Article
Chemistry, Physical
Yuming Li, Xuezhi Yu, Qiyang Zhang, Vita A. Kondratenko, Yajun Wang, Guoqing Cui, Mingxia Zhou, Chunming Xu, Evgenii V. Kondratenko, Guiyuan Jiang
Summary: Vanadium-based catalysts supported on hexagonal mesoporous SiO2 (HMS) were prepared and their catalytic performance in the non-oxidative propane dehydrogenation to propylene (PDH) was investigated. The structure and catalytic activity of VOx species, as well as the reaction mechanism, were studied. The results showed that low-polyvanadate exhibited high catalytic activity and stability.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Fei Wang, Songda Li, Ruiyang You, Zhongkang Han, Wentao Yuan, Beien Zhu, Yi Gao, Hangsheng Yang, Yong Wang
Summary: MnOx-CeO2 catalysts demonstrate significant potential in the NH3 selective catalytic reduction of NOx (NH3-SCR) reaction below 300 degrees C. Through experimental and theoretical analyses, this study reveals that electron transfer between MnOx and CeO2 induces the formation of surface oxygen vacancies on CeO2, enabling the establishment of Mn-redox and Ce-redox cycles for the activation of NH3 and O2, respectively, thereby enhancing the catalytic performance at low temperatures. This work provides a mechanistic understanding of the synergy between MnOx and CeO2, which can guide the rational design of low-temperature NH3-SCR catalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Haojie Wang, Xiaomei Liu, Di Wu, Yang Zhao, Ning Li, Yang Li, Xiaobin Fan, Qing Xia, Fengbao Zhang, Wenchao Peng
Summary: Compared with traditional Fenton reaction, peroxymonosulfate based advanced oxidation processes (PMS-AOPs) are more effective in removing organic pollutants in wastewater over a wider pH range. This study demonstrated that selectively loading MnOx on monoclinic BiVO4 (110) or (040) facets through photo-deposition method improved the catalytic activity and charge separation, resulting in significantly enhanced degradation activities. The mechanism of MnOx/BiVO4-PMS-light system was proposed based on quenching experiments and chemical probe identifications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yifan Wang, Zhongqi Liu, Matthew P. Confer, Junhao Li, Ruigang Wang
Summary: In this study, CeO2 nanorods were chemically etched and transition metal oxides were loaded on the surface to prepare catalysts. Results showed that the etching process enhanced low-temperature reducibility and catalytic performance, and the effect of CO adsorption mode on CO oxidation activity was discussed.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Md Robayet Ahasan, Yifan Wang, Ruigang Wang
Summary: Gas adsorption-desorption processes on oxide supported metal catalysts are critical for understanding catalytic CO oxidation mechanism. This study investigates the relationship between support structure and catalytic activity of CuOx supported on SiO2 and CeO2 nanorods and nanocubes. It was found that both Cu+/Cu2+ redox pair and lattice oxygen of CeO2 from different crystal planes play important roles in CO oxidation. The CeO2 nanorods with high surface defects promote CO adsorption and oxidation, leading to high catalytic performance for CO oxidation.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Applied
Kai Shen, Mingxiang Jiang, Xinwei Yang, Weizhong Zhou, Qiguang Dai, Xingyi Wang, Li Wang, Yun Guo, Yanglong Guo, Wangcheng Zhan
Summary: The catalytic combustion of trichloroethylene (TCE) was studied using cerium-based catalysts, which exhibited surprising catalytic activity. MnOx was doped into CeO2 using a citric acid sol-gel method, and the effect of Mn content on the physicochemical properties and catalytic activities of MnOx-CeO2 mixed oxides was systematically investigated. The introduction of MnOx into CeO2 significantly improved the catalytic activity and reaction stability of the CeO2 catalyst, and the catalytic activity could be maintained for over 100 hours under an air atmosphere. Moreover, a possible reaction mechanism and catalytic cycle for the catalytic combustion of TCE over MnOx-CeO2 mixed oxide catalysts are proposed.
