of CO2 itself, but from the intermediate formation of CO molecules and the rate inhibition caused by chemisorbed CO. The findings are based on a combination of spectroscopic, isotopic, and kinetic measurements, highlighting the importance of considering the effects of nanoparticle structure and composition on reactivity and selectivity in CO2-H2 reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Energy & Fuels
Dalia Liuzzi, Francisco J. Perez-Alonso, Sergio Rojas
Summary: Ru-Co/Al2O3 and Ru-Fe/Al2O3 catalysts prepared by reduction-deposition method exhibit high activity in Fischer-Tropsch Synthesis, showing different conversion rates and product selectivity. The interaction between Ru and Co in Ru-Co/Al2O3 enhances the activity, while Ru-Fe/Al2O3 displays superior initial performance but declines over time, with less enriched products compared to Ru/Al2O3.
Article
Chemistry, Physical
Andrey S. Skrypnik, Sergey A. Petrov, Vita A. Kondratenko, Qingxin Yang, Henrik Lund, Alexander A. Matvienko, Evgenii Kondratenko
Summary: In this study, the authors investigate the factors affecting the selectivity of methane formation in CO2 Fischer-Tropsch synthesis using Fe-based catalysts. They identify that the defectiveness of Fe5C2, as determined by the ratio of C/Fe, plays a crucial role in hindering methane formation. By controlling the precursor morphology and preparation temperature, the defectiveness can be controlled, leading to improved production of higher hydrocarbons.
Article
Chemistry, Physical
Danjo De Chavez, Jun-ya Hasegawa
Summary: To understand the influence of incongruent strain on heterogeneous catalysis, the effect of isotropic and anisotropic strains in the catalytic activity of terrace Ru(0001) and stepped Ru(1015) surfaces have been studied. Adsorption-strain relations were investigated using the d-band model and the novel eigenstress model, and it was found that strain can alter the adsorption energies and activation energies, offering a potential route to break the Bronsted-Evans-Polyani relation in catalysis.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Thanh Hai Pham, Junbo Cao, Nan Song, Yueqiang Cao, Bingxu Chen, Gang Qian, Xinggui Zhou, De Chen, Xuezhi Duan
Summary: The relationship between structure and performance in iron-catalyzed Fischer-Tropsch synthesis is a complex issue, which is difficult to elucidate through experimental investigations. In this study, the researchers used first-principle calculations to investigate the reaction mechanisms and compare the rates and selectivity on different surfaces. The results show that the surface geometry has different effects on CH4 formation and C-1+C-1 coupling reactions.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Biochemistry & Molecular Biology
Fatemeh Janati-Fard, Mohammad R. Housaindokht, Hassan Monhemi, Ali Nakhaeipour
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2018)
Article
Chemistry, Multidisciplinary
Ali Nakhaei Pour, Sayyed Faramarz Tayyari
STRUCTURAL CHEMISTRY
(2019)
Article
Chemistry, Physical
Ali Nakhaei Pour, Mohammadreza Housaindokht
PROGRESS IN REACTION KINETICS AND MECHANISM
(2019)
Article
Medicine, Research & Experimental
Zahra Nakhaeepour, Mansour Mashreghi, Maryam M. Matin, Ali NakhaeiPour, Mohammad Reza Housaindokht
Article
Engineering, Chemical
Shahira Islamdoost Jami, Ali Nakhaei Pour, Ali Mohammadi, Seyed Mehdi Kamali Shahri
CHEMICAL ENGINEERING & TECHNOLOGY
(2020)
Article
Chemistry, Physical
Shohreh Mirzaei, Ali Ahmadpour, Akbar Shahsavand, Ali Nakhaei Pour, Leila LotfiKatooli, Ali Garmroodi Asil, Babak Pouladi, Arash Arami-Niya
APPLIED SURFACE SCIENCE
(2020)
Article
Chemistry, Applied
Zahra Keyvanloo, Ali Nakhaei Pour, Fatemeh Moosavi
Summary: The adsorption and diffusion behaviors of H-2, CO2, CO, MeOH, and EtOH in ZIF-8 were studied in pure and mixed states. The results showed different trends for the diffusion coefficients and adsorption isotherms of the guest molecules. The separation of MeOH from other molecules in the mixture was also investigated.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Chemical
Farzad Haghighi, Ali Ahmadpour, Ali Nakhaei Pour
Summary: Carbon aerogel was synthesized as a novel catalyst support for Fischer-Tropsch synthesis. Cobalt-doped carbon aerogel catalysts were synthesized using different strategies, and the size of cobalt particles affected the methane selectivity. Hydrogen spillover from the support to metallic particles improved reducibility and enhanced the production of hydrogenated products.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Ali Nakhaei Pour, Ali Mohammadi
Summary: In this study, ZSM-5 zeolite was prepared without organic templates using a hydrothermal process, and the synthesis kinetics were investigated based on crystal growth. The results showed that increasing the Na+ content in the initial gel composition decreased the activation energy for crystal growth and enhanced the crystallization rate of ZSM-5 zeolite.
