Article
Chemistry, Physical
Weiyi Jiang, Yang An, Zeyan Wang, Xiaolei Bao, Liren Zheng, Hefeng Cheng, Yuanyuan Liu, Zhaoke Zheng, Ying Dai, Baibiao Huang, Minrui Wang, Peng Wang
Summary: A simple method to introduce stress into the BiVO4 photoanode has been developed, which improves its photoelectrochemical properties by causing distortion in the crystal structure. The new photoanode exhibits nearly double the surface photopotential and significantly higher photocurrent density compared to the original photoanode, especially at elevated temperatures.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Materials Science, Multidisciplinary
Piyali Chatterjee, Amit K. Chakraborty
Summary: In this study, a facile surface treatment method using Fe2+ ions was demonstrated to enhance the photo-electrochemical water oxidation of nanostructured tungsten oxide (WO3) film. The optimized WO3 film with a Fe:W ratio of -1:25 showed a 3 times higher and more stable photocurrent under back illumination compared to untreated WO3, indicating the success of the surface treatment. The improved performance was attributed to the enhanced charge transfer process at the interface, resulting in the reduction of unwanted recombination.
Article
Chemistry, Physical
Jiajia Cai, Liangcheng Xu, Xiangxuan Tang, Lingna Kong, Jianmin Wang, Ruifei Wang, Xiuling Li, Qian Xie, Keke Mao, Haijun Pan
Summary: This study presents a two-step hydrothermal method to prepare low-valent Li-doped α-Fe2O3, which alleviates charge recombination and removes surface states, resulting in improved photocurrent density and onset potential for efficient PEC water oxidation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Ch. Venkata Reddy, I. Neelakanta Reddy, K. Ravindranadh, K. Raghava Reddy, Jaesool Shim, Bai Cheolho
Summary: The Au-doped BiVO4 nanostructures prepared by ultrasonication technique showed significantly improved performance as a photoanode for energy harvesting in terms of PEC photocurrent density and supercapacitor properties. The dopant enhanced charge carrier density and acted as an electron donor, contributing to the improved performance of the photoanode.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Qiang Wang, Xia Ma, Ping Wu, Bing Li, Lingxia Zhang, Jianlin Shi
Summary: The study introduced a novel integrated photoanode to enhance solar energy conversion efficiency and stabilize PEC water-splitting performance. By replacing WOR with GOR, nearly 100% Faradaic efficiency was achieved for the green energy conversion.
Article
Chemistry, Physical
Xiu-Shuang Xing, Mengru Bao, Pengchen Wang, Xiaolu Wang, Yatong Wang, Jimin Du
Summary: By using a bimetallic Mn/CoOx film as a cocatalyst prepared through high-temperature annealing of metal-organic frameworks, the structure of the alpha-Fe2O3 photoanode was optimized to enhance photocurrent density and catalytic activity for PEC water oxidation. This work provides valuable insights for the design of bimetallic cocatalysts on various photoelectrodes to achieve outstanding performance in PEC water splitting.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Huili Guo, Jian Zuo, Xin Su, Shu Chen, Rongjin Zeng, Jie Zhang, Heping Yang, Canjun Liu
Summary: In this study, an in-situ surface nanoetching method was used to increase the surface area of WO3 nanosheet array film, leading to higher photocurrent density. This research provides a simple and effective method to further increase the surface area of nanoarray photoelectrodes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yue Chang, Minmin Han, Yehui Ding, Huiyun Wei, Dawei Zhang, Hong Luo, Xiaogang Li, Xiongbo Yan
Summary: This study successfully prepared an efficient photoanode by improving the structure of hematite and finely regulating the interfacial electronic structure. The photoanode exhibited outstanding performance in water oxidation, providing valuable guidance for the design and construction of hematite photoanodes.
