Article
Chemistry, Physical
Mariana Rocha, Clara Pereira, Cristina Freire
Summary: A method for fabricating TiO2-supported nano-Au and Ag catalysts with enhanced activity in nitroarenes reduction was presented by immobilizing metal NPs onto TiO2 through metal precursors adsorption and in situ metal cations reduction. The type of reducing agent used influenced the size, oxidation state, and loading of the grafted metal NPs, resulting in Au and Ag nanocomposites with different characteristics and catalytic performances in the reduction of 4-nitrophenol and 4-nitroaniline. Au/Ag-based nanocomposites prepared with NaBH4 and citric acid showed efficient catalytic activity with high substrate conversion rates under mild conditions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Yujie Liu, Haijun Zhou, Jinling Wang, Ding Yu, Zhaolei Li, Rui Liu
Summary: Core-shell nanoparticles (Fe3O4@PDA) wrapped with Ag were prepared using a simple and green synthesis method. The obtained nanoparticles showed excellent catalytic activity and selectivity, indicating their potential applications in various fields.
Article
Environmental Sciences
Karunamoorthy Saravanakumar, Velmurugan Shanmuga Priya, Vellaichamy Balakumar, Seenivasan Lakshmi Prabavathi, Velluchamy Muthuraj
Summary: We report an effective method for immobilizing noble metal nanoparticles on g-C3N4 nanosheets via ultrasonication. The Pd@g-C3N4 nanocomposite exhibits the best catalytic performance for the conversion of 4-nitrophenol to 4-aminophenol. The g-CN not only acts as a stabilizer, but also improves the stability of the noble metal nanoparticles.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Sila Jin, Eungyeong Park, Shuang Guo, Yeonju Park, Lei Chen, Young Mee Jung
Summary: The Au-decorated Fe3O4@TiO2 nanoparticles exhibit excellent photocatalytic and SERS activities, showing significant photolysis effects on methyl orange. They demonstrate more efficient catalysis than Fe3O4@TiO2 NPs, with the Au-decorated TiO2 having surface plasmon resonance effects.
Article
Environmental Sciences
Lely Ayu Ningsih, Masaaki Yoshida, Arisu Sakai, Kun-Yi Andrew Lin, Kevin C. W. Wu, Hepsiba Niruba Catherine, Tansir Ahamad, Chechia Hu
Summary: An Ag-loaded TiO2-SiO2-Fe3O4 sphere was prepared for the photo-assisted reduction of 4-NP, showing high activity and recyclability, making it a promising material for environmental remediation.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Ganyin Yuan, Jia Sun, Xiaohuan Sun, Jun Hu, Jie Han, Rong Guo
Summary: Dumbbell-like Au-Fe3O4 nanoparticles encapsulated in N-doped carbon shell were successfully synthesized and demonstrated high stability and enhanced activity in reducing 4-nitrophenol and achieving a 100% yield in benzhydrol oxidation reaction. The nanocatalysts also showed superior recyclability, laying the foundation for practical applications. The elaborate design of this work may lead to the discovery of novel nanocatalysts with superior catalytic performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Electrical & Electronic
Nurdan Kurnaz Yetim, Elvan Hasanoglu Ozkan
Summary: Fe3O4 magnetic nanoparticles were produced using co-precipitation method, with an Au-doped APTES shell, forming Fe3O4@SiO2/APTES-Au nanocomposites. The nanocomposites showed good magnetic properties and high catalytic activity for 4-NP reduction.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Saba Afzal, Nurhidayatullaili Muhd Julkapli, Lee Kian Mun
Summary: The paper synthesized and optimized TiO2/chitosan/Fe3O4 nanocomposites, with TCF2 composite showing the best photocatalytic activity, bandgap narrowing, and improved charge carrier separation. The larger crystallite size of TCF2 contributed to its enhanced optical properties and potential for >90% degradation of nitrophenols under solar light exposure.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Inorganic & Nuclear
Meng Gu, Dong Liu, Tao Ding, Xiaokang Liu, Tao Chen, Xinyi Shen, Tao Yao
Summary: Decorating Au nanoparticles onto ZrO2 improved the photocatalytic performance, achieving efficient and stable reduction of CO2 into CO and CH4 under simulated solar light. The enhanced visible-light absorption of Au/ZrO2, caused by localized surface plasmon resonance (LSPR), led to more efficient charge transport and electron-hole separation in the heterojunctions.
