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Mallik A, Patra S, Patra A, Pandey A, Hazra M, Sahoo GP. Isolation, structural characterization of (1 → 4), (1 → 6)-α-D-glucan from Dioscorea Alata and synthesis and catalytic activity studies of (1 → 4), (1 → 6)-α-D-glucan derived carbon dots. Carbohydr Res 2025; 549:109383. [PMID: 39813971 DOI: 10.1016/j.carres.2025.109383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2024] [Revised: 12/22/2024] [Accepted: 01/10/2025] [Indexed: 01/18/2025]
Abstract
Herein, a straightforward, productive protocol was adopted for the synthesis of carbon dots (CDs) by a simple microwave-assisted technique from (1 → 4), (1 → 6)-α-D-glucan polysaccharide (DAPS). The isolation and structural characterization of (1 → 4), (1 → 6)-α-D-glucan from the aqueous extracting of the Diascorea Alata was described here. The photo-physical and morphological studies of the prepared high quantum yield (27.70 %) CDs were systematically characterized using different analytical techniques: TEM, DLS, XPS, XRD, FT-IR, TCSPC, EDX, Fluorescence and UV-vis spectroscopy. In our study the carbon dots (CDs) obtained are non-toxic, highly water-soluble, spherical-shaped negatively charged particles with an average diameter of 3.28 nm. The photo-catalytic activity of carbon dots (CDs) was tested under the sunlight for photo-degradation of crystal violet (CV), a pollutant organic dye. Carbon dots (CDs) showed outstanding results regarding the photo degradation of CV (achieving 99.9 % degradation within 8 min) under sunlight.
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Affiliation(s)
- Arnab Mallik
- Department of Chemistry (UG and PG), Midnapore College (Autonomous), Midnapore, 721101, India
| | - Sukesh Patra
- Department of Chemistry (UG and PG), Midnapore College (Autonomous), Midnapore, 721101, India
| | - Animesh Patra
- Department of Chemistry (UG and PG), Midnapore College (Autonomous), Midnapore, 721101, India
| | - Akhil Pandey
- Department of Botany, Midnapore College (Autonomous), Midnapore, 721101, India
| | - Madhumita Hazra
- Department of Chemistry, PRMS Mahavidyalaya, Jamboni, Bankura, 722150, India
| | - Gobinda Prasad Sahoo
- Department of Chemistry (UG and PG), Midnapore College (Autonomous), Midnapore, 721101, India.
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2
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Zheng J, Li Z, Zhang D, Zhao X, Zhao Q, Wang Y. From single atoms to nanoparticles: size effect on Pd/C-catalyzed hydrogenation of 2,5-furandicarboxylic acid. Chem Commun (Camb) 2025; 61:1463-1466. [PMID: 39717997 DOI: 10.1039/d4cc05105j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2024]
Abstract
In this study, five catalysts with Pd particle sizes ranging from single atoms to nanoclusters and nanoparticles were synthesized by controlling the Pd loading amount and preparation methods, and applied in the hydrogenation of FDCA to THFDCA. Furthermore, kinetic models were established. Notably, the nanocluster catalyst demonstrated relatively high hydrogenation activity.
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Affiliation(s)
- Jiali Zheng
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China.
| | - Zhihui Li
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China.
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China.
| | - Dongsheng Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China.
| | - Xinqiang Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China.
| | - Qian Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China.
| | - Yanji Wang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300401, China.
