Article
Energy & Fuels
Mingqiang Chen, Xiaoyang Feng, Yishuang Wang, Defang Liang, Chang Li, Zhonglian Yang, Jun Wang
Summary: In this study, attapulgite-based MCM-41 (AM) was synthesized using attapulgite as a silicon source, and AM-supported Ni/Ce/Zr catalysts were manufactured by sol-gel assisted impregnation method. It was found that the optimal Ce-Zr additives and calcination temperature could enhance the electronic interaction among Ni/Ce/Zr components, resulting in the highest ethanol conversion rate and stability of the catalyst. This study provides a new opportunity for the preparation of efficient and low-cost AM-supported Ni/Ce/Zr catalysts for ethanol steam reforming.
Article
Chemistry, Applied
Marinela D. Zhurka, Angeliki A. Lemonidou, Panagiotis N. Kechagiopoulos
Summary: Rh is more active and selective than Ni, while CeO2-ZrO2-La2O3 efficiently promotes the water gas shift reaction, leading to higher activity, selectivity, and stability in Rh/CeO2-ZrO2-La2O3 catalyst for ethanol steam reforming.
Review
Chemistry, Physical
Wan Nabilah Manan, Wan Nor Roslam Wan Isahak, Zahira Yaakob
Summary: This paper reviews the management of CO2 emissions and the recent developments in bimetallic catalysts utilizing cerium oxide in dry reforming methane and steam reforming methane from 2015 to 2021. The focus is on the identification of key trends in catalyst preparation using cerium oxide and the effectiveness of the formulated catalysts.
Article
Chemistry, Physical
Mayankkumar L. Chaudhary, Ahmed S. Al-Fatesh, Rawesh Kumar, Mahmud S. Lanre, Francesco Frusteri, Salwa B. AlReshaidan, Ahmed A. Ibrahim, Ahmed E. Abasaeed, Anis H. Fakeeha
Summary: The idea of hydrogen production through dry reforming of methane (DRM) is excellent for decreasing greenhouse gas concentration. The addition of ceria to the yttria-zirconia supported nickel catalyst enhances its catalytic activity. The addition of 2 wt% ceria reduces the crystallinity of metallic nickel, increases the CH4 decomposition sites and oxygen mobility, resulting in a 79% H2 yield.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Agustin Salcedo, Pablo G. Lustemberg, Ning Rui, Robert M. Palomino, Zongyuan Liu, Slavomir Nemsak, Sanjaya D. Senanayake, Jose A. Rodriguez, M. Veronica Ganduglia-Pirovano, Beatriz Irigoyen
Summary: Ni/CeO2 catalysts show high activity for methane steam reforming at relatively low temperatures, effectively preventing coke formation, with hydroxyl-assisted CO formation providing a low-barrier pathway to prevent carbon accumulation.
Article
Chemistry, Physical
Agata Lamacz
Summary: The formation of tars during coal or biomass gasification leads to decreased efficiency and increased maintenance costs. Catalytic steam reforming using nickel supported on ceria-zirconia (Ni/CeZrO2) is a promising method for tar removal, with Ni providing the reforming activity and CeZrO2 protecting the catalyst from carbon deposition.
Article
Chemistry, Physical
Yiru Mao, Lizhi Zhang, Xiangjuan Zheng, Wenming Liu, Zhihua Cao, Honggen Peng
Summary: In this study, a series of bimetallic RhNi catalysts supported on MgAl2O4 were synthesized and used for low-temperature biogas dry reforming. The results showed that the RhNi catalyst achieved high conversion rates of CH4 and CO2 at low reaction temperature (600 degrees C) without carbon deposition. The enhanced coking resistance was attributed to the addition of Rh, which efficiently suppressed carbon formation, and the high surface areas of the MgAl2O4 support, which promoted CO2 adsorption and activation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Applied
Fazia Agueniou, Hilario Vidal, M. Pilar Yeste, Juan C. Hernandez-Garrido, Miguel A. Cauqui, Jose M. Rodriguez-Izquierdo, Jose J. Calvino, Jose M. Gatica
Summary: The study evaluated the performance of Ni catalysts supported by Ce-Zr oxide in dry reforming of methane, and the structured catalysts showed better performance at high temperatures without deactivation.
