Article
Chemistry, Physical
Zhuobin Huo, Peng Zhao, Pengfei Miu, Lingling Ren, Bangjie Tan, Nengjie Feng, Hui Wan, Guofeng Guan
Summary: Ag-Ce modified 3DOM LaMnO3 catalysts synthesized by redox etching precipitation showed excellent catalytic performance for NOx-assisted soot oxidation, with good activity and water resistance. Ag and CeO2 played important roles in enhancing catalyst performance.
APPLIED SURFACE SCIENCE
(2022)
Article
Energy & Fuels
Jiangjun Wei, Chenyang Fan, Yuan Zhuang, Zheng Fu, Ze Guan, Haizhao Li, Deliang Li, Yejian Qian
Summary: The mechanism of soot catalytical oxidation was investigated through various experiments, including temperature-programmed-oxidation (TPO), X-ray photoelectron spectroscopy, Fourier Transform Infrared Spectrometer, and Raman scattering spectrometer. It was found that ceria catalyst enhances the consumption of amorphous carbon and improves the structure and composition of soot surface, facilitating the oxidation reactions.
Article
Chemistry, Physical
Begona Sellers-Anton, Esther Bailon-Garcia, Arantxa Davo-Quinonero, Dolores Lozano-Castello, Agustin Bueno-Lopez
Summary: PrOx nanoparticles exhibit high catalytic activity in soot combustion, attributed to their high surface area, low crystal size, and improved reducibility. After aging, PrOx nanoparticles maintain high activity compared to other aged catalysts, highlighting their superior performance in long-term stability.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Chunlei Zhang, Di Yu, Chao Peng, Lanyi Wang, Xuehua Yu, Yuechang Wei, Jian Liu, Zhen Zhao
Summary: This paper discusses the importance of catalytic after-treatment exhaust technology in removing diesel soot particles, focusing on the preparation methods and applications of three-dimensional ordered macroporous catalysts. The latest research progress on the catalytic performance and mechanism of these catalysts for soot particle combustion is summarized, and the future development trends are proposed.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Multidisciplinary
K. Ghadamkheir, J. Zareei, Xiaohu Yang, M. Hatami
Summary: Diesel engines play an important role in transportation, but the main issues are the high levels of CO2 and soot emissions. A numerical study found that blending oxymethylene ether with diesel can improve engine performance and reduce emissions. The results showed that using oxymethylene ether can significantly decrease soot and NOx emissions by over 80%, and also reduce CO2 emissions by approximately 66%.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Jinlin Han, Hesheng Bao, L. M. T. Somers
Summary: This research investigates the reactivity controlled compression ignition combustion of n-butanol and n-heptane in a single cylinder heavy-duty diesel engine. The results show that the double direct injection strategy can properly phase combustion and achieve high thermal efficiency, especially in low to medium load conditions. Furthermore, high exhaust gas recirculation rates are necessary for proper control of combustion phasing. Extremely low particulate matter and NOx emissions were observed across the tested load range, with a gross indicated efficiency exceeding 50% from low to medium load.
Article
Green & Sustainable Science & Technology
Inbanaathan Papla Venugopal, Dhinesh Balasubramanian, Amudhan Rajarajan
Summary: The study explored the use of waste cooking oil biodiesel and polyoxymethylene dimethyl ether blends to reduce soot and NOx emissions in CRDI diesel engines without modifications, achieving better fuel efficiency.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Chemistry, Multidisciplinary
Jiang Shao, Xianen Lan, Chaoxin Zhang, Chunmei Cao, Yifu Yu
Summary: With the increasing awareness of environmental protection, the elimination of soot particles has received wide attention. Coating well-designed catalysts on diesel particulate filters (DPFs) is considered an effective method to lower the ignition temperature of soot particles. Improving the structures of catalysts is crucial for achieving good catalytic performance and high stability. This review summarizes recent advances in soot combustion catalysts with different micro-structures, providing critical assessments and typical examples to guide the synthesis of advanced catalysts.
CHINESE CHEMICAL LETTERS
(2022)
Article
Environmental Sciences
Jishuang He, Hailong Zhang, Wei Wang, Peng Yao, Yi Jiao, Jianli Wang, Yaoqiang Chen
Summary: This study found that Na- and K-doped catalysts have a promoting effect on soot combustion, while Ca- and P-doped catalysts have a negative impact. Doping biodiesel impurities led to a smaller surface area by blocking small pores. Surface chemical properties, including NO oxidation/storage capacity, play a significant role in promoting soot combustion.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Yi Guo, Eva J. Horchler, Neal Fairley, Svetlana Stevanovic, Jing Shang, Zoran Ristovski
Summary: This study found that the evolution of oxygen-containing functional groups on soot flake leads to oxidation, and suggested that these functional groups play a significant role in the development of DPF regeneration strategy and control of secondary particle emissions.
Article
Energy & Fuels
Cengizhan Cengiz, Salih Ozen Unverdi
Summary: In this study, the combustion characteristics and emissions of a heavy-duty direct injection diesel engine under early intake valve closing strategy are evaluated. The results show that the strategy can improve combustion efficiency, reduce fuel consumption and NOx emissions. However, it also leads to increased CO emissions when used with EGR.