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3
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Qu C, Shao X, Jia R, Song G, Shi D, Wang H, Wang J, An H. Hypoxia Reversion and STING Pathway Activation through Large Mesoporous Nanozyme for Near-Infrared-II Light Amplified Tumor Polymetallic-Immunotherapy. ACS NANO 2024; 18:22153-22171. [PMID: 39118372 DOI: 10.1021/acsnano.4c05483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
cGAS/STING pathway, which is highly related to tumor hypoxia, is considered as a potential target for remodeling the immunosuppressive microenvironment of solid tumors. Metal ions, such as Mn2+, activate the cGAS/STING pathway, but their efficacy in cancer therapy is limited by insufficient effect on immunogenic tumor cell death of a single ion. Here, we evaluate the association between tumor hypoxia and cGAS/STING inhibition and report a polymetallic-immunotherapy strategy based on large mesoporous trimetal-based nanozyme (AuPdRh) coordinated with Mn2+ (Mn2+@AuPdRh) to activate cGAS/STING signaling for robust adaptive antitumor immunity. Specifically, the inherent CAT-like activity of this polymetallic Mn2+@AuPdRh nanozyme decomposes the endogenous H2O2 into O2 to relieve tumor hypoxia induced suppression of cGAS/STING signaling. Moreover, the Mn2+@AuPdRh nanozyme displays a potent near-infrared-II photothermal effect and strong POD-mimic activity; and the generated hyperthermia and •OH radicals synergistically trigger immunogenic cell death in tumors, releasing abundant dsDNA, while the delivered Mn2+ augments the sensitivity of cGAS to dsDNA and activates the cGAS-STING pathway, thereby triggering downstream immunostimulatory signals to kill primary and distant metastatic tumors. Our study demonstrates the potential of metal-based nanozyme for STING-mediated tumor polymetallic-immunotherapy and may inspire the development of more effective strategies for cancer immunotherapy.
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Affiliation(s)
- Chang Qu
- Key Laboratory of Molecular Biophysics of Hebei Province, Institute of Biophysics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, 300401, Tianjin, People's Republic of China
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology, 300130, Tianjin, People's Republic of China
| | - Xinyue Shao
- Key Laboratory of Molecular Biophysics of Hebei Province, Institute of Biophysics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, 300401, Tianjin, People's Republic of China
| | - Ran Jia
- Key Laboratory of Molecular Biophysics of Hebei Province, Institute of Biophysics, School of Sciences, Hebei University of Technology, 300401, Tianjin, People's Republic of China
| | - Guoqiang Song
- Key Laboratory of Molecular Biophysics of Hebei Province, Institute of Biophysics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, 300401, Tianjin, People's Republic of China
| | - Donghong Shi
- Key Laboratory of Molecular Biophysics of Hebei Province, Institute of Biophysics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, 300401, Tianjin, People's Republic of China
| | - Hui Wang
- Key Laboratory of Molecular Biophysics of Hebei Province, Institute of Biophysics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, 300401, Tianjin, People's Republic of China
| | - Jinping Wang
- Key Laboratory of Molecular Biophysics of Hebei Province, Institute of Biophysics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, 300401, Tianjin, People's Republic of China
| | - Hailong An
- Key Laboratory of Molecular Biophysics of Hebei Province, Institute of Biophysics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, 300401, Tianjin, People's Republic of China
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4
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Li J, Yin H, Liu S, Xu C, Cai Z. Significantly enhanced catalytic performance of Pd nanocatalyst on AlOOH featuring abundant solid surface frustrated Lewis pair for improved hydrogen activation. RSC Adv 2024; 14:12593-12599. [PMID: 38638811 PMCID: PMC11024899 DOI: 10.1039/d4ra01852d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024] Open
Abstract
The catalytic performance of a catalyst is significantly influenced by its ability to activate hydrogen. Constructing frustrated Lewis pairs (FLPs) with the capacity for hydrogen dissociation on non-reducible supports remains a formidable challenge. Herein, we employed a straightforward method to synthesize a layered AlOOH featuring abundant OH defects suitable for constructing solid surface frustrated Lewis pair (ssFLP). The results indicated that the AlOOH-80 (synthesized at 80 °C) possessed an appropriate crystalline structure conducive to generating numerous OH defects, which facilitated the formation of ssFLP. This was further evidenced by the minimal water adsorption in the AlOOH-80, inversely correlated with the quantity of defects in the catalyst. As expected, the Pd loaded onto AlOOH (Pd/AlOOH-80) exhibited excellent catalytic activity in hydrogenation reactions, attributed to abundant defects available for constructing ssFLP. Remarkably, the Pd/AlOOH-80 catalyst, with larger-sized Pd nanoparticles, displayed notably superior activity compared to commercial Pd/Al2O3 and Pd/C, both featuring smaller-sized Pd nanoparticles. Evidently, under the influence of ssFLP, the size effect of Pd nanoparticles did not dominate, highlighting the pivotal role of ssFLP in enhancing catalytic performance. This catalyst also exhibited exceptionally high stability, indicating its potential for industrial applications.
