Article
Energy & Fuels
Yangfan Chen, Jiangling Li, Wenxin Teng, Hangmi Wu, Weizao Liu, Shan Ren, Jian Yang, Qingcai Liu
Summary: Due to different applications requirements, binary or ternary metal oxide NH3-SCR catalysts with dual redox sites have been widely studied. The electronic interaction between the dual redox sites significantly affects the catalyst performance. CeO2-Fe2O3 composite catalysts with enhanced interface contact and electronic interactions were prepared. The activity tests and comprehensive characterizations showed the importance of interface contact and electronic interactions in NH3-SCR reaction.
Article
Chemistry, Physical
Jinfeng Li, Hao Liu, Qiuju Qin, Jiexuan Zhu, Bingxian Chu, Yuyang Sun, Donghai Mo, Lihui Dong, Bin Li
Summary: Active components play different roles in improving catalytic performance due to their different physicochemical properties. In this study, a series of SmCeMn/Ti catalysts with different metal components exposed on the outer surface were synthesized to study their catalytic roles for NH3-SCR. The results showed that Mn contributed more B-acid sites and Mn4+, facilitating NO conversion. Ce generated a large amount of Mn4+ through a strong redox reaction with Mn3+ and generated abundant oxygen vacancies during the reaction process due to its strong oxygen storage-release capacity, while Sm acted as a sacrifice site for electron transfer with Mn to improve sulfur resistance.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Chenglong Li, Zhitao Han, Yuqing Hu, Tingjun Liu, Xinxiang Pan
Summary: In this study, a series of tungsten-zirconium mixed binary oxides were synthesized as supports for Ce-0.4/WmZrOx catalysts. The promoting effect of W doping on the SCR performance of Ce-0.4/ZrO2 catalysts was investigated. The results showed that proper W doping significantly enhanced the catalytic performance and SO2 tolerance of Ce-0.4/ZrO2 catalysts.
Article
Engineering, Chemical
Xiaodi Li, Zhitao Han, Xinxin Wang, Shaolong Yang, Gang Liu, Yu Gao, Chenglong Li
Summary: The study significantly enhanced the surface acidity of CeO2/ZrO2 catalysts through acid treatment, promoting the removal efficiency of NO in NH3-SCR, especially with higher performance observed in catalysts treated with H2SO4. Acid-treated catalysts may follow both E-R and L-H mechanisms in the SCR reaction process.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Energy & Fuels
Xiaodi Li, Shan Ren, Lian Liu, Xiangdong Xing, Lin Chen, Jiangling Li, Jian Yang, Qingcai Liu
Summary: The deactivation of denitration catalysts by heavy metals is still a challenge in the practical application of selective catalytic reduction of NOx with NH3. In this study, a novel anti-poisoning strategy was proposed by designing a CeO2/ZrO2 catalyst supported by SO42-/ZrO2 superacid. The introduction of SO42-/ZrO2 significantly enhanced the catalytic performance, leading to high NOx removal efficiency throughout a wide temperature range.
Article
Engineering, Chemical
Haiyu Li, Zhiping Zhang, Yingying Li, Min Wei, Yue Bai, Xiaoyu Niu, Yujun Zhu
Summary: TiNb2O7 material with its shear structure and surface acidity is a good support for NH3-SCR catalysts. The key to achieving excellent NH3-SCR performance lies in increasing the acidity of the catalyst. In this study, catalysts with different amounts of CeO2 supported on TiNb2O7 were prepared, and 8%CeO2/TiNb2O7 exhibited good activity, selectivity, and resistance to SO2/H2O. Analytical techniques were employed to investigate the relationship between catalyst structure, surface properties, and performance. The results show that CeO2-TiNb2O7 interactions improve the redox ability and acidity of the catalyst by forming short-range ordered Cen+-O2--Nbn+ and Cen+-O2--Tin+ species.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Tengxiang Zhang, Yaqing Zhang, Ping Ning, Huimin Wang, Yanping Ma, Siyuan Xu, Mo Liu, Qiulin Zhang, Futing Xia
Summary: Iron-tungsten composite oxide catalysts were prepared using a no-water grinding method followed by calcination at different temperatures. The study found that catalysts prepared at low temperatures showed the greatest catalytic activity, while high-temperature calcination led to decreased catalytic properties. Additionally, catalysts calcined at 500 degrees Celsius exhibited the best catalytic performance due to the coexistence of surface defects and specific species, resulting in over 90% NOx conversion in the 220-500 degrees Celsius range.
APPLIED SURFACE SCIENCE
(2021)
Article
Energy & Fuels
Siru Lu, Lei Song, Changan Zhou, Ziyu Su, Guoqiang Shu, Kui Ma, Hairong Yue
Summary: Ce-PO43- catalyst shows superior hydrothermal stability and has the potential to replace commercial Cu-SSZ-13, providing a strategy to improve the hydrothermal stability of metal oxide SCR catalysts for the removal of NOx from vehicle emissions.