Article
Chemistry, Physical
Sonali Das, Ashok Jangam, Shanmukapriya Jayaprakash, Shibo Xi, Kus Hidajat, Keiichi Tomishige, Sibudjing Kawi
Summary: Sandwich structured core-shell Ni-Phyllosilicate@Ce1-xZrxO2 catalysts with optimal Zr loading in the Ce1-xZrxO2 shell are found to greatly enhance the intrinsic activity for DRM due to increased lattice oxygen mobility of the ceria-zirconia shell and stronger metal-support interaction with Ni. Involvement of lattice oxygen in methane activation and dissociation contributes to the higher DRM activity of the Zr-doped catalyst with maximum oxygen storage capacity, as inferred from rigorous kinetic and mechanism studies.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Energy & Fuels
Fatemeh Zarei-Jelyani, Fatemeh Salahi, Mohammad Farsi, Mohammad Reza Rahimpour
Summary: Steam methane reforming is an important reaction for producing environmentally-friendly hydrogen from methane. In this study, Ni-Co co-impregnated catalysts were synthesized using a hollow sphere alumina support, leading to improved stability and performance. Among the catalysts tested, Ni-2-Co-1/H-Al2O3 showed the highest methane conversion and hydrogen yield at 700 ℃.
Article
Chemistry, Physical
Paulina Jagodka, Krzysztof Matus, Michal Sobota, Agata Lamacz
Summary: Dry reforming of methane (DRM) is an important process for transforming two potent greenhouse gases into synthesis gas. However, prompt deactivation of the catalyst due to carbon deposition can be hindered by proper catalyst design.
Article
Energy & Fuels
Azita Etminan, S. K. Sadrnezhaad
Summary: In this study, mesoporous monometallic and bimetallic catalysts were synthesized and characterized. The results showed that the bimetallic catalyst had higher conversion and lower carbon deposition in methane steam reforming. The study also suggested that highly dispersed active Ni species might play an important role in the catalyst activity and resistance to coking in the reaction.
Article
Chemistry, Multidisciplinary
Intan Clarissa Sophiana, Ferry Iskandar, Hary Devianto, Norikazu Nishiyama, Yogi Wibisono Budhi
Summary: Dry reforming of methane was studied using high-ratio zirconia in ceria-zirconia-mixed oxide-supported Ni catalysts. The effects of the catalyst support and Ni composition on the catalyst performance were investigated. The results showed that the 10%Ni/CeZrO2 catalyst exhibited the highest catalytic performance, with a high H-2/CO ratio indicating superior hydrogen production.
Review
Chemistry, Physical
Ahmad Salam Farooqi, Mohammad Yusuf, Noor Asmawati Mohd Zabidi, R. Saidur, Khairuddin Sanaullah, Abid Salam Farooqi, Afrasyab Khan, Bawadi Abdullah
Summary: Rapid global energy demand growth has led to increased greenhouse gas emissions, highlighting the importance of utilizing Ni-based catalysts for methane reforming as a sustainable solution. Ni-based catalysts offer cost-effectiveness and high catalytic activity in curbing emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Tamara S. Moraes, Vanderlei S. Bergamaschi, Joao C. Ferreira, Estevam Spinace
Summary: A core-shell catalyst was tested for ethanol steam reforming reaction under low-temperature conditions, showing excellent activity and high coke inhibition capacity compared to other catalysts.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Applied
Marinela D. Zhurka, Angeliki A. Lemonidou, Panagiotis N. Kechagiopoulos
Summary: Rh is more active and selective than Ni, while CeO2-ZrO2-La2O3 efficiently promotes the water gas shift reaction, leading to higher activity, selectivity, and stability in Rh/CeO2-ZrO2-La2O3 catalyst for ethanol steam reforming.
Article
Engineering, Chemical
Theodoros Papalas, Andy N. Antzaras, Angeliki A. Lemonidou
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Applied
Andy N. Antzaras, Eleni Heracleous, Angeliki A. Lemonidou
Summary: In this study, hybrid, multifunctional catalytic materials based on NiO and CaO were developed for the Sorption Enhanced Chemical Looping Steam Methane Reforming (SE-CL-SMR) process, achieving high CH4 conversion and high-purity hydrogen production at 650 degrees C. Compared to a mixed bed of sorbent and oxygen transfer material, operation with the multifunctional material allows for more efficient use of the heat generated during regeneration.
Article
Energy & Fuels
Roberto Grena, Michela Lanchi, Luca Turchetti, Tommaso Crescenzi
Summary: A linear receiver capable of reaching temperatures of up to 800 degrees Celsius is achieved by avoiding limiting factors in traditional receivers and utilizing thermal insulation through an elliptic reflecting cavity. This technology opens up possibilities for processes requiring temperatures above 700 degrees Celsius, such as thermochemical cycles for hydrogen production and solar fuel production.
JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
(2021)
Article
Engineering, Environmental
Athanasios Scaltsoyiannes, Andy Antzaras, Georgios Koilaridis, Angeliki Lemonidou
Summary: Calcium looping is an attractive technology for post-combustion CO2 capture, hydrogen production, and energy storage applications. The carbonation reaction is a first-order process with respect to CO2 in the gas phase, and the developed kinetic model can predict the carbonation rate of CaO-based materials regardless of the type and percentage of the contained inert phase.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Michela Lanchi, Luca Turchetti, Salvatore Sau, Raffaele Liberatore, Stefano Cerbelli, Maria Anna Murmura, Maria Cristina Annesini
Article
Chemistry, Physical
Alberto Giaconia, Gaetano Iaquaniello, Giampaolo Caputo, Barbara Morico, Annarita Salladini, Luca Turchetti, Giulia Monteleone, Antonella Giannini, Emma Palo
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Multidisciplinary
Theodoros Papalas, Andy N. Antzaras, Angeliki A. Lemonidou
Summary: This study investigated the CO2 capture performance of MgO derived from mineral magnesite doped with limestone and molten Li, Na, and K nitrates, showing that increasing the molten promoter loading can enhance CO2 sorption rate, while higher CaCO3 content impedes CO2 diffusion. Despite morphological transformations during cyclic operation, redistribution of alkali salts contributes to the stability and promising performance of the sorbent.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Chemistry, Physical
Stavros A. Theofanidis, G. T. Kasun Kalhara Gunasooriya, Ioanna Itskou, Maria Tasioula, Angeliki A. Lemonidou
Summary: The study reveals the potential of using iron oxide as a catalyst support for the on-purpose ethylene production through CO2-assisted oxidative dehydrogenation of ethane. The selectivity of the catalyst towards C-H bond cleavage can be controlled by adjusting the Ni/Fe ratio. Fine-tuning the Ni/Fe molar ratio leads to stable catalytic performance with improved selectivity towards ethylene and ethane conversion.
Article
Chemistry, Physical
Maria Tasioula, Emmanuelle de Clermont Gallerande, Stavros A. Theofanidis, Alessandro Longo, Kirill A. Lomachenko, Christoph Sahle, Angeliki A. Lemonidou
Summary: Iron oxide-based catalysts demonstrated highly selective conversion of CO2 to CO in parallel with ethane dehydrogenation, achieving 90% selectivity at a conversion rate of 23.3%. X-ray characterization techniques and structural modeling were used to understand the active sites responsible for C-H bond scission. The dynamic structural modifications of the catalysts during the reaction showed the crucial role of the support, resulting in unprecedented ethylene selectivity.
Article
Engineering, Chemical
Rita Kol, Elisabetta Carrieri, Sergei Gusev, Michiel Verswyvel, Norbert Niessner, Angeliki Lemonidou, Dimitris S. Achilias, Steven De Meester
Summary: The potential of filtration and centrifugation was analyzed to remove impurities and pigments from polystyrene waste. Filtration showed poor performance in removing PB-PS particles, while centrifugation successfully separated particles and pigments, reducing turbidity. Centrifugation can be used for initial cleaning of polystyrene waste to facilitate further processing.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Marinela D. Zhurka, James A. Anderson, Alan J. McCue, Angeliki A. Lemonidou, Panagiotis N. Kechagiopoulos
Summary: Sustainable hydrogen production from bio-ethanol can be improved by using low-cost and abundant minerals as catalyst supports. This study focuses on the kinetic study of ethanol steam reforming using a Ni catalyst supported on natural sepiolite, and investigates the effect of the support on the reaction mechanism. It is found that the mechanism depends on the catalyst calcination temperature and degree of hydration of the sepiolite, with the presence of multiple adsorption sites for oxygenates and water.
REACTION CHEMISTRY & ENGINEERING
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Ivan Di Piazza, Amelia Tincani, Mariano Tarantino, Massimo Valdiserri, Serena Bassini, Ranieri Marinari, Antonio Rinaldi, Luca Turchetti
2020 20TH IEEE INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING AND 2020 4TH IEEE INDUSTRIAL AND COMMERCIAL POWER SYSTEMS EUROPE (EEEIC/I&CPS EUROPE)
(2020)
Proceedings Paper
Energy & Fuels
Salvatore Sau, Francesca Varsano, Anna Chiara Tizzoni, Natale Corsaro, Claudia Frittella, Michela Lanchi, Raffaele Liberatore, Annarita Spadoni, Luca Turchetti, Maria Cristina Annesini
INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS (SOLARPACES 2019)
(2020)
Proceedings Paper
Energy & Fuels
Tiziano Delise, Anna Chiara Tizzoni, Luca Turchetti, Natale Corsaro, Salvatore Sau, Silvia Licoccia
INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS (SOLARPACES 2019)
(2020)
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)