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Affiliation(s)
- Junwei Li
- College of Chemistry, Chemical Engineering and Environment, Minnan NormalUniversity Zhangzhou 363000 China
| | - Hongshuai Yin
- College of Chemistry, Chemical Engineering and Environment, Minnan NormalUniversity Zhangzhou 363000 China
| | - Sisi Liu
- College of Chemistry, Chemical Engineering and Environment, Minnan NormalUniversity Zhangzhou 363000 China
| | - Chaofa Xu
- College of Chemistry, Chemical Engineering and Environment, Minnan NormalUniversity Zhangzhou 363000 China
- Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University Zhangzhou 363000 China
| | - Zhixiong Cai
- College of Chemistry, Chemical Engineering and Environment, Minnan NormalUniversity Zhangzhou 363000 China
- Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University Zhangzhou 363000 China
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5
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Yu J, Zhang X, Jiang R, He W, Xu M, Xu X, Xiang Q, Yin C, Xiang Z, Ma C, Liu Y, Li X, Lu C. Iron-Based Catalysts with Oxygen Vacancies Obtained by Facile Pyrolysis for Selective Hydrogenation of Nitrobenzene. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8603-8615. [PMID: 38332505 DOI: 10.1021/acsami.3c14353] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
The development of preparation strategies for iron-based catalysts with prominent catalytic activity, stability, and cost effectiveness is greatly significant for the field of catalytic hydrogenation but still remains challenging. Herein, a method for the preparation of iron-based catalysts by the simple pyrolysis of organometallic coordination polymers is described. The catalyst Fe@C-2 with sufficient oxygen vacancies obtained in specific coordination environment exhibited superior nitro hydrogenation performance, acid resistance, and reaction stability. Through solvent effect experiments, toxicity experiments, TPSR, and DFT calculations, it was determined that the superior activity of the catalyst was derived from the contribution of sufficient oxygen vacancies to hydrogen activation and the good adsorption ability of FeO on substrate molecules.
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Affiliation(s)
- Jiaxin Yu
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Xiyuan Zhang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Ruikun Jiang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Wei He
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Miaoqi Xu
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Xiaotian Xu
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Qiuyuan Xiang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Chunyu Yin
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Zhenli Xiang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Chaofan Ma
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Yi Liu
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Xiaonian Li
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Chunshan Lu
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
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6
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Li J, Suo W, Huang Y, Chen M, Ma H, Liu C, Zhang H, Liang K, Dong Z. Mesoporous α-Al 2O 3-supported PdCu bimetallic nanoparticle catalyst for the selective semi-hydrogenation of alkynes. J Colloid Interface Sci 2023; 652:1053-1062. [PMID: 37639927 DOI: 10.1016/j.jcis.2023.08.076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/02/2023] [Accepted: 08/11/2023] [Indexed: 08/31/2023]
Abstract
The selective hydrogenation of alkynes to alkenes is widely applied in the chemical industry; nevertheless, achieving highly selective hydrogenation with high catalytic activity is considerably challenging. Herein, ultrafine PdCu bimetallic nanoparticles encapsulated by high-surface-area mesoporous α-Al2O3 were prepared by high-temperature calcination-reduction using a porous organic framework (POF) as the template. As-obtained PdCu@α-Al2O3 exhibited a high selectivity of 95% for the semi-hydrogenation of phenylacetylene as a probe reaction under mild reaction conditions. The separation of continuous Pd atoms and modification of the Pd electronic state by Cu atoms suppressed β-hydride formation and alkene adsorption, contributing to high selectivity for the catalytic hydrogenation of alkynes. The catalytic activity was maintained after 7 cycles due to the strong interaction between the PdCu bimetallic nanoparticles and α-Al2O3 as well as the encapsulation effect of mesoporous α-Al2O3. Thus, the current work provides a facile strategy for fabricating high-surface-area mesoporous α-Al2O3-supported catalysts for industrial catalysis applications.