INORGANIC AND NANO-METAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Ali Nakhaei Pour, Ali Mohammadi
Summary: This study investigated the effect of synthesis conditions on the crystal growth, structural features, acidity, and catalytic properties of hierarchical ZSM-5 zeolite in n-heptane cracking. The results showed that the crystallization rate of hierarchical ZSM-5 increased with the amount of SiO2 and Na2O in the initial gel, as well as the reaction temperature. Additionally, by adjusting the initial gel composition and reaction temperature, the porosity, acidity, and crystal size of hierarchical ZSM-5 could be controlled. The selectivity of ethylene and propylene in the heptane cracking reaction was found to be influenced by the acidity and micropore to mesopore ratio of the prepared zeolites, as predicted by both experimental and simulation results.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Mehdi A. Shadmehri, Mohammad Reza Housaindokht, Ali Nakhaei Pour
Summary: Graphitic carbon nitride (g-C3N4) was synthesized and used in the ODS process with cobalt doping (CoO/g-C3N4) to investigate its catalytic properties. The study found that the cobalt content loaded in the catalyst had the most significant impact on conversion efficiency, while the addition of cyclohexanone negatively affected efficiency.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Y. Ghiasi, H. Atashi, A. Zamanian, A. Nakhaei Pour
PHYSICAL CHEMISTRY RESEARCH
(2019)
Article
Nanoscience & Nanotechnology
Siroos Rostami, Ali Nakhaei Pour, Mohammad Izadyar
JOURNAL OF NANOSTRUCTURES
(2019)
Article
Chemistry, Multidisciplinary
Maryam Mousavi, Ali Nakhaei Pour
NEW JOURNAL OF CHEMISTRY
(2019)
Article
Engineering, Chemical
A. Garmroodi Asil, A. Nakhaei Pour, Sh Mirzaei
CHEMICAL PRODUCT AND PROCESS MODELING
(2019)
Article
Chemistry, Applied
Maoyi Yi, Jie Li, Mengran Wang, Xinming Fan, Bo Hong, Zhian Zhang, Aonan Wang, Yanqing Lai
Summary: In this study, polyacrylic acid (PAA) was used as a binder for the cathode in all-solid-state batteries. Through H+/Li+ exchange reaction, a uniform PAA-Li coating layer was formed on the cathode surface, improving the stability of the cathodic interface and the crystal structure. The SC-NCM83-PAA cathode exhibited superior cycling performance compared to traditional PVDF binder.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Yonghan Zhou, Zhongfeng Ji, Wenrui Cai, Xuewei He, Ruiying Bao, Xuewei Fu, Wei Yang, Yu Wang
Summary: By learning from the pencil-writing process, a solid-ink rubbing technology (SIR-tech) has been invented to develop durable metallic coatings on diverse substrates. The composite metallic skin by SIR-tech outperforms pure liquid-metal coating and shows great potential for various applications.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Ruiqi Tian, Hehe Zhang, Zeyu Yuan, Yuehua Man, Jianlu Sun, Jianchun Bao, Ming-Sheng Wang, Xiaosi Zhou
Summary: In this study, polypyrrole-encapsulated Sb2WO6 microflowers were synthesized and demonstrated to exhibit excellent potassium storage properties and cycling stability. The improved performance of Sb2WO6@PPy was attributed to the unique microflower structure, enhanced electronic conductivity, and protective PPy coating.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Review
Chemistry, Applied
Longxing Wu, Zhiqiang Lyu, Zebo Huang, Chao Zhang, Changyin Wei
