Article
Energy & Fuels
Xiaobo Wang, Xinqi Zhang, Minmin Cao, Xuefeng Wang, Qanwen Gao, Cunbao Deng, Xin Huang
Summary: The influence of Pd-M-Al composite oxides on the catalytic combustion of methane was investigated, and it was found that the addition of La2O3 can greatly enhance the performance of the catalyst.
Article
Energy & Fuels
Xiaobo Wang, Xinqi Zhang, Minmin Cao, Xuefeng Wang, Qianwen Gao, Cunbao Deng, Xin Huang
Summary: A set of Pd-M-Al composite oxides with an ordered mesoporous structure were successfully prepared, and it was found that the addition of La2O3 can significantly improve the catalytic combustion performance of 1%Pd/Al2O3 catalyst.
Article
Chemistry, Physical
Ngoc Thang Tran, Thong Le Minh Pham, Trinh Duy Nguyen, Nguyen Van Cuong, Tan Ji Siang, Pham T. T. Phuong, A. A. Jalil, Quang Duc Truong, Sumaiya Zainal Abidin, Ftwi Y. Hagos, Sonil Nanda, Dai-Viet N. Vo
Summary: The study demonstrated that mesoporous gamma-alumina (gamma-Al2O3) synthesized as a support for Co catalyst showed excellent stability and high performance in methane dry reforming, indicating potential applications in the field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Energy & Fuels
Shuowen Guo, Yinghui Sun, Yanbin Zhang, Chenghu Zhang, Ying Li, Jie Bai
Summary: This article provides an overview of dry reforming of methane (DRM) reaction and its application in catalysts, with a focus on the development and limitations of NiCo bimetallic catalysts. The correlation between component properties and catalytic performances, the effect of preparation methods, and the reaction mechanisms of the catalysts are discussed. The deactivation issues caused by carbon deposition and bimetallic sintering are highlighted, and the role of promoters in overcoming these issues is emphasized.
Article
Chemistry, Applied
Farshad Gholizadeh, Ali Izadbakhsh, Jiankun Huang, Yan Zi-Feng
Summary: A series of Ni-based catalysts supported on cubic ordered mesoporous alumina (COMA) were synthesized and tested in dry reforming of methane reaction. The 15%NiO/COMA catalyst showed the best catalytic performance, with stability test results proving no activity loss after 210 hours, demonstrating excellent catalytic stability of the COMA structure in DRM reaction.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Shi-Ying Cao, Fan Ye, Ni-Ni Zhang, Yang-Long Guo, Yun Guo, Li Wang, Sheng Dai, Wang-Cheng Zhan
Summary: This study demonstrates the successful design of a bimetallic Ru-Pt catalyst for methane oxidation, which exhibits excellent stability and outstanding performance. The RuO2 species provides additional oxygen species to facilitate the redox cycle of the PtOx species, enhancing the catalyst's activity.
Article
Chemistry, Physical
Anh Ngoc T. Cao, Cham Q. Pham, Le Kim Hoang Pham, Dang Le Tri Nguyen, Pham T. T. Phuong, Thi Tuong Vi Tran, Van-Phuoc Nguyen, Thanh Binh Nguyen, Quyet Van Le, Ngoc Anh Nguyen, Tung M. Nguyen
Summary: The metal-support interface plays a crucial role in the dispersion and catalytic activity of catalysts. This study investigated the effect of cerium on cobalt catalyst supported on gamma-alumina and found that cerium promoted the dispersion and reducibility of cobalt, leading to improved conversion of methane and carbon dioxide.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Shengpan Peng, Ziran Ma, Jing Ma, Hongyan Wang, Jingyun Chen, Hui Wei, Yonglong Li, Zhimin Ao, Baodong Wang
Summary: The study investigates the effects of Pd/Al2O3 catalysts modified by different chemical elements (Mg, Si, Ce, and Zr) on methane catalytic combustion. It is found that tuning Pd dispersion and acidity on the catalyst's surface can alter activation energy and pre-exponential factors, thus enhancing the catalytic activity of methane.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Minseok Kim, Suhyun Lim, Chansong Kim, Chae-Ho Shin, Joon Hyun Baik, Young-Woong Suh
Summary: The study investigated a water-tolerant mesoporous silica-alumina catalyst (H-MSA), finding that it exhibited higher water tolerance than other common catalysts, along with better textural properties, supporting better stability of PdOx catalysts under wet conditions.