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Affiliation(s)
- Jianfeng Li
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Wenli Suo
- Lanzhou Petrochemical Company, PetroChina Company Limited, Lanzhou 730060, PR China
| | - Yuena Huang
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Minglin Chen
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou 730060, PR China
| | - Haowen Ma
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou 730060, PR China
| | - Chuang Liu
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Huan Zhang
- Lanzhou Petrochemical Company, PetroChina Company Limited, Lanzhou 730060, PR China
| | - Kun Liang
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China.
| | - Zhengping Dong
- State Key Laboratory of Applied Organic Chemistry, Laboratory of Special Function Materials and Structure Design of the Ministry of Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China.
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7
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Mhamane NB, Panchal S, Kolekar SK, Ranjan R, Salgaonkar KN, Burange AS, Nalajala N, Datar S, Gopinath CS. Possible handle for broadening the catalysis regime towards low temperatures: proof of concept and mechanistic studies with CO oxidation on surface modified Pd-TiO 2. Phys Chem Chem Phys 2023; 25:22040-22054. [PMID: 37555468 DOI: 10.1039/d3cp01122d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
The present work demonstrates the effect of temperature-dependent surface modification (SM) treatment and its influence in broadening the catalysis regime with Pd-TiO2 catalysts prepared by various methods. Due to SM induced changes, a shift in the onset of CO oxidation activity as well as broadening of the oxidation catalysis regime by 30 to 65 K to lower temperatures is observed compared to the temperature required for virgin counterparts. SM carried out at 523 K for PdPhoto-TiO2 exhibits the lowest onset (10% CO2 production - T10) and T100 for CO oxidation at 360 and 392 K, respectively, while its virgin counterpart shows T10 and T100 at 393 and 433 K, respectively. The SMd Pd-TiO2 catalysts were investigated using X-ray photoelectron spectroscopy (XPS), ultra-violet photoelectron spectroscopy (UPS) and atomic force microscopy (AFM). It is observed that diffusion of atomic oxygen into Pd-subsurfaces leads to SM and changes the nature of the surface significantly. These changes are demonstrated by work function (ϕ), surface potential, catalytic activity, and correlation among them. UPS results demonstrate the maximum increase in ϕ by 0.5 eV for PdPhoto-TiO2 after SM, compared to all other catalysts. XPS study shows a moderate to severe change in the oxidation states of Pd due to atomic oxygen diffusion into the subsurface layers of Pd. Kelvin probe force microscopy (KPFM) study also reveals corroborating evidence that the surface potential increases linearly with increasing temperature deployed for SM up to 523 K, followed by a marginal decrease at 573 K. The ϕ measured by KPFM and UPS shows a similar trend and correlates well with the changes in catalysis observed. Our results indicate that there is a strong correlation between surface physical and chemical properties, and ϕ changes could be considered as a global marker for chemical reactivity.
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Affiliation(s)
- Nitin B Mhamane
- Catalysis and Inorganic Chemistry Division, CSIR- National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411 008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Suresh Panchal
- Department of Applied Physics, Defence Institute of Advanced Technology (Deemed University), Girinagar, Pune 411025, India
| | - Sadhu K Kolekar
- Catalysis and Inorganic Chemistry Division, CSIR- National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411 008, India.
| | - Ravi Ranjan
- Catalysis and Inorganic Chemistry Division, CSIR- National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411 008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Kranti N Salgaonkar
- Catalysis and Inorganic Chemistry Division, CSIR- National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411 008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Anand S Burange
- Catalysis and Inorganic Chemistry Division, CSIR- National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411 008, India.