Article
Energy & Fuels
Samuel Adeola Okeleye, Arvind Thiruvengadam, Marc Cyril Besch, Saroj Pradhan, Daniel Carder
Summary: With increasingly stringent emission regulations, there is a need for improvement in emissions control technology in heavy-duty diesel engines. The integration of Selective Catalytic Reduction (SCR) and Diesel Particulate Filter (DPF) in a single component, known as Selective Catalytic Reduction on Filter (SCRF), offers space-saving and thermal inertia opportunities. This study investigates the impact of particulate matter loading on the activities of a SCRF component coated with Cu-Ze catalyst on a heavy-duty diesel engine, showing that both NOx conversion efficiency and passive soot oxidation increase with loading.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Energy & Fuels
Teerapong Iamcheerangkoon, Nuwong Chollacoop, Boonlue Sawatmongkhon, Thawatchai Wongchang, Sak Sittichompoo, Sathaporn Chuepeng, Kampanart Theinnoi
Summary: This research investigated the activity of nonthermal plasma (NTP) during NOx reduction and the soot characteristics in an unmodified Euro V diesel engine fueled with different biodiesel blends. The experiment found that biodiesel fuel produces lower levels of soot compared to diesel.
Article
Chemistry, Physical
Anna Cooper, Stan Golunski, Stuart H. Taylor
Summary: The addition of potassium to the catalyst has an impact on the relationship between NOx reduction and soot oxidation. Lower potassium loadings can promote NOx reduction without affecting soot oxidation, while higher loadings almost completely disable NOx reduction and only contribute to the activity of the catalyst in the presence of soot. At a loading of 20% potassium, the potassium phase segregates, exposing other reaction sites.
Article
Materials Science, Coatings & Films
M. Angeles Stegmayer, M. Laura Godoy, John F. Munera, Eduardo E. Miro, Viviana G. Milt
Summary: In this study, CeO2 nanofibers were directly grown in situ on cordierite monoliths by hydrothermal synthesis for diesel soot combustion. The results showed that mechanical stirring during the synthesis was necessary to obtain desired nanofibers and ensure uniform coverage and good anchoring to the substrate. The monolithic catalyst with CeO2 nanoarray exhibited catalytic oxidation activity similar to bare CeO2 fibers.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Virginia Alcalde-Santiago, Arantxa Davo-Quinonero, Ion Such-Basanez, Dolores Lozano-Castello, Agustin Bueno-Lopez
APPLIED CATALYSIS B-ENVIRONMENTAL
(2018)
Article
Chemistry, Physical
Virginia Alcalde-Santiago, Esther Bailon-Garcia, Arantxa Davo-Quinonero, Dolores Lozano-Castello, Agustin Bueno-Lopez
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Chemistry, Physical
Virginia Alcalde-Santiago, Arantxa Davo-Quinonero, Dolores Lozano-Castello, Adrian Quindimil, Unai De-La-Torre, Benat Pereda-Ayo, Jose A. Gonzalez-Marcos, Juan R. Gonzalez-Velasco, Agustin Bueno-Lopez
Article
Engineering, Environmental
Arantxa Davo-Quinonero, Debora Sorolla-Rosario, Esther Bailon-Garcia, Dolores Lozano-Castello, Agustin Bueno-Lopez
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Chemistry, Applied
Adrian Quindimil, Unai De-La-Torre, Benat Pereda-Ayo, Arantxa Davo-Quinonero, Esther Bailon-Garcia, Dolores Lozano-Castello, Jose A. Gonzalez-Marcos, Agustin Bueno-Lopez, Juan R. Gonzalez-Velasco
Article
Chemistry, Physical
Gabriela Grzybek, Klaudia Ciura, Joanna Grybos, Paulina Indyka, Arantxa Davo-Quinonero, Dolores Lozano-Castello, Agustin Bueno-Lopez, Andrzej Kotarba, Zbigniew Sojka
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Chemistry, Physical
Virginia Alcalde-Santiago, Esther Bailon-Garcia, Arantxa Davo-Quinonero, Dolores Lozano-Castello, Agustin Bueno-Lopez
CATALYSIS SCIENCE & TECHNOLOGY
(2019)
Article
Energy & Fuels
Dina Ibrahim Abouelamaiem, Maria Jose Mostazo-Lopez, Guanjie He, Drasti Patel, Tobias P. Neville, Ivan P. Parkin, Dolores Lozano-Castello, Emilia Morallon, Diego Cazorla-Amoros, Ana Belen Jorge, Rongfang Wang, Shan Ji, Maria-Magdalena Titirici, Paul R. Shearing, Daniel J. L. Brett
JOURNAL OF ENERGY STORAGE
(2018)
Article
Chemistry, Physical
Arantxa Davo-Quinonero, Jorge Gonzalez-Mira, Dolores Lozano-Castello, Agustin Bueno-Lopez
Article
Chemistry, Physical
A. Davo-Quinonero, D. Lozano-Castello, A. Bueno-Lopez
APPLIED CATALYSIS B-ENVIRONMENTAL
(2017)
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)