JOURNAL OF RARE EARTHS
(2023)
Article
Chemistry, Multidisciplinary
Leon Schumacher, Jakob Weyel, Christian Hess
Summary: In this study, the mechanism of propane oxidation and dehydrogenation over supported vanadia catalysts was investigated. Two different mechanisms for propene formation were identified, and the interaction between vanadia species and the ceria support was studied.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Applied
Runnong Yang, Zihan Gao, Ming Sun, Guangying Fu, Gao Cheng, Wuyuan Liu, Xiaobo Yang, Xiangyun Zhao, Lin Yu
Summary: The study has successfully designed a highly active VOx-MnOx/CeO2 material to meet the specific requirements of catalyst for selective catalytic reduction of NO with ammonia, achieving excellent activity and stability.
JOURNAL OF RARE EARTHS
(2021)
Article
Engineering, Environmental
Lin Chen, Shan Ren, Weizao Liu, Jie Yang, Zhichao Chen, Mingming Wang, Qingcai Liu
Summary: By doping different metal oxides and studying their effects on the low-temperature SCR activity of catalysts, it was found that the Zr-Mn/BC catalyst exhibited the best performance, including higher NO conversion rate and better resistance. Furthermore, Zr doping also influenced the reaction mechanism of the catalysts.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Energy & Fuels
Lijun Cheng, Songil Sin, Jiawei Ji, Shan Yang, Chong Tan, Zhiwen Gu, Wang Song, Chunkai Huang, Chuanzhi Sun, Changjin Tang, Lin Dong
Summary: By constructing MnOx-CeO2 catalysts with controlled dispersion and interface properties, the significant promotion effect of interfacial contact between CeO2 and crystalline Mn3O4 in NH3-SCR was revealed. The result of present study enriches our understanding on the synergism between MnOx and ceria in NH3-SCR.
Article
Chemistry, Physical
Anna Zabilska, Adam H. Clark, Davide Ferri, Maarten Nachtegaal, Oliver Kroecher, Olga Safonova
Summary: In situ X-ray absorption spectroscopy is a powerful technique for investigating catalysts, but intense X-ray irradiation can induce changes in metal species and corresponding XAS spectra. This study found X-ray induced photochemical reduction in catalysts and suggests approaches to mitigate this effect.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Environmental Sciences
Feng Lin, Qiulin Wang, Xiaoniu Huang, Jing Jin
Summary: Experimental examination of MnOx/TiO2 and MnOx-CeO2/TiO2 catalysts for the oxidative degradation of 1,2-dichorobenzene (o-DCBz) revealed that Ce addition and high temperature effectively promoted the resistance of MnOx/TiO2 catalyst to Cl poisoning. Meanwhile, Density functional theory (DFT) calculations showed that Cl atom prefers to anchor on surface oxygen vacancy (OV) rather than on top site of Mn atom, which hinders the dissociated adsorption of O-2 on surface OV and interrupts the regeneration of the surface reactive oxygen species.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Lu Hu, Nan Jiang, Bangfa Peng, Zhengyan Liu, Jie Li, Yan Wu
Summary: The combination of a multistage rod plasma reactor and post CeO2-MnOx catalysts is effective in treating dimethyl sulfide (DMS). CeO2-MnOx (1:1) catalyst shows higher catalytic activity compared to other catalysts, and the combination with dielectric barrier discharge can significantly improve DMS removal efficiency and CO2 selectivity. The specific surface area, redox properties, and oxygen mobility of the catalyst may play a key role in enhancing its performance.
Article
Engineering, Environmental
Shengpeng Mo, Jun Li, Riquan Liao, Peng Peng, Jingjing Li, Junliang Wu, Mingli Fu, Lei Liao, Taiming Shen, Qinglin Xie, Daiqi Ye
Summary: Oxygen vacancy engineering plays a vital role in efficient degradation of volatile organic compounds in nanomaterials. The Pt-0.15Ce-Mn catalyst demonstrates superior catalytic activity for toluene oxidation due to more oxygen vacancies, excellent redox ability, and well dispersion of Pt. Introduction of CeO2 NPs induces the generation of more oxygen vacancies and new structure defects, leading to lower formation energy of oxygen vacancy and boosting remarkable catalytic activity for deep toluene oxidation through a synergistic effect of dual oxygen vacancies.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Valery Muravev, Jerome F. M. Simons, Alexander Parastaev, Marcel A. Verheijen, Job J. C. Struijs, Nikolay Kosinov, Emiel J. M. Hensen
Summary: This study unveiled the rich structural dynamics of a conventional catalyst during CO oxidation, confirming the presence of different active intermediates at different temperatures. The results highlight the importance of establishing structure-activity relationships for technical catalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Ziyi Chen, Xiaomin Wu, Boyin Yang, Zhiwei Huang, Huazhen Shen, Guohua Jing
Summary: Submonolayer-supported catalysts based on 3DOM CeO(2) loaded with VOx-MnOx exhibit excellent activity for NH3-SCR, with the 5 wt% 3DOM VOx-MnOx/CeO2 catalyst showing the best catalytic performance achieving over 95% NO conversion at 250 degrees C.
