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
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
Energy & Fuels
Zhonghao Han, Weiyong Ying, Haitao Zhang, Hongfang Ma, Weixin Qian
Summary: Co-precipitated FeSi-cp catalysts, impregnated FeSi-im catalyst, and core-shell Fe@Si catalysts synthesized through different methods were characterized using various techniques. The configuration between Fe and Si was found to significantly influence the catalyst performance. FeSi-cp and FeSi-im exhibited high dispersion but were prone to agglomeration in FTS reactions. On the other hand, Fe@Si displayed high crystallinity and strong CO chemisorption capacity, promoting the formation of Fe5C2. Additionally, the SiO2 shell in the core-shell structure prevented carbon deposition and inhibited the production of C-5(+) species. The FTS performance results demonstrated that the core-shell Fe@Si catalysts exhibited higher selectivity towards C-2(=)4= and better stability over a period of 120 hours.
Article
Engineering, Chemical
Franscina K. Ramutsindela, Chike G. Okoye-Chine, Christel O. L. Mbuya, Samuel Mubenesha, Joshua Gorimbo, Leonard U. Okonye, Xinying Liu, Diane Hildebrandt
Summary: This study explores the use of raw iron ore as a catalyst precursor in Fischer-Tropsch synthesis and investigates the effect of different reducing agents on the catalytic performance. The results show that the raw iron ore reduced with CO exhibits the highest CO conversion.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Energy & Fuels
Agija Stanke, Valdis Kampars
Summary: The transportation sector's significant contribution to greenhouse gas emissions has prompted the search for sustainable and renewable alternatives to fossil fuels. This study focused on the synthesis of mesoporous Fe/SBA-15 catalysts using natural clays as binders and promoters. The results showed that catalysts agglomerated with kaolin exhibited better performance, and catalysts in powdered form had higher CO conversion rates.
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
Energy & Fuels
Zhenxin Liu, Gaopeng Jia, Chenxi Zhao, Yu Xing
Summary: Synthesis of Fe/K catalysts using different ratios of zinc aluminate spinel to alumina and examination of their performance under syngas conversion tests show that catalyst 15%Fe/2% K2O/83%(ZnAl2O4 center dot 1Al(2)O(4)) exhibits impressive values, particularly in terms of olefin/paraffin ratios at a CO conversion of 38.3%.
Article
Chemistry, Physical
Florian Wolke, Yiwen Hu, Michael Schmidt, Oliver Korup, Raimund Horn, Erik Reichelt, Matthias Jahn, Alexander Michaelis
Summary: The complex reaction mechanism of iron-based Fischer-Tropsch synthesis involves primary and secondary pathways. Experimental results show that the composition of the catalyst influences the hydrogenation reactions of 1-alcohols and olefins, but has no significant impact on product distribution.
CATALYSIS COMMUNICATIONS
(2021)
Article
Engineering, Chemical
Yingying Xue, Zengchen Liu, Yaxuan Zhang, Shengyang Duan, Jiangang Chen
Summary: This study reveals that the performance of iron-based catalysts can be modified by simply changing the percentage of Fe(II)/Fe(III) in the raw materials. The catalysts prepared by FeCl2·4H2O exhibit higher CO conversion, lower methane selectivity, and higher C-2-C-4 olefin-to-paraffin ratio, which can be mainly attributed to the higher Fe2+ content in the unreduced state.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Zahra Teimouri, Nicolas Abatzoglou, Ajay K. Dalai
Summary: In this study, machine learning was used to optimize the process conditions for synthesis of mesoporous activated carbon (AC) from biomass, which served as a catalyst support in Fischer-Tropsch synthesis (FTS). The random forest regression (RFR) method achieved the best prediction accuracy for the textural features of AC. The AC prepared under the optimized conditions showed promising potential as a biomass-based catalyst support for FTS, with superior activity and selectivity compared to other catalysts.
Article
Chemistry, Physical
Zahra Gholami, Fatemeh Gholami, Zdenek Tisler, Jan Hubacek, Martin Tomas, Miroslav Baciak, Mohammadtaghi Vakili
Summary: This review describes the production of light olefins through the FTO process using both unsupported and supported iron-based catalysts. It discusses the catalytic properties and performances of different catalysts, as well as the effect of support and physico-chemical properties on catalyst activity. The selection of suitable catalysts and optimal process conditions can enhance the FTO reaction for light olefins production.
Article
Chemistry, Physical
Maximilian Medicus, Judith Mettke, Michael Merkel, Sebastian Hilbig, Johannes Abel, Felix Seewald, Hans-Henning Klauss, Erik Reichelt
Summary: The study focuses on the sustainable production of chemicals using Fischer-Tropsch synthesis from renewable sources and electricity, specifically targeting the synthesis of higher alcohols. Different support materials and electrochemical promoters were evaluated, and lithium was found to have a significant promoting effect on conversion and alcohol selectivity. Further investigations on the effects of surface, shape, porosity, and Fe content led to the development of a superior shaped Fe-based catalyst, outperforming the state-of-the-art powdered catalysts.
