Article
Energy & Fuels
Fan Liu, Fei Wu, Weidong Ling, Linna Zhu, Qianqian Li, Zhen Li
Summary: It has been found that modifying HTMs to TBC can improve hole mobility and thus increase the conversion efficiency of perovskite solar cells.
Article
Chemistry, Physical
Lusheng Liang, Yang Wang, Zilong Zhang, Junwei Wang, Kui Feng, Suxiang Ma, Yongchun Li, Xugang Guo, Peng Gao
Summary: Introduction of a fused polycyclic aromatic hydrocarbon core enhances hole mobility and film-forming properties of hole-transporting materials for perovskite solar cells, leading to improved efficiency and reduced nonradiative recombination. Fused core engineering shows promise for developing highly efficient HTMs in PSCs.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Xiang-Dong Zhu, Fei Wu, Chen-Chen Peng, Ling-Yi Ding, You-Jun Yu, Zuo-Quan Jiang, Lin-Na Zhu, Liang-Sheng Liao
Summary: The asymmetrical 8,8-dimethyl-8H-indolo[3,2,1-de]acridine (ACZ) was developed as a central core for hole-transporting materials (HTMs) in perovskite solar cells (PeSCs). Two asymmetrical HTMs, ACZ-TAD and ACZ-TPA, with different arylamines branches were designed and synthesized. These new HTMs showed higher hole mobility and better charge extraction properties, leading to superior power conversion efficiencies in PeSCs compared to the classical HTM spiro-OMeTAD. The molecular design concept in this work demonstrates great potential for future HTM development.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Zhihui Wang, Suhao Yan, Zongyuan Yang, Yujie Zou, Jin Chen, Chunchen Xu, Ping Mao, Shijie Ding, Jing Chen, Xueping Zong, Tianshi Qin, Mao Liang
Summary: Developing a coplanar n-extended backbone using large coplanar tetrathienopyrrole (TTTP) building block is crucial for achieving high hole transport capability and thermal stability for hole-transporting material (HTMs). Two novel linear organic HTMs (WH01 and WH02) constructed with TTTP show improved hole extraction/transport capacity and compatibility with either planar or twisted donor, leading to power conversion efficiencies (PCEs) of around 21% in perovskite solar cells. The TTTP-based molecules demonstrate promising potential as HTMs for achieving highly efficient and stable PSCs.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Xin Wu, Danpeng Gao, Xianglang Sun, Shoufeng Zhang, Qi Wang, Bo Li, Zhen Li, Minchao Qin, Xiaofen Jiang, Chunlei Zhang, Zhuo Li, Xinhui Lu, Nan Li, Shuang Xiao, Xiaoyan Zhong, Shangfeng Yang, Zhong'an Li, Zonglong Zhu
Summary: In this study, a simple design strategy of polymer hole-transporting materials (HTMs) is reported, which can modulate the wettability and promote the anchoring by introducing pyridine units into the polyarylamine backbone, resulting in efficient and stable inverted perovskite solar cells (PVSCs).