Article
Energy & Fuels
Ying Zhang, Yilong Lin, Zhiwei Huang, Guohua Jing, Huawang Zhao, Xiaomin Wu, Shaowen Zhang
Summary: The pyrolysis of LDH precursors allows for the design of high-performance Cu-Mn-Al catalysts with synergistic functionality, showing improved benzene combustion activity. Among the catalysts tested, Cu0.5Mn1.5Al1-O exhibited the best catalytic performance due to the synergistic effect between CuOx and MnOx.
Article
Engineering, Environmental
Kexuan Yang, Bihong Lv, Huazhen Shen, Guohua Jing, Zuoming Zhou
Summary: Despite the benefits of pharmaceuticals on human health, their production leads to severe environmental pollution. This study focused on ciprofloxacin hydrochloride production and found that API synthesis had the largest environmental contribution, followed by galenic formulation and packaging. Various methods such as solvent replacement and switching to natural gas for electricity generation can help reduce the environmental impact of pharmaceutical production.
INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT
(2021)
Article
Engineering, Environmental
Huazhen Shen, Mengjia Lin, Lidong Wang, Zhiwei Huang, Xiaomin Wu, Xiaoqi Jiang, Qing Li, Cheng-Lung Chen, Jingxiang Zhao, Guohua Jing, Chung-shin Yuan
Summary: This study found that CeO2 loading is beneficial for the photocatalytic activity of TiO2, increasing the distribution of photoinduced electrons and holes on the surface and enhancing the photocatalytic removal efficiency of 7%CeTi for Hg-0. The effect of CeO2 depends on its stability on the TiO2 crystal planes. Surface engineering strategies for morphology-controlled photocatalysts are crucial for air pollution control technology.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Zhiwei Huang, Tao Ban, Ying Zhang, Lipeng Wang, Sufeng Guo, Chun-Ran Chang, Guohua Jing
Summary: Research shows that thermally stable silver (Ag) single-atom catalysts fabricated through a high-temperature self-assembly route exhibit significantly improved stability and activity in CO oxidation experiments compared to conventional catalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Ying Wu, Yiyuan Xing, Xiaodan Zhao, Zuoming Zhou, Guohua Jing
Summary: This study proposes a facile CoS-enhanced sulfite activation method for efficient abatement of organic contaminants by utilizing the superior electron transfer efficiency of CoS and the activation efficacy of Co(II) for sulfate radical (SO4 center dot-) production. Various parameters, co-existing anions, and water matrixes were investigated to evaluate their effects on iohexol abatement, while a possible mechanism was proposed based on multiple analytical techniques. The research highlights the contribution of sulfur conversion in the sulfite activation process and its potential application for organic contaminant removal.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Weixin Kong, Bihong Lv, Guohua Jing, Zuoming Zhou
Summary: This study proposed an efficient strategy for improving the regeneration process of biphasic absorbents activated by organic alcohols through choosing proton transfer as the object. Quantum chemical calculation predicted that organic alcohols, particularly Ethanol (EtOH), could promote proton transfer between CO2 product ion pairs, enhancing CO2 desorption. Activation by EtOH led to the conversion of carbamate into ethyl carbonate, facilitating CO2 release and reducing activation barriers, thus improving the regenerability of biphasic absorbents for CO2 capture.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Xiaoyi Gao, Xin Li, Siyi Cheng, Bihong Lv, Guohua Jing, Zuoming Zhou
Summary: The main challenges in the application of biphasic amine absorbent are the inconvenient separation of liquid-liquid biphasic and the clogging caused by solid-liquid mixture. A novel solid-liquid 'phase controllable' biphasic amine absorbent has been developed to address these issues.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Kaiwen Ni, Yuewang Peng, Yuting Wang, Zhiwei Huang, Huawang Zhao, Xiaomin Wu, Guohua Jing
Summary: The development of low-temperature SO2-tolerant catalysts for NOx reduction is a challenging task. In this study, a novel catalyst V2O5-MnO2/3D-CeO2 was successfully prepared and showed high resistance to SO2 in low-temperature SCR.