- Department of Chemistry, John Wilson Education Society's Wilson College (Autonomous), Chowpatty, Mumbai, 400 007, India
| | - Naresh Nalajala
- Catalysis and Inorganic Chemistry Division, CSIR- National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411 008, India.
| | - Suwarna Datar
- Department of Applied Physics, Defence Institute of Advanced Technology (Deemed University), Girinagar, Pune 411025, India
| | - Chinnakonda S Gopinath
- Catalysis and Inorganic Chemistry Division, CSIR- National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411 008, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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8
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Yuan E, Wang C, Wu C, Shi G, Jian P, Hou X. Constructing hierarchical structures of Pd catalysts to realize reaction pathway regulation of furfural hydroconversion. J Catal 2023. [DOI: 10.1016/j.jcat.2023.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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9
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Duan M, He D, Ding Y, Sun J, Jiang P, Zhou G. Low loading Pt on TiO
2
for the ultra‐selective hydrogenation of chloronitrobenzenes to chloroanilines. ChemistrySelect 2023. [DOI: 10.1002/slct.202204430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mingyu Duan
- Key Lab of Green Synthesis and Applications of Chongqing College of Chemistry Chongqing Normal University Chongqing 401331 China
| | - Daiping He
- Key Lab of Green Synthesis and Applications of Chongqing College of Chemistry Chongqing Normal University Chongqing 401331 China
| | - Yufang Ding
- Key Lab of Green Synthesis and Applications of Chongqing College of Chemistry Chongqing Normal University Chongqing 401331 China
| | - Junli Sun
- Key Lab of Green Synthesis and Applications of Chongqing College of Chemistry Chongqing Normal University Chongqing 401331 China
| | - Ping Jiang
- Key Lab of Green Synthesis and Applications of Chongqing College of Chemistry Chongqing Normal University Chongqing 401331 China
| | - Gongbing Zhou
- Key Lab of Green Synthesis and Applications of Chongqing College of Chemistry Chongqing Normal University Chongqing 401331 China
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10
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Conjugated dual size effect of core-shell particles synergizes bimetallic catalysis. Nat Commun 2023; 14:530. [PMID: 36725854 PMCID: PMC9892500 DOI: 10.1038/s41467-023-36147-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 01/17/2023] [Indexed: 02/03/2023] Open
Abstract
Core-shell bimetallic nanocatalysts have attracted long-standing attention in heterogeneous catalysis. Tailoring both the core size and shell thickness to the dedicated geometrical and electronic properties for high catalytic reactivity is important but challenging. Here, taking Au@Pd core-shell catalysts as an example, we disclose by theory that a large size of Au core with a two monolayer of Pd shell is vital to eliminate undesired lattice contractions and ligand destabilizations for optimum benzyl alcohol adsorption. A set of Au@Pd/SiO2 catalysts with various core sizes and shell thicknesses are precisely fabricated. In the benzyl alcohol oxidation reaction, we find that the activity increases monotonically with the core size but varies nonmontonically with the shell thickness, where a record-high activity is achieved on a Au@Pd catalyst with a large core size of 6.8 nm and a shell thickness of ~2-3 monolayers. These findings highlight the conjugated dual particle size effect in bimetallic catalysis.
