Journal of Colloid and Interface Science最新文献_第4页

Thin liquid films stabilized by plant proteins: Implications for foam stability.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-13 DOI: 10.1016/j.jcis.2024.12.070

Emmanouil Chatzigiannakis, Jack Yang, Leonard M C Sagis, Constantinos V Nikiforidis

{"title":"Thin liquid films stabilized by plant proteins: Implications for foam stability.","authors":"Emmanouil Chatzigiannakis, Jack Yang, Leonard M C Sagis, Constantinos V Nikiforidis","doi":"10.1016/j.jcis.2024.12.070","DOIUrl":"https://doi.org/10.1016/j.jcis.2024.12.070","url":null,"abstract":"Hypothesis: Plant-based proteins offer a sustainable solution for stabilizing multiphase food materials like edible foams and emulsions. However, challenges in understanding and engineering plant protein-stabilized interfaces persist, mostly because of the commonly poorer functionality and complex composition of the respective protein isolates. We hypothesize that part of the limited understanding is related to the lack of experimental data on the length-scale of the thin liquid film that separates two neighboring bubbles. By conducting such experiments, we aim to better understand the mechanisms by which plant proteins stabilize foams, a critical material in food applications.Experiments: In this study, we employ the dynamic thin film balance method to study the equilibrium properties and dynamic drainage behavior of foam thin liquid films stabilized by proteins derived from two main plant protein sources, yellow peas and rapeseeds, to investigate potential differences in film stabilization.Findings: Our thin film results provide new insights into the general foam stabilization mechanism of the two plant proteins. Most studies in this field focus on the impact of surface rheological parameters on stability of plant protein-based foam. We show that for such foams the half-life scales linearly with film thickness, the latter being closely related to the steric and electrostatic interactions developed across the respective films in equilibrium. Our study demonstrates the value of thin film studies in complementing traditional methods for studying protein-stabilized interfaces and facilitates an understanding of foam stabilization mechanisms that are universal among various surface-active species.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"408-419"},"PeriodicalIF":9.4,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to "A nanodrug loading indocyanine green and metformin dually alleviating tumor hypoxia for enhanced chemodynamic/sonodynamic therapy" [J. Colloid Interface Sci. 680(Part B) (2025) 341-355]. 吲哚菁绿和二甲双胍双重缓解肿瘤缺氧以增强化学动力学/声动力学疗法的纳米药物》[J. Colloid Interface Sci. 680(Part B) (2025) 341-355]的更正。

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-13 DOI: 10.1016/j.jcis.2024.12.009

Ziying Zhang, Weishen Zeng, Ning Guo, Mengnan Ran, Huixuan Gan, Quanxin Wu, Jiehua Xu, Hao Wang, Shisong Han, Yun Liu

引用次数: 0

Optimizing Cu doping on carbon nitrogen holly shell for enhanced selectivity towards formate in CO₂ reduction.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-12 DOI: 10.1016/j.jcis.2024.12.071

Yurui Xu, Xiao Liu, Minghui Jiang, Ning Li, Mingxue Su, Xin Du, Shiyu Li, Lei Lu, Suping Cui