Article
Engineering, Environmental
Lin Zhu, Jie Yao, Gaofeng Ma, Ping Cao, Shiliang Wu, Zhaoying Li
Summary: Surface modifications of CeO2 with Fe2O3 and/or MoO3 can adjust SCR catalytic performance and SO2 resistance. Fe2O3 slightly improves low temperature SCR activity, while MoO3 significantly enhances NOx conversion. Different deactivation behaviors are observed at 250 degrees C for the four catalysts.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Applied
Wei Tan, Jin Wang, Yandi Cai, Lulu Li, Shaohua Xie, Fei Gao, Fudong Liu, Lin Dong
Summary: This study proposes a new strategy of Mo doping to improve the low-temperature SCR activity of CeSi2. A Mo-Ce-Si mixed-oxide catalyst was prepared by a simple co-precipitation method. Mo doping significantly enhances the NH3-SCR activity of CeSi2 and exhibits superior N2 selectivity and resistance to SO2/H2O poisoning.
Article
Engineering, Environmental
Xiaosheng Huang, Fang Dong, Guodong Zhang, Yan Guo, Zhicheng Tang
Summary: In this work, core-shell Ce@MnOx catalysts were prepared by hydrothermal treatment, improving redox capacity through the coexistence of Ce and Mn. Yolk-shell Ce@Mn@TiOx structures were constructed to enhance ammonia adsorption and protect active sites, showing excellent catalytic performance for NH3-SCR. The outer TiO2 shell enhanced ammonia adsorption, while the MnOx interlayer ensured efficient redox cycles during the process.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Jihene Arfaoui, Abdelhamid Ghorbel, Carolina Petitto, Gerard Delahay
Summary: Selective catalytic reduction of nitrogen oxide by ammonia was studied over new sulfate or tungsta modified CeO2-TiO2 aerogel catalysts. The incorporation of sulfate improved the dispersion of Ce species and generated new strong acid sites, while the addition of tungsta enhanced the surface oxygen activity and created new redox sites. Both modifications resulted in highly active catalysts for NO reduction.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Liang-Yi Lin, Tsung-Ta Hsieh, Ju-Chen Hsu, Yu-Chen Wang
Summary: A series of Mn-Fe mixed oxide (MnFeOx) supported on high-surface-area TiO2 (Tiov) with engineered Ti3+/oxygen vacancies was used for NH3-SCR of NO. The best catalyst, MnFe/Tiov(0.05)-1, showed excellent NH3-SCR activity (>99% conversion) at 60-260 degrees C and resistance to high H2O content (20 vol%). It also exhibited outstanding durability in the presence of H2O and SO2, while the conventional TiO2-supported catalyst (MnFe/Ti) experienced catalytic deactivation. Various characterization techniques confirmed the strengthened interactions between MnFeOx and Tiov supports.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Keke Kang, Wanxia Zhao, Jing Rong, Wen Luo, Lulu Long, Yang Chen, Xiaojiang Yao
Summary: In this study, a catalyst with superior catalytic performance and alkali resistance was prepared by loading FeZrCeTiOx on a TiO2 nanotube support and treating it with H2SO4.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Chenglong Li, Zhitao Han, Xinxin Wang, Yu Gao, Zhen Wang, Xinxiang Pan
Summary: This study investigates the effect of sulfuric acid treatment on the Ca resistance of CeO2 catalysts supported by ZrO2. The results demonstrate that the CeO2/ZrO2-S catalyst displays significantly better SCR activity and Ca resistance compared to the CeO2/ZrO2 catalyst. Characterization techniques such as BET, XRD, Raman, XPS, H-2-TPR, NH3-TPD, and in situ DRIFTS were employed to analyze the changes in structure and properties of the catalysts before and after Ca deactivation tests. The results indicate that the Ca poisoning in CeO2/ZrO2 catalysts is mainly caused by the decrease in surface area and acidity, loss of reducibility, and enhanced stabilization of adsorbed nitrate/nitrite species. The treatment of ZrO2 with sulfuric acid leads to an increase in surface area, highly-dispersed Ce species, inhibition of tetragonal to monoclinic phase transformation, improved redox properties, Ce3+ species ratio, total surface acidity (especially Bronsted acid sites), and adsorption of NH3 species. Furthermore, the SCR reactions via both Langmuir-Hinshelwood (L-H) and Eley-Rideal (E-R) mechanisms can still proceed effectively even after Ca poisoning in the CeO2/ZrO2-S catalysts.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Hongfei Ni, Yiwei Zhang, Chuhong Zong, Zhengbo Hou, Hang Song, Yong Chen, Xuesong Liu, Tengfei Xu, Yingjie Luo
Summary: In this study, new tropine-based functionalized acidic ionic liquids (FAILs) were synthesized and demonstrated excellent catalytic performance in the synthesis of aspirin. The ionic liquid [Trps][OTs] exhibited high yield and selectivity, proving its potential as an ideal green solvent for esterification reactions and a suitable substitute for traditional catalysts.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Yuying Jiao, Xiaokang Gu, Pengbo Zhai, Yi Wei, Wei Liu, Qian Chen, Zhilin Yang, Jinghan Zuo, Lei Wang, Tengfei Xu, Yongji Gong
Summary: In this work, Fe-N-C single-atom catalysts (SACs) anchored on three-dimensional open-pore carbon networks (3D SAFe) were fabricated using a NaCl template-assisted in situ pyrolysis technique. The 3D SAFe catalyst exhibited ultrahigh activity and durability, resulting in ZABs with excellent performance.
