Article
Materials Science, Multidisciplinary
Fengjuan Miao, Bingcheng Sun, Bairui Tao, Yanchun Wang, Paul K. Chu
Summary: This paper demonstrates the application of a novel ternary nanocomposite MoS2/Ag/TiO2 photoanode in high efficiency plasma dye sensitive solar cell. The ternary nanocomposite MoS2/Ag/TiO2 was successfully synthesized without any hazardous substances. The addition of MoS2 improves the light absorption ability and electron transfer rate of the photoanode, leading to a significant enhancement in the photoelectric conversion efficiency of the dye sensitive solar cell.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Mustafa Tokay, Akeem Adeyemi Oladipo, Mehmet Kusaf
Summary: This study reports the impact of adding varying loadings of NZF nanoparticles into a TiO2 photoanode on the performance of DSSCs sensitized with natural and commercial dye molecules. The findings show that NZF greatly improves the photoconversion efficiency of the DSSCs, with the greatest improvement observed at an optimum loading of 50% w/w. The improved performance can be attributed to higher dye loading, improved electron transportation, and reduced electron recombination rates.
Article
Chemistry, Physical
Sanjay Kumar Swami, Neetesh Kumar, Daniela R. Radu, Sung Woon Cho, Jongsu Lee
Summary: In this study, a post-lithium (Li) treatment on TiO2 films was performed to enhance the optoelectronic features and power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs). The Li treatment reduced defects and improved the crystallinity of the TiO2 films. DSSCs fabricated using Li-treated TiO2 films as photoanodes showed a performance improvement of approximately 20% and a PCE of 10.5%, compared to the control DSSC with a PCE of 8.7%. The enhanced performance was attributed to improved structural properties, efficient charge transport, and suppression of recombination due to the passivation of trap states.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Ramarajan Ramanathan, Michael Zinigrad, Dhivyaprasath Kasinathan, Ranjith Kumar Poobalan
Summary: This study focuses on synthesizing composite materials based on Zn2SnO4 as photoanodes for dye sensitized solar cells (DSSCs), aiming to improve the power conversion efficiency. The synthesized composite materials exhibit better optical and structural properties, leading to higher performance compared to the pristine material.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Applied
Jiayuan Li, Yong Zhu, Fei Li, Guoquan Liu, Suxian Xu, Licheng Sun
Summary: Addition of pyridine additives on the surface of TiO2 photoanode can significantly increase the photocurrent, up to 42%. One specific combination under experimental conditions produced a photocurrent density of 1 mA/cm(2).
CHINESE JOURNAL OF CATALYSIS
(2021)
Review
Chemistry, Multidisciplinary
Ana Belen Munoz-Garcia, Iacopo Benesperi, Gerrit Boschloo, Javier J. Concepcion, Jared H. Delcamp, Elizabeth A. Gibson, Gerald J. Meyer, Michele Pavone, Henrik Pettersson, Anders Hagfeldt, Marina Freitag
Summary: Dye-sensitized solar cells (DSCs) and dye-sensitized photoelectrochemical cells (DSPECs) have seen a revival in recent years as they offer unique properties such as low cost, non-toxic materials, colorfulness, transparency, and efficiency in low light conditions. This review covers advancements in DSC technology over the past decade, including theoretical studies, characterization techniques, materials, applications, and commercialization efforts by various companies.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Multidisciplinary Sciences
Brishty Deb Choudhury, Chen Lin, Sk Md Ali Zaker Shawon, Javier Soliz-Martinez, Hasina Huq, Mohammed Jasim Uddin
Summary: The study presents an improved photoanode with hierarchical microstructure of photoactive TiO2, along with the deposition of plasmonic nanoparticle Ag using photoreduction method. The branched structure of the photoanode increases dye loading, while Ag nanoparticles play multiple roles in enhancing light-to-current conversion efficiency. This novel design shows remarkably higher photon conversion efficiency compared to traditional structures.