{"title":"Optimizing Cu doping on carbon nitrogen holly shell for enhanced selectivity towards formate in CO2 reduction.","authors":"Yurui Xu, Xiao Liu, Minghui Jiang, Ning Li, Mingxue Su, Xin Du, Shiyu Li, Lei Lu, Suping Cui","doi":"10.1016/j.jcis.2024.12.071","DOIUrl":"https://doi.org/10.1016/j.jcis.2024.12.071","url":null,"abstract":"Electrochemical carbon dioxide reduction reaction (ECO2RR) to produce high value-added products is a promising and effective strategy for closing the artificial carbon cycle and achieving sustainable development of resource. However, catalyst structural reorganization and agglomeration caused by the reduction process will reduce the catalytic performance. In this study, a carbon nitrogen shell with cupper-doped (CNCu shell) catalyst was prepared using silicon dioxide (SiO2) as a template. The selectivity of the catalyst was controlled by precisely adjusting the form of Cu doping in the catalyst. When doped as single-atoms (CNCu2.5), the catalyst exhibited a Faraday efficiency of up to 85 % for formate at -0.9 V versus reversible hydrogen electrode (vs. RHE). In contrast, when both Cu clusters and single-atoms coexisted (CNCu25), the catalyst favored multi-carbon products, with a Faraday efficiency of 45 % for ethanol and 23 % for acetic acid. Density functional theory (DFT) calculations revealed the key mechanism for the difference in catalyst selectivity between the two doping forms. Cu single-atoms provided suitable binding energy to HCOO*, which increased the rate of CO2 conversion to formate, while the combination of Cu clusters and single-atoms increased the adsorption of HCOO*, raising the rate-determining step energy of the formate pathway, which favored multi-carbon products. This study fundamentally revealed how different doping forms of metals affect catalyst selectivity, providing new insights and strategies for developing superior metal-carbon-nitrogen (MCN) catalysts.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"347-357"},"PeriodicalIF":9.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Three-in-one strategy via anchored MoSe₂ for construct stable conversion-type Na-Se batteries: Chemisorption, catalytic conversion and stress dispersion.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-12 DOI: 10.1016/j.jcis.2024.12.080

Rui Wang, Bingxin Sun, Yan Dong, Wang Zhang, Qianhui Wu, Fang Guo, Chunsheng Li, Wenting Li, Ming Chen

{"title":"Three-in-one strategy via anchored MoSe2 for construct stable conversion-type Na-Se batteries: Chemisorption, catalytic conversion and stress dispersion.","authors":"Rui Wang, Bingxin Sun, Yan Dong, Wang Zhang, Qianhui Wu, Fang Guo, Chunsheng Li, Wenting Li, Ming Chen","doi":"10.1016/j.jcis.2024.12.080","DOIUrl":"https://doi.org/10.1016/j.jcis.2024.12.080","url":null,"abstract":"Conversion-type selenium cathodes are considered a highly promising alternative to sulfur cathodes due to their high conductivity and similar theoretical capacity. However, stress-diffusion and shuttle effects during the conversion process remain significant challenges that urgently need to be addressed. Herein, a composite matrix of MoSe2 anchored on the surface of N-doped hollow mesoporous carbon nanospheres (NHMCNS) was designed as a Se host to construct Se/C cathodes (Se/MoSe2@NHMCNS). Anchored MoSe2 successfully mitigated selenium loss by enhancing the chemisorption of polyselenides within the matrix. Meanwhile, polyselenides adsorbed on the Se/C cathode surface exhibit lower diffusion barriers and more negative Gibbs free energy during the conversion from chain polyselenides to Na2Se. MoSe2 accelerated the catalytic conversion of polyselenides to the final discharge products from both kinetic and thermodynamic perspectives. The huge stress induced by structural transformation during the conversion process is mitigated by MoSe2 synergistic carbon walls, which effectively maintain the structural stability of the cathode. Based on this three-in-one strategy, the sodium-selenium battery assembled with Se/MoSe2@NHMCNS exhibits stable cycling performance (400.6 mAh g-1 at 2C after 500 cycles), and the pouch battery also demonstrates good practical performance.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"499-508"},"PeriodicalIF":9.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-metallic surface-modified X-Cu (X = F, Cl, Br) metal catalysts for all-pH hydrogen evolution reaction with high performance. 非金属表面改性 X-Cu（X = F、Cl、Br）金属催化剂用于全 PH 高效氢气进化反应。

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-12 DOI: 10.1016/j.jcis.2024.12.078

Yao Tang, Chunyan Fan, Zehao Zang, Yahui Cheng, Lanlan Li, Xiaofei Yu, Xiaojing Yang, Zunming Lu, Xinghua Zhang, Hui Liu