Article
Chemistry, Physical
Penghua Liang, Tengfei Xu, Kongjun Zhu, Yu Rao, Hongjuan Zheng, Meng Wu, Jiatao Chen, Jinsong Liu, Kang Yan, Jing Wang, Ruifeng Zhang
Summary: In this study, H2V3O8/MXene composites were successfully synthesized as the cathode for zinc-ion batteries, exhibiting excellent performance in terms of high discharge specific capacity, fast charge/discharge ability, and long-term lifespan. The synergistic effect between 2D MXene nanosheets and H2V3O8 improves electrical conductivity, enhances pseudocapacitance, and alleviates the volume change of H2V3O8 during the insertion/deinsertion process, resulting in high-rate and long cycle stability electrochemical performance.
ENERGY STORAGE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zhiyang Zheng, Tengfei Xu, Dominik Legut, Ruifeng Zhang
Summary: This paper proposes a scheme that combines high-throughput computations and machine learning algorithms to predict the stability and mechanical properties of B-N solids under ambient and high pressures. The results demonstrate the possibility of building high-efficient machine learning models and compact symbolic physical models with high precision for predicting the thermodynamic and mechanical properties of strong solids.
COMPUTATIONAL MATERIALS SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Yingjie Luo, Yiwei Zhang, Cimin Tao, Hongfei Ni, Xuesong Liu, Yong Chen, Yongjiang Wu, Hang Song, Tengfei Xu
Summary: In this study, a polymeric ionic liquid with excellent adsorption capacity for tea polyphenol epigallocatechin gallate (EGCG) was synthesized and optimized using L-proline as the anion. The adsorption process was characterized using dynamics and isothermal research, revealing a quasi-second-order kinetic equation and monolayer adsorption mechanism. Thermodynamic parameter analysis indicated that the adsorption process is endothermic and spontaneous. The results of molecular docking demonstrated the interaction mechanisms between EGCG and the ionic liquid. This study provides guidance for the synthesis of polymeric ionic liquids and optimization of adsorption conditions, with potential applications in component adsorption and purification.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Tiange Zhao, Fang Zhong, Shicheng Wang, Yingke Wang, Tengfei Xu, Yue Chen, Yiye Yu, Jiaxiang Guo, Zhen Wang, Jiancan Yu, Pingqi Gao
Summary: Broadband photodetection is important for various applications and 2D bismuth telluride (Bi2Te3) is a promising candidate. Large-scale Bi2Te3 flakes with controllable thickness are synthesized using H-2-assisted chemical vapor deposition, showing excellent broadband detection, high responsivity, and fast response time. This work also paves the way for the rapid growth of other novel large-scale 2D materials.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Kangjie Li, Ting He, Nan Guo, Tengfei Xu, Xiao Fu, Fang Wang, Hangyu Xu, Guohua Li, Shuning Liu, Ke Deng, Yunlong Xiao, Jinshui Miao, Weida Hu
Summary: This article introduces a semiconductor homojunction based on 2D materials, which is a promising candidate for optoelectronic logic devices. The homojunction is made from vertically stacked MoTe2/CuInP2S6/Au layers in a dual-floating gate transistor configuration. Through the band alignment between MoTe2 and CuInP2S6, the polarity of the MoTe2 homojunctions can be modulated by the floating gate, achieving logic gate XOR without the need for applied voltage. The devices also show anomalous photoresponse and optical memory behaviors, indicating their potential for fully light-actuated sensing capability in optoelectronic logic devices.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shengpan Peng, Ziran Ma, Jing Ma, Zhihua Han, Hongyan Wang, Baodong Wang, Feng Zhao, Ge Li
Summary: Heat distribution and good adhesion of washcoat play a critical role in improving catalytic activity and stability. Metal foam exhibits a high thermal conductivity coefficient compared with cordierite, and the in situ grown washcoat on metal substrates eliminates the problem of coating peeling. This study successfully prepares an aluminum foam monolith with vertically aligned Al2O3 nanowire array at ambient temperature in alkaline solution, and the Pt-loaded Al2O3 nanowire array shows good catalytic performance on C2H4 degradation.