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11
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ZIF-8 derived N-doped porous carbon confined ultrafine PdNi bimetallic nanoparticles for semi-hydrogenation of alkynes. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2022.112865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Li X, Tan Y, Liu Z, Su J, Xiao Y, Qiao B, Ding Y. NiOx-promoted Cu-based catalysts supported on AlSBA-15 for chemoselective hydrogenation of nitroarenes. J Catal 2022. [DOI: 10.1016/j.jcat.2022.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Zhang Q, Liao X, Liu S, Wang H, Zhang Y, Zhao Y. Tuning Particle Sizes and Active Sites of Ni/CeO2 Catalysts and Their Influence on Maleic Anhydride Hydrogenation. NANOMATERIALS 2022; 12:nano12132156. [PMID: 35807992 PMCID: PMC9268467 DOI: 10.3390/nano12132156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 02/01/2023]
Abstract
Supported metal catalysts are widely used in industrial processes, and the particle size of the active metal plays a key role in determining the catalytic activity. Herein, CeO2-supported Ni catalysts with different Ni loading and particle size were prepared by the impregnation method, and the hydrogenation performance of maleic anhydride (MA) over the Ni/CeO2 catalysts was investigated deeply. It was found that changes in Ni loading causes changes in metal particle size and active sites, which significantly affected the conversion and selectivity of MAH reaction. The conversion of MA reached the maximum at about 17.5 Ni loading compared with other contents of Ni loading because of its proper particle size and active sites. In addition, the effects of Ni grain size, surface oxygen vacancy, and Ni–CeO2 interaction on MAH were investigated in detail, and the possible mechanism for MAH over Ni/CeO2 catalysts was deduced. This work greatly deepens the fundamental understanding of Ni loading and size regimes over Ni/CeO2 catalysts for the hydrogenation of MA and provides a theoretical and experimental basis for the preparation of high-activity catalysts for MAH.
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Affiliation(s)
| | | | | | - Hao Wang
- Correspondence: (H.W.); (Y.Z.); (Y.Z.)
| | - Yin Zhang
- Correspondence: (H.W.); (Y.Z.); (Y.Z.)
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14
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Platinum clusters anchored on sulfur-doped ordered mesoporous carbon for chemoselective hydrogenation of halogenated nitroarenes. J Colloid Interface Sci 2022; 625:640-650. [PMID: 35764044 DOI: 10.1016/j.jcis.2022.06.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/29/2022] [Accepted: 06/11/2022] [Indexed: 11/20/2022]
Abstract
Chemoselective hydrogenation of unsaturated organic compounds is a significant research topic in the catalysis field. Herein, a sulfur-doped ordered mesoporous carbon (SMC) material was prepared to anchor ultrafine platinum (Pt) clusters for the chemoselective hydrogenation of halogenated nitroarenes. The confinement effect of the ordered pores and the strong metal-support interaction caused by Pt clusters and sulfur atoms, efficiently suppress the aggregation and regulate the electronic states of the ultrafine Pt clusters. Thus, the hydrogenation of parachloronitrobenzene (p-CNB) shows high selectivity catalyzed by the ultrafine Pt clusters with electron-rich states. Meanwhile, the catalytic performance of the hydrogenation reaction catalyzed by Pt/SMC is capable of being maintained after at least 5 cycles, and the catalytic universality can also be applied to different halogenated nitroarenes hydrogenation. Therefore, this study may promote the research into the construction of noble metal-based catalysts for chemoselective hydrogenation reactions in green and sustainable chemical processes.
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15
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Ma K, Liao W, Shi W, Xu F, Zhou Y, Tang C, Lu J, Shen W, Zhang Z. Ceria-supported Pd catalysts with different size regimes ranging from single atoms to nanoparticles for the oxidation of CO. J Catal 2022. [DOI: 10.1016/j.jcat.2022.01.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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16
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Mironenko RM, Likholobov VA, Belskaya OB. Nanoglobular carbon and palladium - carbon catalysts for liquid-phase hydrogenation of organic compounds. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Zhan X, Zhu H, Ma H, Hu X, Xie Y, Guo D, Chen M, Ma P, Sun L, Wang WD, Dong Z. Ultrafine PdCo bimetallic nanoclusters confined in N-doped porous carbon for the efficient semi-hydrogenation of alkynes. Dalton Trans 2022; 51:16361-16370. [DOI: 10.1039/d2dt02765h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultrafine PdCo bimetallic nanoclusters with Co atom-modified Pd active sites were highly dispersed and confined in an m-NC material for selective semi-hydrogenation of alkynes to alkenes.