Review
Chemistry, Multidisciplinary
Rui Tang, Shujie Zhou, Zhenyu Zhang, Rongkun Zheng, Jun Huang
Summary: Nanostructure-interface engineering has been proven effective in constructing highly efficient PEC water oxidation photoanodes, but the relationship between the nanostructure and interface of photoanode materials and their PEC performance remains unclear. This review briefly presents the PEC water oxidation reaction mechanism and evaluation criteria, and summarizes the theoretical basis and research status of nanostructure-interface engineering for constructing high-performance PEC water oxidation photoanodes. Current challenges and future opportunities in nanostructure-interface engineering for PEC reactions are also discussed.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Shrinath Dattatray Ghadge, Moni K. Datta, Oleg Velikokhatnyi, Prashant N. Kumta
Summary: This study presents a simple and effective Mo doping approach for generating high-performance photoanodes for PEC water splitting. Mo doping can enhance light absorption ability, reduce band gap, increase carrier density and photocurrent density, while also decreasing charge transfer resistance and improving PEC stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Shuyang Peng, Di Liu, Keyu An, Zhiqin Ying, Mingpeng Chen, Jinxian Feng, Kin Ho Lo, Hui Pan
Summary: Green hydrogen is seen as the solution to energy and environmental issues. This study investigates the photoelectrochemical (PEC) process for producing green hydrogen using a Si photoanode with CoOx as a co-catalyst. The addition of Mo to CoOx increases the photovoltage to 650 mV and improves the stability of the photoanode.
Article
Electrochemistry
Sergio Gonzalez-Poggini, Bruno Sanchez, Melanie Colet-Lagrille
Summary: Yttrium-doped copper tungstate photoelectrodes were prepared by dip coating yttrium-doped CuWO4 film on conductive glass substrates. The fabricated films were confirmed to have desired morphology and chemical composition. UV-vis diffuse reflectance measurements showed a bandgap of 2.30 eV for the pure CuWO4 photoelectrode, with a small shift to higher values for the yttrium-doped photoelectrodes due to increased electronic states in the first conduction band. The photoelectrochemical characterization demonstrated that yttrium doping resulted in enhanced charge separation and a significant increase (92.5%) in photocurrent density compared to the pure CuWO4 photoelectrode.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Hongye Bai, Xia Li, Yong Zhao, Weiqiang Fan, Ying Liu, Yang Gao, Dongbo Xu, Jinrui Ding, Weidong Shi
Summary: Through a simple decoration method, Ni/Co3O4 effectively enhances the photocurrent and V-onset value of BiVO4, improves the charge transfer rate, accelerates the kinetics of water oxidation reaction, and significantly enhances the PEC water splitting performance.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Hongli Han, Jinxin Chen, Liping Wen, Jikai Liu
Summary: Two types of cobalt imidazole complexes are used as surface passivation agents to modify Sn-Fe2O3 NRs photoanode, leading to enhanced photoelectrochemical water oxidation performance.
Article
Nanoscience & Nanotechnology
Xing Zhang, Hao Chen, Wei Zhang, Lina Zhang, Xinyu Liu, Jinwen Ma, Shichong Xu, Haibo Li
Summary: A novel 3D hierarchical Fe2O3/SnO2 photoanode with improved photoelectrochemical performance was fabricated by a hydrothermal route and annealing process. The 3D Fe2O3/SnO2 heterostructures exhibited outstanding light harvesting ability, improved charge transport and separation, resulting in a significantly higher photocurrent density compared to the bare SnO2 photoanode.