Article
Chemistry, Physical
Chang Liu, Ana M. Geer, Christopher Webber, Charles B. Musgrave, Shunyan Gu, Grayson Johnson, Diane A. Dickie, Sonia Chabbra, Alexander Schnegg, Hua Zhou, Cheng-Jun Sun, Sooyeon Hwang, William A. Goddard, Sen Zhang, T. Brent Gunnoe
Summary: In this study, two cobalt complexes with nitrogen atom donors were synthesized and investigated for their electrocatalytic water oxidation activity when supported on ordered mesoporous carbon. Results showed that 6-FP-Co-OMC-1 exhibited higher activity compared to 5-FP-Co-OMC-2, attributed to higher turnover frequency and better structural stability. The study also revealed that the ligand structure influences the catalytic activity of supported molecular catalysts in electrocatalytic water oxidation.
Article
Engineering, Environmental
Yanwei Sun, Guangyan Xu, Yingjie Wang, Wei Shi, Yunbo Yu, Hong He
Summary: In this study, a series of encapsulated structured catalysts with palladium nanoparticles confined in hydrophobic silicalite-2 were prepared, which showed high catalytic activity and long-term stability for methane oxidation under harsh conditions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Applied
Jing Li, Lingyun Dai, Yuxi Liu, Jiguang Deng, Lin Jing, Zhiquan Hou, Wenbo Pei, Xing Zhang, Hongxing Dai
Summary: Bimetallic compounds, specifically Ir and IrFex nanocrystals, loaded on mesoporous ceria were studied for their catalytic properties, with 0.59IrFe0.90/mesoCeO2 showing the best acetylene combustion performance. The samples exhibited good water and carbon dioxide resistance, with reversible partial deactivation upon SO2 exposure. The well-dispersed IrFe0.90 NCs and strong interaction with meso-CeO2 were key factors for the excellent catalytic performance.
Article
Chemistry, Applied
Yanan Diao, Haiyan Wang, Bingbing Chen, Li Wang, Xiao Zhang, Chuan Shi
Summary: Plasma-assisted dry reforming of methane is a promising method to produce syngas with unity H2/CO ratio. The design of efficient catalyst materials is of great importance to establish a match between CH4 and CO2 activation rates. Addition of La to the highly ordered mesoporous 10Ni5LaAl-one pot catalyst enhanced reducibility of Ni2+ species and promoted Ni dispersion, resulting in the highest catalytic activity and cokeresistance ability. Stability performance was achieved due to higher discharge power, efficient capacitance, and lower apparent activation energy of CO2 under plasma condition. A possible reaction mechanism was proposed for the 10Ni5LaAl-one pot catalyst during plasma-catalytic dry reforming process.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Qi Zhou, Xueqiang Qi, Yiguang Zhou, Junyi Li, Jinxia Jiang, Hanchao Li, Xiaobin Niu, Rui Wu, Jun Song Chen
Summary: Lithium-selenium (Li-Se) batteries have attracted widely attention due to their high volume specific capacity and good electronic conductivity of selenium. However, the rapid capacity fading, high volume changes and shuttle effect of lithium polyselenides (LiPSes) limit its further application. In this study, a zinc-cobalt bimetallic catalysts on nitrogen-doped 3D ordered porous carbon (ZnCo-NC) was constructed and applied as cathode for Li-Se batteries, showing significantly improved performance compared to single-metal counterparts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Kazumasa Murata, Takumi Shiotani, Junya Ohyama, Ryutaro Wakabayashi, Hirokazu Maruoka, Tatsuo Kimura, Atsushi Satsuma
Summary: The study found a significant correlation between the fraction of penta-coordinated Al3+ sites in the Al2O3 supports and the methane combustion activity of Pd nanoparticles, providing valuable insights for improving catalyst performance.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Shiwei Ma, Yunyun Huang, Ruoyu Hong, Xuesong Lu, Jianhua Li, Ying Zheng
Summary: The study focused on modifying zinc oxide (ZnO) nanoparticles using argon and hydrogen plasma, resulting in improved catalytic degradation performance on Rhodamine B. The treated ZnO exhibited significantly enhanced photocatalytic activity and stable reaction performance.