DALTON TRANSACTIONS
(2021)
Article
Engineering, Environmental
Ru Hu, Rui Xu, Zizhu Wang, Junyou Wang, Shenghu Zhou
Summary: In this study, Au nanoparticles were synthesized and encapsulated in hollow porous silica nanospheres (Au@HPSNs). The Au@HPSNs consisted of extremely small Au nanoclusters (-1.3 nm) enclosed in high specific surface area (-800 m2/g) HPSNs. The formation of PEI-PAA@SiO2 core-shell structures was achieved by using electrostatic attraction between poly(acrylic acid) (PAA) anions and protonated poly(ethylenimine) (PEI) in an ethanol-water system. The Au@HPSNs were obtained by soaking PEI-PAA@SiO2 in HAuCl4 solution and subsequent calcination. The Au@HPSNs exhibited highly efficient catalytic activity for 4-nitrophenol (4-NP) reduction with NaBH4, surpassing the current record for heterogeneous Au-based catalysts in 4-NP reduction. The enhanced performance of Au@HPSNs can be attributed to the ultra-fine Au nanoclusters and the small mass transfer hindrance with high specific surface area hollow porous silica.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Jia-Yin Lin, Jechan Lee, Wen Da Oh, Eilhann Kwon, Yu-Chih Tsai, Grzegorz Lisak, Songkeart Phattarapattamawong, Chechia Hu, Kun-Yi Andrew Lin
Summary: This study proposed a composite material that combines the advantages of macroscopic/porous supports and nanoscale functionality of MOFs. By covering copper foam with CoO nanoflowers and decorating with ZIF-67, a hierarchical 3Dstructured catalyst was formed, allowing for effective reduction of NCCs like 4-NP.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Chemical
Yan Chen, Shao-Chun Wu, Jiao-Jiao Han, Xi Yan, Xiao-Jing Guo, Wan-Zhong Lang
Summary: A Pd-decorated graphene oxide (Pd/GO) membrane was developed by reducing Pd2+ on GO nanosheets, which showed efficient catalytic activity for the reduction of 4-nitrophenol. The catalytic membrane achieved high conversion efficiency due to the proper distribution of Pd nanoparticles in the interlayer space of the GO membrane, allowing sufficient contact between 4-NP molecules and Pd NPs. The high catalytic efficiency of the Pd/GO membrane under high 4-NP concentration and continuous-flow catalysis makes it promising for efficient catalytic processes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Environmental Sciences
Fei Chen, Xinlong Yan, Xiaoyan Hu, Rui Feng, Tianbo Li, Xiaobing Li, Guofeng Zhao
Summary: In this study, copper hexacyanoferrate nanospheres decorated copper foams were synthesized and used as catalysts for the reduction of pnitrophenol and azo dyes. The catalyst calcinated at 200°C exhibited high catalytic activity and excellent reusability. The mechanism study revealed that fast electron transfer and enhanced adsorption contributed to the catalyst's enhanced performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Abdullah A. A. Manda, Khaled A. A. Elsayed, Shamsuddeen A. A. Haladu, Emre Cevik, Mansur B. B. Ibrahim, Q. A. Drmosh
Summary: Metal and metal oxides nanoparticles supported on polymer nanocomposites were fabricated and characterized. The catalytic performance of the nanocomposites in the reduction of 2-nitrophenol was evaluated, demonstrating excellent activity and stability of CAB/TiO2/Au nanocomposites.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Environmental Sciences
R. Suresh, N. S. Karthikeyan, Lalitha Gnanasekaran, Saravanan Rajendran, Matias Soto-Moscoso
Summary: CuO loaded g-C3N4 nanocomposites were prepared by a simple calcination method. The formation of CuO nanocrystals on g-C3N4 was confirmed by XRD, FTIR, and XPS analyses. The addition of CuO nanoparticles reduced the band gap and showed high catalytic efficiency in the reduction of 4-NP and MO.
Article
Multidisciplinary Sciences
Haifeng Yu, Huawei Zhu, Hongliang Jiang, Xiaozhi Su, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: A dual-track strategy of tantalum doping and cerium oxide coating is used to fully restrain the escape of lattice oxygen from Ni-rich cathodes in high-voltage regions, enhancing the performance and safety of lithium-ion batteries. The treated cathode exhibits high cyclic performance within the voltage range of 2.7-4.5 V.