{"title":"Non-metallic surface-modified X-Cu (X = F, Cl, Br) metal catalysts for all-pH hydrogen evolution reaction with high performance.","authors":"Yao Tang, Chunyan Fan, Zehao Zang, Yahui Cheng, Lanlan Li, Xiaofei Yu, Xiaojing Yang, Zunming Lu, Xinghua Zhang, Hui Liu","doi":"10.1016/j.jcis.2024.12.078","DOIUrl":"https://doi.org/10.1016/j.jcis.2024.12.078","url":null,"abstract":"Producing hydrogen through water electrolysis represents a clean and sustainable solution that is crucial in addressing the energy crisis. Nonetheless, the slow process of water electrolysis leads to large different kinetics for hydrogen evolution reaction (HER) under different pH solutions. Here, we designed surface modified metallic X-Cu catalysts (X = F, Cl, Br) with different non-metallic elements on nickel foam (NF) using an electrochemical deposition method, which realizes high performance for all-pH range. In 1.0 M KOH, 1.0 M phosphate-buffered saline (PBS), and 0.5 M H2SO4 media, F-Cu catalyst reaches 10 mA cm-2 with overpotentials of 56 mV, 110 mV, and 197 mV, respectively. Theoretical calculations disclose that the surface modification of F atom leads to redistribution of electrons, causing an upward shift of Cu's d-band center and enhanced adsorption ability for H2O and H intermediates (H*). This work offers novel perspectives for designing Cu-based catalysts with high HER performance, making them applicable across all-pH conditions.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"312-321"},"PeriodicalIF":9.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142833568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aluminium-sodium targeted co-doping to boost the electrochemical stability of full concentration gradient Ni-rich LiNi_0.80Co_0.05Mn_0.15O₂ cathodes.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-12 DOI: 10.1016/j.jcis.2024.12.072

Kaixu Yang, Zheng Chen, Chunliang Yang, Wei Shi, Yingchang Yang, Chaochuang Yin, Yun Yi, Jianxin Cao

{"title":"Aluminium-sodium targeted co-doping to boost the electrochemical stability of full concentration gradient Ni-rich LiNi0.80Co0.05Mn0.15O2 cathodes.","authors":"Kaixu Yang, Zheng Chen, Chunliang Yang, Wei Shi, Yingchang Yang, Chaochuang Yin, Yun Yi, Jianxin Cao","doi":"10.1016/j.jcis.2024.12.072","DOIUrl":"https://doi.org/10.1016/j.jcis.2024.12.072","url":null,"abstract":"Structural engineering of full concentration gradient (FCG) offers promising prospects for improving the interface and thermal stability of Ni-rich layered cathodes. However, the Ni content in the core of FCG cathode particle is higher than that on the surface, resulting in rapid structural deterioration at the particle core during cycling. To directionally strengthen the structural stability at the cores of FCG cathode particles, this study proposes a dual-cation targeted co-doping strategy that coordinates gradient Al doping with uniform Na doping. Al-Na co-doped FCG Li1-yNayNi0.80Co0.05Mn0.15-xAlxO2 (FNCM-AxNy) cathodes were successfully prepared through a combined in-situ and wet-chemistry method. As confirmed in experimental and theoretical studies, the particle core is structurally stabilized by the directional distribution of Al and Na within the particles, the formation of strong AlO bonds, and the provision of Na pillar ions in the bulk, which alleviate lattice shrinkage and structural collapse of the particles during the cycling process. Moreover, Al-Na co-doping enhances the diffusion kinetics by widening the ion- diffusion channels and reducing the diffusion barriers. Consequently, the capacity retention of the as-prepared FNCM-A0.1N1 cathode (co-doped with 0.1 mol% Al and 1 mol% Na) after 200 cycles at a rate of 1C reached 93 %, considerably outperforming both the pristine cathode (81 %) and the Al-doped cathode (87 %). Our study provides a novel idea to enhance the electrochemical stability by targeting strengthening the structural stability at the particle core of FCG Ni-rich layered cathodes.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"335-346"},"PeriodicalIF":9.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142845437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vacancy engineering in tungsten oxide nanofluidic membranes for high-efficiency light-driven ion transport. 用于高效光驱动离子传输的氧化钨纳米流体膜空位工程。

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-12 DOI: 10.1016/j.jcis.2024.12.075