Article
Energy & Fuels
Siauw H. Ng, Nicole E. Heshka, Ying Zheng, Hao Ling, Jinsheng Wang, Qianqian Liu, Edward Little, Hui Wang, Fuchen Ding
Summary: The oil sands in Canada hold vast reserves, but face challenges in upgrading or diluting bitumen to produce gasoline and diesel. Research suggests that specific distillates in the oil sands have significant potential in improving pipeline efficiency and producing transportation fuels.
Article
Chemistry, Physical
Ke Wang, Jiangbo Lu, Ying Lu, Cher Hon Lau, Ying Zheng, Xianfeng Fan
Summary: In this study, CO2 photocatalytic reduction with H2O on oxygen-deficient Au/TiO2-x under UV or visible light was investigated. A high selectivity of 20% towards C2H6 was achieved, and the reaction pathway was proposed based on in-situ characterization results, demonstrating the essential role of oxygen vacancy in this process.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Jia Lin, Yelin Chen, Jiangli Huang, Guohui Cai, Yihong Xiao, Yingying Zhan, Ying Zheng
Summary: By tuning the phase structure of the supports, the performance of Pd/CZA catalysts can be improved. Calcining the supports at high temperatures can enhance the reducibility and oxygen mobility of the catalysts, leading to improved activity and stability. CZA-supported catalysts calcined at 1300 degrees Celsius exhibit excellent low-temperature activity, stability, and water resistance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Jia Lin, Xiaohua Chen, Yong Zheng, Yihong Xiao, Ying Zheng, Lilong Jiang
Summary: Improving the sulfur resistance of palladium-based catalysts is essential for the sustainable and efficient combustion of methane. In this study, the surface properties of the catalysts were adjusted to regulate the behavior of sulfur species on the active sites and supports. The results showed that the accumulation of sulfur species in the catalysts increased linearly with the surface basicity and was restrained in catalysts with high surface acidity. The zirconium-doped alumina supported palladium catalyst exhibited moderate surface acidity/basicity and showed excellent catalytic activity in the presence of SO2 and after regeneration. The enhanced sulfur resistance was attributed to the interaction between supports and sulfur species, the decomposition of zirconium sulfates, the suppression of surface/bulk aluminum sulfates formation, and the effective regeneration of PdO phase. The establishment of a quantitative correlation between the accumulated sulfur species, surface acidity/basicity, and catalytic performance provides a pathway for the development of sulfur-resistant palladium-based catalysts for oxidation reactions.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Chemical
Tianhua Zhang, Jie Zhu, Junjie Wang, Xuanbei Peng, Jinxiu Deng, Shiyao Wang, Yi Song, Yanliang Zhou, Jun Ni, Xiuyun Wang, Shijing Liang, Xingyi Lin, Ying Zheng, Lirong Zheng, Chak-tong Au, Lilong Jiang
Summary: Alloying Ru with rare-earth elements can modify its electronic structure and create new active sites. In this study, Ru-M (M = La or Y) alloys were formed for the first time, which exhibited outstanding performance in N2 activation for ammonia synthesis. The developed RuLa/HZ catalyst showed a stable NH3 synthesis rate without obvious deactivation under high temperature and pressure conditions.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Lingling Li, Ya-Fei Jiang, Tianhua Zhang, Hongfang Cai, Yanliang Zhou, Bingyu Lin, Xingyi Lin, Ying Zheng, Lirong Zheng, Xiuyun Wang, Cong-Qiao Xu, Chak-tong Au, Lilong Jiang, Jun Li
Summary: The study investigates the synthesis of Ru catalysts with different sizes, and finds that sub-nanometric Ru atomic clusters display superior performance and high turnover frequency in NH3 synthesis compared to nanoparticles.