NATIONAL SCIENCE REVIEW
(2023)
Article
Chemistry, Multidisciplinary
Jiechao Jiang, Zhengju Zhu, Ying He, Bismark Sarkodie, Wenyi Wang, Hao Jiang, Yanjie Hu, Chunzhong Li
Summary: Catalytic combustion is an important method to reduce toluene pollution, and improving the performance of catalysts is crucial. Oxygen vacancies play a key role in enhancing the catalytic combustion performance. By using flame spray pyrolysis (FSP), two different oxygen vacancy structures were synthesized and their effects on toluene catalytic combustion performance were evaluated. The closely contacted oxygen vacancies (cVo) exhibited enhanced oxygen activation capacity and significantly lower reaction temperatures compared to the separated oxygen vacancy (s-Vo) sample. The FSP synthesis strategy also provided excellent water resistance and high-temperature stability to the catalyst.
Article
Chemistry, Multidisciplinary
Jiahao Zhang, Jingyu Wang, Haijiao Zhang, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: Developing high-performance electrocatalysts is crucial for the future hydrogen economy. A hierarchically heterostructured Ni(OH)2/Fe-Ni2P electrocatalyst was developed to enhance the hydrogen evolution reaction during alkaline water electrolysis. This electrocatalyst showed improved catalytic activity, electrochemical stability, and efficient synergistic catalysis, making it a promising candidate for alkaline water splitting.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Applied
Haiyan Wang, Haowen Du, Hucheng Zhang, Songjie Meng, Zhansheng Lu, Hao Jiang, Chunzhong Li, Jianji Wang
Summary: This study presents the design of expanded graphite cohered by N, B bridge-doping carbon patches (NBEG) as an efficient anode for potassium-ion batteries (KIBs). The co-doping of B plays a crucial role in maximizing the doping-site utilization of N atoms, balancing the adsorption-diffusion kinetics, and promoting charge transfer. The designed NBEG exhibits a robust lamellar structure, suitable interlayer distance, and rich active sites, enabling rapid ion/electron transfer and high K-ion storage capacity.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Wu Wei, Zhihong Wang, Liyun Yao, Hao Jiang, Chunzhong Li
Summary: In this study, CeO2-x-coated LiNi0.9Co0.045Mn0.045Al0.01O2 was used to stabilize the lattice oxygen of Ni-rich and Co-poor cathodes, resulting in a reversible oxygen-storage protective layer and improved crystal and interface structure. The obtained cathode exhibited a high specific capacity of 223 mA h g(-1) at 0.1C and 140 mA h g(-1) even at 10C, with 96.7% capacity retention at 1C after 100 cycles in a coin-type half-cell. About 90.1% capacity retention could still be obtained at 1C after 300 cycles in a pouch-type full-cell. This work provides a viable method for stabilizing the lattice oxygen of Ni-rich and Co-poor cathodes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Nanoscience & Nanotechnology
Shengwei Yu, Liyuan Chen, Na Cheng, Jiyuan Lu, Liyuan Bi, Wenhui Zhang, Aiping Chen, Haibo Jiang, Chunzhong Li
Summary: Researchers synthesized Pt1.2Ni/C catalyst with excellent activity and long-term stability for oxygen reduction reaction (ORR), achieving a mass activity of 1.53 A/mgPt, which is 12 times higher than that of commercial Pt/C. The adsorption of abundant water on the Pt1.2Ni alloy surface weakens the adsorption of oxygen, contributing to the ORR performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Yating Wang, Ling Cheng, Wangxin Ge, Yihua Zhu, Jie Zhang, Rongzhen Chen, Ling Zhang, Yuhang Li, Chunzhong Li
Summary: Scientists have localized nanosized Cu2O on three different carbon-based substrates with different charge-promotion effects, and found that these effects can increase the faradaic efficiency (FE) for C2 products. Among them, positively charged boron-doped graphene (BG) has the highest FE, followed by negatively charged nitrogen-doped graphene (NG), and weakly negatively charged reduced graphene oxide (rGO) has the lowest FE.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yushuang Fang, Yu Fan, Kunchi Xie, Wangxin Ge, Yihua Zhu, Zhiwen Qi, Zhen Song, Hongliang Jiang, Chunzhong Li
Summary: Designing an efficient electrode-electrolyte interface for H2O2 electrosynthesis is challenging. However, adding dimethyl sulfoxide (DMSO) to the electrolyte can improve the selectivity and activity of H2O2 production. The formation of hydrogen bonds between DMSO and water at the electrode-electrolyte interface reduces water dissociation, leading to improved selectivity of H2O2 synthesis. This work highlights the importance of regulating the interfacial hydrogen-bond environment for enhancing electrochemical performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Tianyu Liu, Yaru Zheng, Caixia Hao, Wenqing Hong, Fengxuan Wang, Hao Jang, Yanjie Hu, Chunzhong Li
Summary: Enhanced output was achieved by designing oriented glass fibers within nano-porous SiO2 film, enabling effective harvesting of renewable energy through the water evaporation process. The ordered glass fibers improved power generation performance by promoting water flow and carrier movement, resulting in an induced open-circuit voltage of 1.4 V and an induced short-circuit current of 400 nA. This provides a performance improvement strategy for evaporation-induced generators. The generated voltage driven by evaporation was found to be related to humidity difference and water flow. The availability of raw materials and the simplicity of the fabrication process also enable easy scalability of the generators.