Jiansheng Chen, Lina Wang, Komal Gola, Xinyi Zhang, Yue Guo, Jinhua Sun, Pan Jia, Jinming Zhou

{"title":"Vacancy engineering in tungsten oxide nanofluidic membranes for high-efficiency light-driven ion transport.","authors":"Jiansheng Chen, Lina Wang, Komal Gola, Xinyi Zhang, Yue Guo, Jinhua Sun, Pan Jia, Jinming Zhou","doi":"10.1016/j.jcis.2024.12.075","DOIUrl":"https://doi.org/10.1016/j.jcis.2024.12.075","url":null,"abstract":"Bioinspired light-driven ion transport has shown great potential in solar energy harvesting. To achieve efficiencies comparable to biological counterparts, effective coregulation of permselectivity and photoresponsivity is crucial. Herein, vacancy engineering has been proven to be a powerful strategy for considerably increasing the efficiency of light-driven ion transport in tungsten oxide (WO3-x) nanofluidic membranes by enhancing the negative surface charges and narrowing bandgaps. The enhancement in light-driven ion transport can be attributed to the efficient redistribution of surface charges due to the effective separation of photogenerated carriers. At an optimized vacancy concentration, WO2.66 membrane (WO2.66M) delivers an ionic photocurrent of 0.8 μA cm-2 in a 10-4 M KCl electrolyte, which is four times higher than that generated by the original WO2.85 membrane (WO2.85M). Following this strategy, uphill ion transport and photoenhanced osmotic energy conversion are successfully achieved in the WO3-x nanofluidic membrane system. This study shows that atomic vacancy engineering is an efficient approach to increase the light-driven ion transport dynamics of nanofluidics, providing an efficient strategy to enhance light-driven ion transport for potential applications in power harvesting and ion separation.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"241-249"},"PeriodicalIF":9.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic photoinduction of ferroptosis and apoptosis by a mitochondria-targeted iridium complex for bladder cancer therapy.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-12 DOI: 10.1016/j.jcis.2024.12.073

Jianguo Zheng, Aijing Zhang, Qinglong Du, Chi Li, Zhongwei Zhao, Luchao Li, Zhao Zhang, Xin Qin, Yi Li, Kang-Nan Wang, Nengwang Yu

{"title":"Synergistic photoinduction of ferroptosis and apoptosis by a mitochondria-targeted iridium complex for bladder cancer therapy.","authors":"Jianguo Zheng, Aijing Zhang, Qinglong Du, Chi Li, Zhongwei Zhao, Luchao Li, Zhao Zhang, Xin Qin, Yi Li, Kang-Nan Wang, Nengwang Yu","doi":"10.1016/j.jcis.2024.12.073","DOIUrl":"https://doi.org/10.1016/j.jcis.2024.12.073","url":null,"abstract":"Bladder cancer (BC) is one of the most common malignant tumors of the urinary system, and has a high recurrence rate and treatment resistance. Recent results indicate that mitochondrial metabolism influences the therapeutic outcomes of BC. Mitochondria-targeted photosensitizer (PS) is a promising anticancer therapeutic approach that may overcome the limitations of conventional BC treatments. Herein, two mitochondria-targeted iridium(III) PSs, Ir-Mito1 and Ir-Mito2, have been designed for BC treatment. Mechanically, Ir-Mito2 induced a decrease in mitochondrial membrane potential via white light activation, further triggering a reduction of the B-cell lymphoma 2 protein (Bcl-2)/Bcl-associated X protein (Bax) ratio and increment of cleaved caspase3. Meanwhile, the reduction of glutathione, deactivation of glutathione peroxidase 4 (GPX4), increase of acyl-CoA synthetase long chain family member 4 (ACSL4), and accumulation of lipid peroxide resulted in synergistically activating of ferroptosis and apoptosis. The results demonstrated that Ir-Mito2 exhibited excellent antitumor efficacy with superior biosafety in vivo. This work on light-activated and mitochondrial-targeted PS provides an innovative therapeutic platform for BC.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"420-431"},"PeriodicalIF":9.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of cerium-doped porous composite aerogel using cellulose nanocrystals for enhanced CO₂ capture and conversion.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-12 DOI: 10.1016/j.jcis.2024.11.240