Review
Chemistry, Multidisciplinary
You-Jin Kim, Jeong-Bin Moon, Hyerim Hwang, Youn Soo Kim, Gi-Ra Yi
Summary: Significant progress has been made in the synthesis and assembly of patchy colloidal clusters in recent years. These clusters, through a DNA-mediated interlocking process, can form directional bonding with specific rotation angles, and have potential applications in photonic crystals, metamaterials, topological photonic insulators, and separation membranes.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Cheng Lin, Chaoran Dong, Sungsoon Kim, Yuan Lu, Yulan Wang, Zhiyang Yu, Yu Gu, Zhiyuan Gu, Dong Ki Lee, Kan Zhang, Jong Hyeok Park
Summary: By a simple annealing process, an enhanced Mie scattering effect of the well-documented porous BiVO4 photoanode was obtained, which significantly reduced reflectivity, increased light absorbability, and achieved efficient photo-electrochemical (PEC) oxidation of glycerol (GLY) to dihydroxyacetone (DHA) on the photoanode.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Gwanghyun Lee, Yunkyu Choi, Hyungjoon Ji, Ju Yeon Kim, Jeong Pil Kim, Junhyeok Kang, Ohchan Kwon, Dae Woo Kim, Jong Hyeok Park
Summary: A highly stable silicon microparticle anode with high energy density is achieved using a hybrid binder made of functionalized carbon nanotubes and poly(acrylic acid). The anode exhibits excellent stability and capacity retention during cycling tests.
Article
Engineering, Chemical
Daero Lee, Chanui Park, Young Gyun Choi, Seunghyok Rho, Won Bo Lee, Jong Hyeok Park
Summary: A selective Li+ conductive solid-state electrolyte (SLCSE) composed of a highly conductive CMA polymer matrix and branched polyamine is reported. The incorporation of rigid benzene-ring constituents in the matrix enhances both mechanical strength and Li+ transportation. The SLCSE exhibits high ionic conductivity, high Li+ transference number, and exceptional stability, making it a promising candidate for solid-state Li-metal batteries.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Xuan Minh Chau Ta, Thi Kim Anh Nguyen, Anh Dinh Bui, Hieu T. T. Nguyen, Rahman Daiyan, Rose Amal, Thanh Tran-Phu, Antonio Tricoli
Summary: Photoelectrochemical water splitting is a promising approach to produce green hydrogen using solar energy. However, the lack of efficient photoanodes to catalyze the water photooxidation reaction remains a challenge. In this study, nanostructured FeWO4 photoanodes were synthesized on a fluorine doped tin oxide glass substrate via a scalable and ultra-fast flame synthesis route. The optimized FeWO4 photoanode with a bandgap of 1.82 eV and a FeOOH/NiOOH co-catalyst coating showed improved water photooxidation performance and good photostability, providing insights for the engineering of small band-gap catalysts for various photoelectrochemical applications.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Unbeom Baeck, Duong Nguyen Nguyen, Minsup Choi, Jaekyum Kim, Woo-Seok Choe, Jun Young Lee, Young-Seok Kim, Jung Kyu Kim
Summary: The use of oxygen-functionalized graphene as a hole interfacial layer can significantly improve the hole-transport properties and long-term stability of PEDOT:PSS, leading to improved performance in organic optoelectronic devices.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Young Moon Choi, Seung Hun Roh, Eujin Kwak, Dae-Geun Choi, Seok Joon Kwon, Jung Kyu Kim, Jong Hyeok Park
Summary: The introduction of plasmon induced energy transfer (PIET) is a promising approach to improve the photo-electrochemical (PEC) responses on metal-oxide based photoelectrodes. This study demonstrates effective localization of a plasmon-induced near-field on a photoelectrode via patterned Au NP assemblies (Au-PAT) that enhances the PEC responses for oxidation reactions. The optimized grating pitch of Au-PAT enhances the light absorption efficiency and increases the interband transition rate via PIET.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jie Jin, Shipeng Wan, SunJe Lee, Cheoulwoo Oh, Gyu Yong Jang, Kan Zhang, Ziyang Lu, Jong Hyeok Park
Summary: A micromolar amount of dye-based modulator (Rhodamine B) is used to easily and controllably tailor the pore size of a Ti-based metal-organic framework (MIL-125-NH2). The resulting hierarchically porous MIL-125-NH2 (RH-MIL-125-NH2) exhibits optimized adsorption and photocatalytic activity. This work provides a meaningful basis for the construction of hierarchically porous MOFs and demonstrates the superiority of the hierarchical pore structure for adsorption and heterogeneous catalysis.