Summary: This paper presents a comprehensive survey on physics-based state of charge (SOC) algorithms applied in advanced battery management system (BMS). It discusses the research progresses of physical SOC estimation methods for lithium-ion batteries and presents future perspectives for this field.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Honggang Huang, Yao Chen, Hui Fu, Cun Chen, Hanjun Li, Zhe Zhang, Feili Lai, Shuxing Bai, Nan Zhang, Tianxi Liu
Summary: The d-d orbital coupling induced by crystal-phase engineering effectively adjusts the electronic structure of electrocatalysts, improving their activity and stability, which is significant for electrocatalyst research.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Quanzhen Sun, Yifan Li, Caixia Zhang, Shunli Du, Weihao Xie, Jionghua Wu, Qiao Zheng, Hui Deng, Shuying Cheng
Summary: In this study, indium (In) ions were introduced into flexible Cu2ZnSn(S,Se)(4) (CZTSSe) solar cells to modify the back interface and passivate deep level defects in CZTSSe bulk. The results showed that In doping effectively inhibited the formation of secondary phase and V-Sn defects, decreased the barrier height at the back interface, passivated deep level defects in CZTSSe bulk, increased carrier concentration, and significantly reduced the V-OC deficit. Eventually, a flexible CZTSSe solar cell with a power conversion efficiency of 10.01% was achieved. This synergistic strategy of interface modification and bulk defects passivation through In incorporation provides a new approach for fabricating efficient flexible kesterite-based solar cells.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Negah Hashemi, Jafar Hussain Shah, Cejun Hu, Subhajit Nandy, Pavlo Aleshkevych, Sumbal Farid, Keun Hwa Chae, Wei Xie, Taifeng Liu, Junhu Wang, Mohammad Mahdi Najafpour
Summary: This study investigates the effects of Fe on the oxygen-evolution reaction (OER) in the presence of Au. The study identifies two distinct areas of OER associated with Fe and Au sites at different overpotentials. Various factors were varied to observe the behaviors of FeOxHy/Au during OER. The study reveals strong electronic interaction between Fe and Au, and proposes a lattice OER mechanism based on FeOxHy.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Yingshi Su, Yonghui Cheng, Zhen Li, Yanjia Cui, Caili Yang, Ziyi Zhong, Yibing Song, Gongwei Wang, Lin Zhuang
Summary: This study systematically investigates the key roles of Nafion on Cu nanoparticles electrocatalyst for CO2RR. The Nafion modifier suppresses the hydrogen evolution reaction, increases CO2 concentration and mass transfer process, and activates CO2 molecule to enhance C2 product generation. As a result, the selectivity of the hydrogen evolution reaction is reduced and the efficiency of C2 products is significantly improved.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Daijie Deng, Honghui Zhang, Jianchun Wu, Xing Tang, Min Ling, Sihua Dong, Li Xu, Henan Li, Huaming Li
Summary: By doping sulfur into vanadium nitride, the S-VN/Co/NS-MC catalyst exhibits enhanced oxygen reduction reaction activity and catalytic performance. When applied in liquid and flexible ZABs, it shows higher power density, specific capacity, and cycling stability.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Review
Chemistry, Applied
Yi Li, Fei Zhang
Summary: Self-assembly of metal halide perovskite nanocrystals holds significant application value in the fields of display, detector, and solar cell due to their unique collective properties. This review covers the driving forces, commonly used methods, and different self-assembly structures of perovskite nanocrystals. Additionally, it summarizes the collective optoelectronic properties and application areas of perovskite superlattice structures, and presents an outlook on potential issues and future challenges in the development of perovskite nanocrystals.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Anki Reddy Mule, Bhimanaboina Ramulu, Shaik Junied Arbaz, Anand Kurakula, Jae Su Yu