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, Physical
Weizhen Li, Xuebing Zhang, Tao Wang, Xiaoyu Zhang, Linlin Wei, Quan Lin, Yijun Lv, Zhuowu Men
Summary: The performance of precipitated iron Fischer-Tropsch synthesis catalysts is significantly influenced by chlorine modification. The higher the chlorine content in the catalyst, the greater the deactivation.
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
Jin Hee Lee, Hack-Keun Lee, Dong Hyun Chun, Hyunkyung Choi, Geun Bae Rhim, Min Hye Youn, Heondo Jeong, Shin Wook Kang, Jung-Il Yang, Heon Jung, Chul Sung Kim, Ji Chan Park
Article
Energy & Fuels
Young-eun Kim, Hyo Been Im, Un Ho Jung, Ji Chan Park, Min Hye Youn, Heon-Do Jeong, Dong-Wook Lee, Geun Bae Rhim, Dong Hyun Chun, Ki Bong Lee, Kee Young Koo
Article
Chemistry, Physical
Hack-Keun Lee, Jin Hee Lee, Jong Hyuk Seo, Dong Hyun Chun, Shin Wook Kang, Dong Wook Lee, Jung-Il Yang, Geun Bae Rhim, Min Hye Youn, Heon-Do Jeong, Heon Jung, Ji Chan Park
JOURNAL OF CATALYSIS
(2019)
Article
Chemistry, Multidisciplinary
Jumi Hong, Harim Kim, Ji Eun Lee, You Na Ko, Ki Tae Park, Young Eun Kim, Min Hye Youn, Soon Kwan Jeong, Jinwon Park, Wonhee Lee
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2020)
Article
Energy & Fuels
Ji Eun Lee, Dong Hyun Chun, Geun Bae Rhim, Deviana Deviana, Heon Do Jeong, Ji Chan Park, Kee Young Koo, Soon Kwan Jeong, Chang Seop Hong, Min Hye Youn
Review
Chemistry, Applied
Dong Hyun Chun, Geun Bae Rhim, Min Hye Youn, Deviana Deviana, Ji Eun Lee, Ji Chan Park, Heondo Jeong
TOPICS IN CATALYSIS
(2020)
Article
Energy & Fuels
Dea Hyun Moon, Jun Eu, Wonhee Lee, Young Eun Kim, Ki Tae Park, You Na Ko, Soon Kwan Jeong, Min Hye Youn
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Daniel Tan, Wonhee Lee, Young Eun Kim, You Na Ko, Min Hye Youn, Ye Eun Jeon, Jumi Hong, Soon Kwan Jeong, Ki Tae Park
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Engineering, Environmental
Young Eun Kim, Beomil Kim, Wonhee Lee, You Na Ko, Min Hye Youn, Soon Kwan Jeong, Ki Tae Park, Jihun Oh
Summary: The study focuses on investigating Ag/TiO2 catalysts for electrochemical reduction of CO2 to syngas with a controllable H-2/CO ratio. By manipulating oxygen vacancies and phase differences of TiO2, a stable H-2/CO ratio was achieved with high Faradaic efficiency and partial current densities. The introduction of oxygen vacancy defects and phase changes in TiO2 influenced the H-2/CO ratio of the catalyst, showing promising results for syngas production.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Dea Hyun Moon, Arti Murnandari, Omotayo Salawu, Chan-Woo Lee, Wonhee Lee, Young Eun Kim, Ki Tae Park, Ji Eun Lee, Jun Eo, Soon Kwan Jeong, Min Hye Youn
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2020)
Article
Chemistry, Multidisciplinary
Sun-Mi Hwang, Song Yi Choi, Min Hye Youn, Wonhee Lee, Ki Tae Park, Kannan Gothandapani, Andrews Nirmala Grace, Soon Kwan Jeong
Article
Energy & Fuels
Young-eun Kim, Unho Jung, Dahye Song, Hyo Been Im, Ji Chan Park, Min Hye Youn, Heon-Do Jeong, Geun Bae Rhim, Dong Hyun Chun, Dong-Wook Lee, Ki Bong Lee, Kee Young Koo
Article
Engineering, Environmental
Dea Hyun Moon, Sang Shin Park, Seong-Pil Kang, Wonhee Lee, Ki Tae Park, Dong Hyun Chun, Geun Bae Rhim, Sun-Mi Hwang, Min Hye Youn, Soon Kwan Jeong
Summary: The study examined the kinetics parameters of CO2 mineralization reaction using a static mixer, with a focus on the influence of Ca(OH)(2) dehydration rate. The use of a static mixer significantly improved the CO2 conversion rate, with turbulent flow effects playing a crucial role in the reaction efficiency.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Daniel Tan, Wonhee Lee, Young Eun Kim, You Na Ko, Min Hye Youn, Ye Eun Jeon, Jumi Hong, Jeong Eun Park, Jaeho Seo, Soon Kwan Jeong, Yejung Choi, Hyuk Choi, Hyun You Kim, Ki Tae Park
Summary: CO2 electrocatalytic conversion is a viable approach to reduce the atmospheric CO2 concentration. In this study, the fabrication of indium-bismuth nanosphere demonstrated outstanding performance in efficient CO2 reduction to formate, surpassing traditional catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)