Zihuai Xu, Xudong Zheng, Biao Ji, Sifan Bao, Jinfeng Mei, Zhouzhou Yang, Jian Rong, Zhongyu Li

{"title":"Development of cerium-doped porous composite aerogel using cellulose nanocrystals for enhanced CO2 capture and conversion.","authors":"Zihuai Xu, Xudong Zheng, Biao Ji, Sifan Bao, Jinfeng Mei, Zhouzhou Yang, Jian Rong, Zhongyu Li","doi":"10.1016/j.jcis.2024.11.240","DOIUrl":"https://doi.org/10.1016/j.jcis.2024.11.240","url":null,"abstract":"Reducing carbon dioxide (CO2) levels in the atmosphere is crucial for combating global warming. One effective strategy involves using porous materials for the combined processes of CO2 capture and catalytic conversion. In this study, we developed composite aerogel materials using cellulose nanocrystals (CNCs) as templates, doped with cerium oxide, to enhance CO2 capture and conversion. The CNCs possess a high specific surface area, which helps maintain the aerogel's internal structure, preventing the collapse of the silica aerogel during high-temperature calcination. This stability promotes CO2 diffusion within the material, aiding in its reduction. Additionally, during high-temperature calcination, cerium nitrate decomposes into cerium oxide and nitrogen oxides, creating a network of micro-nano composite pores on the material's surface. The porous carbon materials exhibit excellent CO2 adsorption capabilities, which are attributed to their rich and well-organized pore structures along with the synergistic effects of metal oxides. Our tests demonstrated that these materials have a high CO2 adsorption capacity of 3.18 mmol/g and are capable of converting CO2 into carbon monoxide and methane through photocatalytic reactions. This research offers new approaches for developing materials that integrate CO2 capture with conversion processes.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"322-334"},"PeriodicalIF":9.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142845440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oxygen vacancy mediated Pd-SA/TiO₂ single-atom catalyst created via ultra-fast one-step synthesis for enhanced CO₂ photoreduction.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2024-12-12 DOI: 10.1016/j.jcis.2024.12.083

Yaru Zheng, Wei Li, Jie Ju, Jiechao Jiang, Ling Zhang, Hao Jiang, Yanjie Hu, Chunzhong Li

{"title":"Oxygen vacancy mediated Pd-SA/TiO2 single-atom catalyst created via ultra-fast one-step synthesis for enhanced CO2 photoreduction.","authors":"Yaru Zheng, Wei Li, Jie Ju, Jiechao Jiang, Ling Zhang, Hao Jiang, Yanjie Hu, Chunzhong Li","doi":"10.1016/j.jcis.2024.12.083","DOIUrl":"https://doi.org/10.1016/j.jcis.2024.12.083","url":null,"abstract":"Single-atom catalysts (SACs) have garnered considerable interest in the field of heterogeneous catalysis. This study detail the synthesis of single-atom Pd catalysts supported on metal oxides using the Flame Spray Pyrolysis (FSP) method. This technique allows for the preparation of TiO2 with abundant oxygen vacancies by incorporating a hydrogen-rich atmosphere at high temperature (>2000 K) utilizing the quenching ring, which enhances the catalyst synthesis process. Additionally, the distribution and electronic structure of Pd were tailored in a hydrogen-rich atmosphere, which promoted the entrapment of Pd atoms within oxygen vacancies, preventing their aggregation into Pd nanoparticles and leading to the formation of Pd-SA/TiO2. Notably, Pd-SA/TiO2 achieves 92.51 % CO2-to-CO selectivity in the photocatalytic CO2 reduction reaction and exhibits an impressive catalytic activity of 56.84μmol g-1h-1. This research introduces a novel approach to modulate the anchoring process and optimize the microenvironment for single-atom metal synthesis, advancing the development of the-state-of-the-art SACs.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"280-290"},"PeriodicalIF":9.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142826977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0