Summary: Direct growth of redox-active noble metals and rational design of multifunctional electrochemical active materials play crucial roles in developing novel electrode materials for energy storage devices. In this regard, silver (Ag) has attracted great attention in the design of efficient electrodes. The construction of multifaceted heterostructure cobalt-iron hydroxide (CFOH) nanowires (NWs)@nickel cobalt manganese hydroxides and/or hydrate (NCMOH) nanosheets (NSs) on the Ag-deposited nickel foam and carbon cloth (i.e., Ag/ NF and Ag/CC) substrates is reported. The as-fabricated Ag@CFOH@NCMOH/NF electrode delivered superior areal capacity value of 2081.9 μA h cm-2 at 5 mA cm-2. Moreover, as-assembled hybrid cell based on NF (HC/NF) device exhibited remarkable areal capacity value of 1.82 mA h cm-2 at 5 mA cm-2 with excellent rate capability of 74.77% even at 70 mA cm-2. Furthermore, HC/NF device achieved maximum energy and power densities of 1.39 mW h cm-2 and 42.35 mW cm-2, respectively. To verify practical applicability, both devices were also tested to serve as a self-charging station for various portable electronic devices.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Zanling Huang, Shuqi Zhu, Yuan Duan, Chaoran Pi, Xuming Zhang, Abebe Reda Woldu, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu, Xiangdong Yao
Summary: In this study, it was found that Ni sites act as a host to attract Fe(III) to form Fe(Ni)(III) binary centers, which promote the oxygen evolution reaction (OER) activity and stability by cyclical formation of intermediates. Additionally, other ions can also catalyze the OER process on different electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Jie Zeng, Jian Bao, Ya Zhang, Xun-Lu Li, Cui Ma, Rui-Jie Luo, Chong-Yu Du, Xuan Xu, Zhe Mei, Zhe Qian, Yong-Ning Zhou
Summary: The balance between cationic redox and oxygen redox is crucial for achieving high energy density and cycle stability in sodium batteries. This study demonstrates the reversible Mn2+/Mn4+ redox in a P3-Na0.65Li0.2Co0.05Mn0.75O2 cathode material through Co substitution, effectively suppressing the contribution of oxygen redox and improving structure stability.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Daniela M. Josepetti, Bianca P. Sousa, Simone A. J. Rodrigues, Renato G. Freitas, Gustavo Doubek
Summary: Lithium-oxygen batteries have high energy density potential but face challenges in achieving high cyclability. This study used operando Raman experiments and electrochemical impedance spectroscopy to evaluate the initial discharge processes in porous carbon electrodes. The results indicate that the reaction occurs at the Li2O2 surface and the growth of Li2O2 forms a more compact and homogeneous structure.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Ziqi Zhang, Jinyun Xu, Yu Zhang, Liping Zhao, Ming Li, Guoqiang Zhong, Di Zhao, Minjing Li, Xudong Hu, Wenju Zhu, Chunming Zheng, Xiaohong Sun
Summary: This paper explores the challenge of increasing global CO2 emissions and highlights the role of porous metal oxide materials in electrocatalytic reduction of CO2 (CO2RR). Porous metal oxides offer high surface area and tunability for optimizing CO2RR reaction mechanisms.
JOURNAL OF ENERGY CHEMISTRY
(2024)