SCIENTIFIC REPORTS
(2021)
Article
Energy & Fuels
Raheleh Ahmadi, Maryam Heydari Dokoohaki, Zahra Hosseini, Javad Tashkhourian, Amin Reza Zolghadr, Afsaneh Safavi
Summary: A systematic study is conducted on the preparation of ZnO/CeO2 mixed metal oxide (MMO) as a photoanode for dye-sensitized solar cells (DSSCs). The effects of various synthesis conditions on the photovoltaic performance of DSSCs are carefully evaluated. It is found that all the examined parameters have a significant influence on the efficiency of the DSSCs, with the best conversion efficiency reaching 2.08%.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Mohamed Bashir Ali Bashir, Altaf Hussain Rajpar, Ethar Yahya Salih, Emad M. Ahmed
Summary: In this study, dye-sensitized solar cells (DSSCs) based on mesoporous CuO@Zn(Al)O-mixed metal oxides (MMO) were fabricated at different post-processing temperatures. The CuO@Zn(Al)O structure was obtained by using Zn/Al-layered double hydroxide (LDH) as a precursor. The dye loading amount onto the deposited materials was analyzed using a regression equation-based UV-Vis technique, showing a strong correlation with the power conversion efficiency of the DSSCs. Among the assembled DSSCs, CuO@MMO-550 exhibited significant fill factor and power conversion efficiency due to its high surface area and considerable dye loading amount.
Article
Chemistry, Multidisciplinary
Siqi Zhang, Fuhua Huang, Xugeng Guo, Ye Xiong, Yafei Huang, Hans Agren, Li Wang, Jinglai Zhang
Summary: We have developed a new strategy to create a multifunctional composite photoanode consisting of TiO2 hollow spheres (TiO2-HSs), Au nanoparticles (AuNPs), and novel NaYF:Yb,Er@NaLuF:Eu@SiO2 upconversion nanoparticles (UCNPs). By growing AuNPs on the photoanode film, including TiO2-HSs and UCNPs, through a simple in situ plasmonic treatment, we achieved an impressive power conversion efficiency of 14.13%, which is a record for N719 dye-based dye-sensitized solar cells. This remarkable enhancement is attributed to the collaborative mechanism of TiO2-HSs, UCNPs, and AuNPs, which exhibit excellent light-scattering ability, convert near-infrared photons into visible photons, and present outstanding surface plasmon resonance effect, respectively. Moreover, the champion cell showed a retention efficiency of 95.33% even after 180 hours of measurements, indicating good device stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Pronay Makal, Debajyoti Das
Summary: TNW/GCN composites were synthesized using a simple pyrolysis process, leading to an enhanced overall efficiency of DSSCs. The addition of optimum amount of g-C3N4 improved the JSC and VOC, resulting in a higher photoconversion efficiency of 5.12%.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Naveen Kumar Panneer, Chandrakala Venkatraman, Neena Bachan, Jothi Jeyarani Wilson, Merlin Arnold Edwin, Antony Robinson Jesudasan, Merline Shyla Joseph
Summary: The manuscript describes the fabrication and characterization of an eco-friendly dye-sensitized solar cell (DSSC) using aluminium-doped tin oxide nanoparticles. The doped nanoparticles showed improved optical and electrical properties compared to the undoped ones. The study also investigated the crystal structure, particle size, and photoconductivity of the nanoparticles using analytical tools such as X-ray diffraction and field emission scanning electron microscope. The results demonstrate the potential of Al-doped SnO2 nanoparticles for efficient and environmentally safe photovoltaic applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Ethar Yahya Salih, Asmiet Ramizy, Osamah Aldaghri, Mohd Faizul Mohd Sabri, Nawal Madkhali, Tarfah Alinad, Khalid Hassan Ibnaouf, Mohamed Hassan Eisa
Summary: This study presents a simple technique for preparing novel hexagonal-shaped mixed metal oxide nanorods using Zn/Al-layered double hydroxide as a precursor for dye-sensitized solar cell application. The study shows that the nanorods' diameter has a strong correlation with the efficiency of the fabricated solar cells. Additionally, the study demonstrates the optical behavior of the fabricated oxide film and the absorption enhancement caused by the utilized dye.
Article
Chemistry, Physical
Bing Li, Naiyun Tang
Summary: Density functional theory (DFT) calculations were used to investigate the effects of doping Zr, Sn, Pb, Si, and Pt atoms into the Ti vacancy of TiO2. The results showed that the band gap of TiO2 was changed by the doping, leading to indirect-direct band gap transition. The analysis of the optical properties revealed that the thin crystal structure achieved strong absorption of light energy, which is beneficial for improving the photoelectric conversion efficiency.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Ayesha Siddika, Munira Sultana, M. S. Bashar, Samia Tabassum, Shahin Aziz, Md Aftab Ali Shaikh
Summary: Two different fabrication methods (Doctors blade and Screen print) were used to prepare photoanodes, and the effects of three ruthenium based dyes (N3, N749 and Z907, as well as their mixed dye) on dye sensitized solar cells were investigated. The mixed dye showed the highest efficiency in harvesting a wider range of solar lights compared to individual dyes, leading to improved overall power conversion efficiencies of DSSCs.