Article
Biotechnology & Applied Microbiology
Chengyong He, Fei Xing, Xiaoli Zhao, Shifang Li, Binhui Zhan, Zhen Liu, Tengfei Xu, Dehang Gao, Zhenfei Dong, Hongqing Wang, Zhixiang Zhang
Summary: This study reveals the crucial role of coat protein (CP) of prunus necrotic ringspot virus (PNRSV) in the long-distance movement of the virus in cucumber. Furthermore, specific amino acid sequences are found to play a critical role in the spread of PNRSV in cucumber.
JOURNAL OF GENERAL VIROLOGY
(2023)
Article
Materials Science, Multidisciplinary
Wei Liu, Shishuai Du, Yuanyuan Shang, Can Yan, Jiaqi Chang, Tengfei Xu
Summary: The grinding effect and parameters optimization of zirconia ceramic for achieving high efficiency and precision grinding have been studied. Response surface experiments are designed to assess the effect of grinding parameters on grinding results. Multi-objective optimization is carried out for the integrated minimum of machining time and four grinding results, and the correctness of the optimization model is verified experimentally.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Multidisciplinary
Yiye Yu, Meng Peng, Fang Zhong, Zhen Wang, Xun Ge, Hao Chen, Jiaxiang Guo, Yang Wang, Yue Chen, Tengfei Xu, Tiange Zhao, Ting He, Kun Zhang, Feng Wu, Changqing Chen, Jiangnan Dai, Weida Hu
Summary: This research reports a two-dimensional (2D) material-based infrared photodetector with enhanced and broadened response by utilizing the synergistic effects of extrinsic photoconduction and photogating effect. The photodetector can detect infrared light up to 2 µm by extrinsic photoconduction and exhibits a responsivity of 100 mA W-1 under 1550 nm illumination. Furthermore, the ZrS3 infrared photodetectors with an oxide layer show a triple enhanced responsivity due to the photogating effect. This work provides a potential way to extend the response range and improve the responsivity for nanomaterial-based photodetectors at the same time.
MATERIALS HORIZONS
(2023)
Review
Chemistry, Multidisciplinary
Tiange Zhao, Jiaxiang Guo, Taotao Li, Zhen Wang, Meng Peng, Fang Zhong, Yue Chen, Yiye Yu, Tengfei Xu, Runzhang Xie, Pingqi Gao, Xinran Wang, Weida Hu
Summary: The fabrication of large-area two-dimensional (2D) materials is crucial for their industrial applications, and chemical vapor deposition (CVD) is a promising method for producing high-quality films at scale. Recent advances in epitaxial growth of large-area single-crystalline graphene, hexagonal boron nitride, and transition-metal dichalcogenides have emphasized the importance of substrate engineering in terms of lattice orientation, surface steps, and energy considerations. This review focuses on the current strategies and underlying mechanisms, and discusses future directions in epitaxial substrate engineering for wafer-scale integration of 2D materials in electronics and photonics.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Tengfei Xu, Zhaorui Liu, Dominik Legut, Ruifeng Zhang
Summary: The crystal structure of BC2N has been a topic of debate, but through evaluating the x-ray diffraction pattern, the (111) BC2N2x2 superlattice has been identified as the realistic structure. The strain-induced oscillations dominate the slip systems of R2u-BC2N, leading to its ultralow dislocation slip resistance. The extreme hardness of experimentally synthesized BC2N is attributed to nanocrystalline grains glued by interfacial amorphous carbon.
Article
Chemistry, Multidisciplinary
Huanchao Shen, Yingrui Geng, Hongfei Ni, Hui Wang, Jizhong Wu, Xianwei Hao, Jinxin Tie, Yingjie Luo, Tengfei Xu, Yong Chen, Xuesong Liu
Summary: This study proposed an instance transfer learning algorithm based on weighted extreme learning machine for constructing NIR quantitative analysis models for tobacco under different instruments. The results demonstrated the importance of ensemble learning and source domain samples in improving the models' generalization ability and prediction performance.
Article
Biology
Lingjiao Fan, Dan Song, Yingwei Khoo, Mengmeng Wu, Tengfei Xu, Xiaoli Zhao, Hongqing Wang
Summary: Coinfection of SMoV and SVBV inhibits the growth and development of strawberry plants, affecting photosynthesis, fruit quality, and antioxidant capacity.
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)