Article
Nanoscience & Nanotechnology
Jiangli Huang, Jia Lin, Xiaohua Chen, Yong Zheng, Yihong Xiao, Ying Zheng
Summary: A facile strategy to improve the performance of SnO2-CeO2 supported palladium catalysts by tuning the composition of supports is proposed. The stable active PdO phase is formed and the catalytic activity is enhanced.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Moataz K. Abdrabou, Xue Han, Ying Zheng, Yimin Zeng, Sohrab Rohani
Summary: This study proposes a novel approach to reduce the viscosity of bitumen by using ionic surfactants at elevated upgrading temperatures. The results demonstrate that the cationic surfactant DTAB is the most effective, reducing the bitumen viscosity by 60% with only 0.25 wt% addition. Moreover, the addition of DTAB enhances the contents of saturates and aromatics, and alters the nanostructural properties of the bitumen's asphaltene.
ENERGY SCIENCE & ENGINEERING
(2022)
Review
Energy & Fuels
Majid D. Farahani, Yimin Zeng, Ying Zheng
Summary: This review summarizes the recent research on methanol synthesis from CO2 and H-2 using nonthermal plasma (NTP) catalysis. It discusses the mechanism of the reaction, the modification of reactor configurations, and the rationale behind catalyst design. The plasma-assisted approach offers advantages such as room temperature and atmospheric hydrogen pressure, and the potential to be powered by renewable electricity.
ENERGY SCIENCE & ENGINEERING
(2022)
Article
Engineering, Marine
Majid D. Farahani, Ying Zheng
Summary: Oil spills pose a significant threat to marine life, and the use of dispersants as a response method has been widely accepted. This review focuses on the design and development of chemical and non-chemical dispersant formulas to improve efficiency and environmental friendliness.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Jia Lin, Yalan Xu, Xiaohua Chen, Jiangli Huang, Hong Xu, Ying Zheng
Summary: Different dopants (yttrium, magnesium, zinc, nickel, or tin) with varying electron affinity were incorporated into alumina-supported palladium-cobalt catalysts, resulting in the tuning of microstructure, surface property, and electronic state of catalysts. The catalytic activity showed an inverted volcano trend with increased electronegativity of dopants, with magnesium providing additional electrons to enhance the Pd-Co interaction and improve catalytic performance, stability, and water-resistance.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Zhixiong Wang, Chenyao Tang, Jia Lin, Yong Zheng, Yihong Xiao, Ying Zheng, Lilong Jiang
Summary: Catalytic combustion is a promising method for reducing unburned methane emissions in the natural gas industry, and the key lies in the development of cost-effective and efficient catalysts. In this study, silicon component was introduced into nickel oxide by regulating the precipitation of nickel precursors and the hydrolysis of silicon precursors. The presence of SiO4 groups inhibited the growth and sintering of NiO grains while promoting the formation of active Ni2+ and adsorbed oxygen species for methane activation and oxidation. By tuning the multiple Ni-Si interactions, the catalytic activity and stability were significantly enhanced. Catalysts with abundant SiO4 groups and negligible nickel silicate exhibited higher catalytic activity, sinter-resistance, and water-resistance compared to NiO for methane combustion.
Article
Chemistry, Physical
Jing Lu, Jianfeng Gu, Oudong Hu, Yunhan Fu, Dezhan Ye, Xi Zhang, Ying Zheng, Linxi Hou, Huiyong Liu, Xiancai Jiang
Summary: Starch-based hydrogels have gained attention due to their biodegradability, but they often lack toughness, brittleness, and anti-freezing properties. By introducing glycerol and CaCl2, the mechanical, thermal, and conductive properties of the starch/PVA hydrogel can be improved, resulting in enhanced compatibility, flexibility, anti-freezing ability, and long-term stability.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Yelin Chen, Jia Lin, Xiaohua Chen, Siqin Fan, Ying Zheng
Summary: The study presents a strategy for enhancing the efficiency and stability of methane combustion by engineering metal oxide units through incorporating Mg into Pd/CexZr1-xO2-Al2O3 catalysts. The addition of Mg modifies the surface and structural properties of the catalyst, leading to the generation of oxygen vacancies and improved oxygen migration. This results in weaker Pd-O bonds, enhanced reducibility, and smoother conversion between Pd and PdO, ultimately benefiting methane oxidation.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
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)