APPLIED MATERIALS TODAY
(2023)
Article
Chemistry, Multidisciplinary
Zhihong Wang, Wu Wei, Qiang Han, Huawei Zhu, Ling Chen, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: By regulating the precipitation rates of cations and the distributions of flow field, an elongated primary particles radially aligned Ni-rich cathode was synthesized using a microstructure engineering strategy. The high aspect ratio and favorable atomic arrangement of primary particles enable isotropic strain relaxation, greatly suppressing microcrack formation and propagation, and facilitating Li-ion diffusion. The modified cathode shows superior high-rate performance, long-cycle life, and thermal stability compared with conventional counterparts.
Article
Engineering, Chemical
Lei Dong, Wangxin Ge, Yu Fan, Wenfei Zhang, Hongliang Jiang, Yongqing Zhao, Chunzhong Li
Summary: Cu-based catalysts combined with CTAB as electrolyte additives were used to improve the formate selectivity and partial current density of CO2RR. The hydrophobic interface microenvironment was created by CTAB and disrupted the interaction between interfacial water and surface-adsorbed CO. This study provides a new perspective on controlling the microenvironment to enhance electrosynthesis performance.
Article
Chemistry, Multidisciplinary
Xiaoli Jiang, Lei Tang, Lei Dong, Xuedi Sheng, Wenfei Zhang, Zhen Liu, Jianhua Shen, Hongliang Jiang, Chunzhong Li
Summary: In this study, density functional theory (DFT) simulations were used to investigate the site isolation strategy in electrocatalytic selective hydrogenation of acetylene. The results showed that isolated Cu metal sites have higher energy barriers on overhydrogenation and C-C coupling reactions. Based on this, Cu single-atom catalysts highly dispersed on nitrogen-doped carbon matrix were developed and demonstrated high ethylene selectivity under high concentrations of acetylene. The superior performance was attributed to the weak adsorption of ethylene intermediates and highly energy barriers on C-C coupling at isolated sites, as confirmed by both DFT calculations and experimental results. This study provides a comprehensive understanding of the isolated sites inhibiting the side reactions in electrocatalytic acetylene semihydrogenation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Energy & Fuels
Yuhang Jiang, Yating Wang, Rongzhen Chen, Yuhang Li, Chunzhong Li
Summary: The use of bimetallic metal-organic frameworks (MOFs) as electrocatalysts for the carbon dioxide reduction reaction (CO2RR) has gained significant attention in the field of clean energy. Bimetallic MOFs exhibit synergistic effects and superior performance compared to monometallic MOFs, particularly in terms of product selectivity. This mini-review provides an overview of recent progress in the synthesis and design of bimetallic MOFs as CO2RR electrocatalysts. The importance of organic ligands, metal components, and MOF-derived materials is discussed, along with the advantages of utilizing two metal components. The challenges, gaps, and future perspectives of using bimetallic MOF materials for electrocatalytic CO2RR are also highlighted.
Article
Chemistry, Physical
Shengwei Yu, Jiyuan Lu, Liyuan Bi, Xiang Xie, Aiping Chen, Haibo Jiang, Chunzhong Li
Summary: This research demonstrates that enhancing the oxygen adsorption energy through tensile effect can significantly reduce the apparent activation energy and enhance the reactivity of the oxygen reduction reaction (ORR), providing new possibilities for the design and synthesis of ORR catalysts.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Multidisciplinary Sciences
Zhaolu Zhang, Kai Huang, Xinyue Qiu, Wangxin Ge, Xiaoling Yang, Yihua Zhu, Cheng Lian, Honglai Liu, Hongliang Jiang, Zhong Li
Summary: This work demonstrated a highly efficient electrochemical conversion of 5-hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan and developed a highly porous Cu-based catalyst with high BHMF selectivity and long-term stability. The electrochemically generated catalyst with abundant Cu/Cu2O interfaces was identified as the catalytically active phase for HMF conversion through structural characterizations.
FUNDAMENTAL RESEARCH
(2023)