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Affiliation(s)
- Xuecheng Zhan
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou, 730060, PR China
| | - Hanghang Zhu
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
| | - Haowen Ma
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou, 730060, PR China
| | - Xiaoli Hu
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou, 730060, PR China
| | - Yuan Xie
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou, 730060, PR China
| | - Dajiang Guo
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou, 730060, PR China
| | - Minglin Chen
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou, 730060, PR China
| | - Ping Ma
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou, 730060, PR China
| | - Liming Sun
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina Company Limited, Lanzhou, 730060, PR China
| | - Wei David Wang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
| | - Zhengping Dong
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
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18
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Wang K, Zong Z, Yan Y, Xia Z, Wang D, Wu S. Facile and template-free synthesis of porous carbon modified with FeOx for transfer hydrogenation of nitroarenes. NEW J CHEM 2022. [DOI: 10.1039/d2nj00064d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Porous carbon modified with FeOx was developed using an in situ activation method for transfer hydrogenation of nitroarenes.
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Affiliation(s)
- Kunyu Wang
- School of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, Zhejiang, China
| | - Zhipeng Zong
- School of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, Zhejiang, China
| | - Yao Yan
- Fujian Key Laboratory of Electrochemcial Energy Storage Materials, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350116, China
| | - Zhijun Xia
- School of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, Zhejiang, China
| | - Dehua Wang
- School of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, Zhejiang, China
| | - Shuchang Wu
- School of Pharmaceutical and Materials Engineering, Taizhou University, Taizhou 318000, Zhejiang, China
- Fujian Key Laboratory of Electrochemcial Energy Storage Materials, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350116, China
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19
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Morisse CG, McCullagh AM, Campbell JW, How C, MacLaren DA, Carr RH, Mitchell CJ, Lennon D. Toward High Selectivity Aniline Synthesis Catalysis at Elevated Temperatures. Ind Eng Chem Res 2021; 60:17917-17927. [PMID: 35115738 PMCID: PMC8802303 DOI: 10.1021/acs.iecr.1c03695] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/09/2021] [Accepted: 11/16/2021] [Indexed: 11/28/2022]
Abstract
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In
connection with an initiative to enhance heat recovery from
the large-scale operation of a heterogeneously catalyzed nitrobenzene
hydrogenation process to produce aniline, it is necessary to operate
the process at elevated temperatures (>100 °C), a condition
that
can compromise aniline selectivity. Alumina-supported palladium catalysts
are selected as candidate materials that can provide sustained aniline
yields at elevated temperatures. Two Pd/Al2O3 catalysts are examined that possess comparable mean Pd particle
sizes (∼5 nm) for different Pd loading: 5 wt % Pd/Al2O3 and 0.3 wt % Pd/Al2O3. The higher
Pd loading sample represents a reference catalyst for which the Pd
crystallite morphology has previously been established. The lower
Pd loading technical catalyst more closely corresponds to industrial
specifications. The morphology of the Pd crystallites of the 0.3 wt
% Pd/Al2O3 sample is explored by means of temperature-programmed
infrared spectroscopy of chemisorbed CO. Reaction testing over the
range of 60–180 °C shows effectively complete nitrobenzene
conversion for both catalysts but with distinction in their selectivity
profiles. The low loading catalyst is favored as it maximizes aniline
selectivity and avoids the formation of overhydrogenated products.
A plot of aniline yield as a function of WHSV for the 0.3 wt % Pd/Al2O3 catalyst at 100 °C yields a “volcano”
like curve, indicating aniline selectivity to be sensitive to residence
time. These observations are brought together to provide an indication
of an aniline synthesis catalyst specification suited to a unit operation
equipped for enhanced heat transfer.
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Affiliation(s)
- Clément G.A. Morisse
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, U.K
| | | | - James W. Campbell
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Colin How
- School of Physics and Astronomy, Kelvin Building, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Donald A. MacLaren
- School of Physics and Astronomy, Kelvin Building, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Robert H. Carr
- Huntsman Polyurethanes, Everslaan 45, 3078 Everberg, Belgium
| | - Chris J. Mitchell
- SABIC UK Petrochemicals Ltd., The Wilton Centre, Redcar TS10 4RF, U.K
| | - David Lennon
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, U.K
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