Article
Chemistry, Physical
Lipeng Wang, Zhiwei Huang, Sufeng Guo, Xiaomin Wu, Huazhen Shen, Huawang Zhao, Guohua Jing
Summary: Surface engineering plays a crucial role in heterogeneous catalysis. For Co3O4-based catalysts, the {110} surface has been identified as one of the most active surfaces. However, most commercially available Co3O4 nanocrystals are terminated by the {111} and {010} facets, which are thermodynamically stable but less active. This study presents a doping-assisted growth strategy to modulate the facet termination of Co3O4-based nanocatalysts. Theoretical calculations and experimental studies demonstrate that Mn doping into Co3O4 can lower the surface energy of {110} facets and promote the transformation of surface termination, leading to the formation of Mn-doped Co3O4 catalysts with fiber-like shapes and a large fraction of {110} and {010} surfaces exposed.
JOURNAL OF CATALYSIS
(2022)
Article
Engineering, Environmental
Pengyu Zhang, Xianfa Zhang, Xiaodan Zhao, Guohua Jing, Zuoming Zhou
Summary: Peracetic acid (PAA) is an efficient oxidant that, when combined with nanoscale zero-valent iron, shows promising results in the removal of tetracycline (TC). Factors such as the presence of humic acid, phosphate, and bicarbonate ions can inhibit the removal of TC. Nanoscale zero-valent iron exhibits good reusability and the predominant active radical for TC removal is identified as CH3C(O)OO center dot, generated through Fe (II) leakage. Formation of Fe (II)-TC complexes accelerates PAA decomposition and TC removal.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Shaodi Sun, Xiaomin Wu, Zhiwei Huang, Huazheng Shen, Huawang Zhao, Guohua Jing
Summary: In this study, defective two-dimensional (2D) TiO2 nanosheets were synthesized and Pt nanoclusters were successfully anchored through the strong metal-support interaction (SMSI), resulting in excellent activity and stability for room temperature oxidation of formaldehyde.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Qing Li, Shaowen Zhang, Wenjie Xia, Xiaoqi Jiang, Zhiwei Huang, Xiaomin Wu, Huawang Zhao, Chung-shin Yuan, Huazhen Shen, Guohua Jing
Summary: Formaldehyde (CHOH), a common volatile organic compound, has adverse effects on human health. This study explores the use of g-C3N4 quantum dots (QDs) decorated on TiO2(001) to enhance the photocatalytic activity for CHOH degradation. The chemical configuration and combination mode of g-C3N4 QDs/TiO2(001) were investigated, along with the transport mechanism of photoinduced carriers. Results show that g-C3N4 QDs significantly improve the photodegradation and mineralization efficiencies of CHOH compared to TiO2(001).
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Engineering, Chemical
Shaowen Zhang, Yilong Lin, Qing Li, Xiaoqi Jiang, Zhiwei Huang, Xiaomin Wu, Huawang Zhao, Guohua Jing, Huazhen Shen
Summary: This study presents a simple strategy of carbonization and nitrogen doping to modify MIL-101 and enhance its adsorption capacity for benzene. Both experimental and theoretical results demonstrate that N-containing functional groups have a strong interaction with benzene, with pyridinic-N showing the strongest adsorption capacity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Xiaoqi Jiang, Qing Li, Wenjie Xia, Zhiwei Huang, Xiaomin Wu, Huawang Zhao, Zhilei Guo, Weixin Kong, Chung-shin Yuan, Guohua Jing, Huazhen Shen
Summary: This study presents a facile strategy of using g-C3N4 as an anchor to load highly dispersed ultrasmall CeO2 clusters on g-C3N4/TiO2. The photocatalyst CeO2-g-C3N4/TiO2 demonstrates a much higher photooxidation efficiency for Hg-0 compared to other catalysts. The small CeO2 clusters are anchored via strong Ce-N coordination bonds, and a combined type II and Z-scheme transport paths accelerate the separation of photogenerated electron holes.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