Article
Robotics
Dino Accoto, Alessandro Donadio, Sibo Yang, Ankit, Nripan Mathews
Summary: The study presents a dual slip-pressure sensor based on a thermal approach that can measure pressure and slip simultaneously in real-time. By using liquid metal droplets to enhance the thermal conductivity and specific heat of the sensor, it maintains mechanical properties while improving sensitivity and accuracy.
Article
Chemistry, Multidisciplinary
Anil Kanwat, Biplab Ghosh, Si En Ng, Prem J. S. Rana, Yulia Lekina, Thomas J. N. Hooper, Natalia Yantara, Mikhail Kovalev, Bhumika Chaudhary, Priyanka Kajal, Benny Febriansyah, Qi Ying Tan, Maciej Klein, Ze Xiang Shen, Joel W. Ager, Subodh G. Mhaisalkar, Nripan Mathews
Summary: This study investigates the optoelectronic properties and chromism of halide perovskite materials and demonstrates the control of chromism and photochromism through crystal structure transformation and modulation of intermediate n phase. These findings offer new possibilities for optoelectronics, information display, and smart window applications.
Review
Chemistry, Multidisciplinary
Teck Ming Koh, Hao Wang, Yan Fong Ng, Annalisa Bruno, Subodh Mhaisalkar, Nripan Mathews
Summary: The rapid emergence of organic-inorganic lead halide perovskites has made them promising candidates for low-cost and high-efficiency photovoltaics. This review highlights the unique features and properties of perovskite solar cells (PSCs) for building-integrated photovoltaics (BIPVs). The article discusses device engineering, optical management strategies, and the performance of PSCs under different conditions relevant to BIPV. It also showcases recent outdoor stability testing and scalability demonstrations, as well as the challenges and future opportunities for perovskite-based BIPV.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Lifei Xi, Mengyuan Zhang, Liling Zhang, Tedrick T. S. Lew, Yeng Ming Lam
Summary: Urban farming offers fresh food, improved sustainability, and productivity. Novel materials play a crucial role in urban farming, facilitating waste recycling and plant health monitoring.
ADVANCED MATERIALS
(2022)
Article
Environmental Sciences
Yamin Wang, Swee Ngin Tan, Mohamed Lokman Mohd Yusof, Subhadip Ghosh, Yeng Ming Lam
Summary: Heavy metal and metalloid contamination in urban soils is a common problem. This study investigated the levels of 12 heavy metals and metalloids in soil and their accumulation by plant foliage in nature parks and industrial sites in Singapore. The results showed that certain tropical plant species have the potential to remediate contaminated lands.
ENVIRONMENTAL POLLUTION
(2022)
Article
Chemistry, Physical
Sankaran Ramesh, David Giovanni, Marcello Righetto, Senyun Ye, Elisa Fresch, Yue Wang, Elisabetta Collini, Nripan Mathews, Tze Chien Sum
Summary: The authors successfully engineered the energy cascade manifold of quantum well states in quasi-2D Ruddlesden-Popper perovskites by tuning the organic spacer, resulting in a slower excess energy loss rate and efficient carrier extraction. 2D electronic spectroscopy provided insights into the structural and energetic disorder of these materials. The choice of the organic spacer is crucial for tailoring the coherent coupling between quantum wells and influencing the competition between the energy cascade and charge extraction.
ADVANCED ENERGY MATERIALS
(2022)
Review
Energy & Fuels
Nidhi Tiwari, Herlina Arianita Dewi, Enkhtur Erdenebileg, Ram Narayan Chauhan, Nripan Mathews, Subodh Mhaisalkar, Annalisa Bruno
Summary: The performance of perovskite solar cells is largely determined by the composition of perovskite and the selection of electron and hole transport layers. Surface modifications on NiOx films can improve the interface quality between NiOx films and perovskite active layers, leading to higher photovoltaic performance.