Article
Multidisciplinary Sciences
Minje Ryu, Young-Kuk Hong, Sang-Young Lee, Jong Hyeok Park
Summary: In this study, a feasible and sustainable dry press-coating process is proposed to fabricate electrodes for lithium-ion batteries. This process improves the mechanical strength and performance of the electrodes compared to traditional wet coating, allowing for high loading and impressive specific energy and volumetric energy density.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Han Gyo Jeong, Gwanghyun Lee, Jong Hyeok Park
Summary: Silicon is a promising active material for lithium-ion batteries with a high theoretical capacity. However, its fabrication requires complicated and high-cost processes to improve cyclic performance. Herein, we report a one-step wet ball-milling process to fabricate submicron silicon particles coated with a polyacrylonitrile (PAN) layer, which enhances electrolyte wettability and increases lithium-ion pathways on the silicon surface. These improvements result in a stable solid electrolyte interphase layer and reduced internal resistance of the electrodes. The silicon anodes with optimal particle size and PAN layer exhibit superior performance even at ultra-fast current density, and when combined with an NCM712 cathode, a full-cell demonstrates excellent performance.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Physical
Seonghun Jeong, Yuankai Li, Woo Hyeong Sim, Junyoung Mun, Jung Kyu Kim, Hyung Mo Jeong
Summary: All-solid-state batteries (ASSBs) are attracting considerable attention due to their safety and high energy density, which meet the requirements of emerging battery applications. Current research focuses on utilizing high-energy negative electrode materials and reducing the amount of electrolyte to achieve high energy density in ASSBs. Sulfide-based ASSBs with high ionic conductivity and low physical contact resistance are gaining interest. This review summarizes various anode materials for ASSBs operating under electrochemically reducing conditions, and discusses strategies for mitigating interfacial failures through interlayer and electrode design.
Review
Energy & Fuels
Jinghan Wang, Dokyoon Kim, Jong Hyeok Park, Sangwoo Ryu, Mohammadreza Shokouhimehr, Ho Won Jang
Summary: This article reviews recent advancements in the electrochemical and photoelectrochemical production of H2O2, discussing the fundamental mechanism, electrode design, and engineering strategies. It also addresses the obstacles and challenges of this process, as well as methods to enhance H2O2 production and efficiency.
Article
Chemistry, Multidisciplinary
Mihui Park, Seonyong Cho, Junghoon Yang, Vincent Wing-hei Lau, Kwang Hee Kim, Jong Hyeok Park, Stefan Ringe, Yong-Mook Kang
Summary: The use of heterogeneous catalysts as substrates can regulate the growth of Li2O2 and the formation of solid/solid reaction interfaces, improving the reversibility, capacity, and durability of lithium-oxygen batteries.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Multidisciplinary Sciences
Jiwon Kim, Jae Hyung Kim, Cheoulwoo Oh, Hyewon Yun, Eunchong Lee, Hyung-Suk Oh, Jong Hyeok Park, Yun Jeong Hwang
Summary: An electro-assisted approach using acid-treated carbon electrocatalyst and in-situ cathodically generated reactive oxygen species is proposed for the partial oxidation of methane at ambient temperature and pressure. Reactive oxygen species activate methane and methanol, leading to selective methane partial oxidation. This study presents a method for the electrochemically assisted partial oxidation of methane to produce liquid oxygenate, HCOOH, selectively.
NATURE COMMUNICATIONS
(2023)
Review
Chemistry, Physical
Tae-Kyung Liu, Gyu Yong Jang, Sungsoon Kim, Kan Zhang, Xiaolin Zheng, Jong Hyeok Park
Summary: Aqueous photoelectrochemical (PEC) cells are a promising technology for converting solar energy into hydrogen, but their efficiency and cost-effectiveness are limited by sluggish oxygen evolution reaction (OER) kinetics and the low economic value of the produced oxygen gas. Organic upgrading PEC reactions, especially alternative OERs, have gained considerable attention for improving efficiency and economic effectiveness. This review provides an overview of PEC reaction fundamentals, cost analysis, recent advances in organic upgrading reactions using different substrates, and discusses the current status, future prospects, and challenges towards industrial applications.
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.