Article
Materials Science, Ceramics
Doni Daniel Jayaseelan, S. Pramana, S. Grasso, Y. Bai, S. Skinner, M. J. Reece, W. E. Lee
Summary: In this study, single-phase Hf2Al4C5 ternary carbide was fabricated using pressure assisted sintering techniques and its properties were investigated at different temperatures. The results showed that Hf2Al4C5 started to form at relatively low temperatures and fully formed after reactive sintering for a certain period of time. The thermal conductivity of Hf2Al4C5 was measured to be good at high temperatures. The oxidation study revealed that Hf2Al4C5 exhibited good oxidation resistance at high temperatures and had favorable interface bonding characteristics.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Huei Min Chua, Natalia Yantara, Yeow Boon Tay, Suriani Abdul Latiff, Subodh Mhaisalkar, Nripan Mathews
Summary: This study investigates the mitigation of energy level mismatch and exciton quenching caused by PEDOT:PSS in PeLEDs through the addition of work-function-tunable PSS Na to the PEDOT:PSS hole-transport layer (HTL). The addition of 6% PSS Na improves the external quantum efficiency and prolongs the operation stability of blue and sky-blue PeLEDs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Senyun Ye, Haixia Rao, Minjun Feng, Lifei Xi, Zhihao Yen, Debbie Hwee Leng Seng, Qiang Xu, Chris Boothroyd, Bingbing Chen, Yuanyuan Guo, Bo Wang, Teddy Salim, Qiannan Zhang, Huajun He, Yue Wang, Xingchi Xiao, Yeng Ming Lam, Tze Chien Sum
Summary: By processing metal and ammonium halides together, Ye et al. expand the metal cation library for low-dimensional interface materials of perovskite solar cells. Three-dimensional/low-dimensional perovskite solar cells show improved efficiency and stability. This research provides greater flexibility and synthetic control for the design of low-dimensional capping materials.
Article
Chemistry, Multidisciplinary
E. Erdenebileg, N. Tiwari, F. U. Kosasih, H. A. Dewi, L. Jia, N. Mathews, S. Mhaisalkar, A. Bruno
Summary: Metal oxides, such as non-stoichiometric nickel oxide (NiOx), have been widely used in thin film solar cells for their suitable energy band levels, high charge carrier mobilities, and excellent stability. In this study, we demonstrate the fabrication of co-evaporated perovskite solar cells (PSCs) with sputtered NiOx as the hole transport layer. We investigate the impact of sputtering conditions on the physical properties of NiOx and achieve highly efficient PSCs using optimized conditions.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Romika Sharma, Qiannan Zhang, Linh Lan Nguyen, Teddy Salim, Yeng Ming Lam, Tze Chien Sum, Martial Duchamp
Summary: In this article, the impact of environmental parameters on the structural properties of MAPbI3 thin films is investigated using microscopy techniques. It is found that even less than 3 minutes of air exposure increases the sensitivity to electron beam deterioration and modifies the structural transformation pathway. The optical responses and defect formation of both air-exposed and non-air-exposed MAPbI3 thin films are also measured.
ACS NANOSCIENCE AU
(2023)
Article
Nanoscience & Nanotechnology
Xingchi Xiao, Liang Cheng, Di Bao, Qi Ying Tan, Teddy Salim, Cesare Soci, Elbert E. M. Chia, Yeng Ming Lam
Summary: Singlet fission (SF) materials have been used to improve the power conversion efficiency (PCE) of solar cells. However, SF implementation in perovskite solar cells has not been successful due to the lack of understanding of the SF/perovskite heterojunctions. In this study, the charge dynamics between a well-known SF molecule, TIPS-pentacene, and a triple-cation perovskite Cs-0.05(FA(0.85)MA(0.15))(0.95)PbI2.55Br0.45 were investigated. The results show that there is an electron-transfer process from TIPS-pentacene to perovskite, leading to an increase in carrier density in the perovskite layer. This study confirms the potential of SF-enhanced perovskite solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Zhihao Yen, Teddy Salim, Chris Boothroyd, Peter Ferdinand Haywood, Cheng-Tai Kuo, Sang-Jun Lee, Jun-Sik Lee, Deok-Yong Cho, Yeng Ming Lam
Summary: This study demonstrates a new application of Cu-doped MILD-synthesized Ti3C2Tx MXene for urea removal. Cu doping increases the affinity of MXene for urea due to the formation of Cu-urea complexes. Cu-doped MXene follows monolayer adsorption on a homogeneous surface model.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Gurudutt Bhat, Marcin Kielar, Haixia Rao, Mahnaz D. Gholami, Isabel Mathers, Astrid C. R. Larin, Thomas Flanagan, Enkhtur Erdenebileg, Annalisa Bruno, Amandeep Singh Pannu, Kathryn E. Fairfull-Smith, Emad L. Izake, Pankaj Sah, Yeng Ming Lam, Ajay K. Pandey, Prashant Sonar
Summary: The versatile nature of organic conjugated materials allows them to be seamlessly integrated into various optoelectronic devices. By combining boron-azadipyrromethene with triphenylamine, a multi-purpose conjugated small molecule is developed. This molecule can be used as either a charge transporting interlayer or a light-sensing semiconducting layer in optoelectronic devices. It exhibits excellent performance in perovskite solar cells and near-infrared organic photodetectors.
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.