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Yao Tong, Bowei Xu, Fangfu Ye
Summary: This article reviews the recent advances in solution-processed hole transporting layers (HTLs) in organic solar cells (OSCs), including their working mechanism, material characteristics, and existing problems. It also provides some perspectives to help researchers understand the challenges and opportunities in this field.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Nari Kang, Sangho Cho, Eric E. Leonhardt, Chun Liu, Stanislav V. Verkhoturov, William Henry Hunter Woodward, Michael J. Eller, Tianyu Yuan, Thomas C. Fitzgibbons, Yannick P. Borguet, Ashlee A. Jahnke, Anatoliy N. Sokolov, Travis McIntire, Carl Reinhardt, Lei Fang, Emile A. Schweikert, Liam Patrick Spencer, Guorong Sun, Guohua Xie, Peter Trefonas, Karen L. Wooley
Summary: By constructing brush-like polymers, the vertical alignment of polymer side chains in thin films was achieved, leading to an improvement in the efficiency of organic light-emitting diodes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Dingyan Huang, Huimin Xiang, Ran Ran, Wei Wang, Wei Zhou, Zongping Shao
Summary: Organic-inorganic halide perovskite solar cells have gained significant attention due to their high-power conversion efficiencies, facile fabrication, and low cost. However, the instability issue, caused by the poor quality of perovskite films and the limited heat and moisture tolerance of organic hole-transporting layer (HTL), hinders their commercialization. Inorganic HTL materials have emerged as promising alternatives due to their high chemical stability, wide band gap, high light transmittance, and low cost. This review highlights the recent advancements in the design and fabrication of nanostructured inorganic HTLs for PSCs, emphasizing their superiority over organic counterparts in terms of moisture and heat tolerance, hole transfer capability, and light transmittance. Additionally, strategies to enhance the performance of inorganic HTLs, such as fabrication route design and nanocomposite construction, are proposed. The challenges and future research directions for nanostructured inorganic HTL-based PSCs are also discussed. This review provides valuable guidelines for the development of high-efficiency and durable inorganic HTL-based PSCs.
Review
Materials Science, Multidisciplinary
Song Li, Yong-Li Cao, Wen-Hua Li, Zhi-Shan Bo
Summary: Perovskite solar cells (PSCs) have gained significant attention in the field of photovoltaics due to their exceptional performance, with the power conversion efficiency reaching up to 25.2%. This review focuses on discussing various hole transporting materials (HTMs) in PSCs, emphasizing their role in improving photovoltaic performance. Different organic and inorganic HTMs are categorized and their advantages and disadvantages are demonstrated, with the aim of providing insights for the design and application of novel HTMs to further enhance PSCs performance.
Article
Energy & Fuels
Cansu Igci, Hiroyuki Kanda, So-Min Yoo, Albertus Adrian Sutanto, Olga A. Syzgantseva, Maria A. Syzgantseva, Vygintas Jankauskas, Kasparas Rakstys, Mounir Mensi, Hobeom Kim, Abdullah M. Asiri, Mohammad Khaja Nazeeruddin
Summary: Three BDP-based organic small molecules, CB-1, CB-2, and CB-3, were synthesized as HTMs for PSCs. Among them, CB-2 exhibited the highest PCE due to its highly planar conformation and defect passivation effect. These properties highlight the great potential of CB-2 as an HTM for efficient and stable PSCs.
Article
Chemistry, Applied
Wenjing Zhu, He Qu, Ming Qin, Hao Dong, Xin Zhou
Summary: Understanding the relationship between structure and property of hole-transporting materials (HTMs) is crucial for the development of efficient perovskite solar cells (PSCs). In this study, density functional theory combined with Marcus theory was used to investigate the structural, electronic, optical, electrochemical, and hole transporting properties of designed molecules. The results showed that extending π-conjugation, enhancing solubility, and strengthening the defect passivation ability can improve the performance of the molecules as HTMs, making them promising candidates for PSCs.
Article
Chemistry, Multidisciplinary
Rui Guo, Xiaoru Zhang, Xin Zheng, Lin Li, Min Li, Yang Zhao, Shujing Zhang, Long Luo, Shuai You, Weixi Li, Zhongmiao Gong, Rong Huang, Yi Cui, Yaoguang Rong, Haipeng Zeng, Xiong Li
Summary: A topological design of highly anisotropic aligned self-assembled hole transporting molecules (SAHTMs) based hole transporting layers (HTLs) has been demonstrated for operationally stable perovskite solar cells (PSCs) with exceptional power conversion efficiencies (PCEs). The judiciously designed SAHTMs possess both hole transporting and anchoring functions, enabling efficient charge transfer and improved stability. These SAHTMs show high affinity to the perovskite film, leading to passivation of the interface and enhanced interfacial contact, resulting in highly efficient and stable PSC devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Ming-Wei An, Bolin Li, Bin -Wen Chen, Zuo-Chang Chen, Han-Rui Tian, Lin-Long Deng, Xugang Guo, Zhou Xing
Summary: In this study, two star-like, dopant-free, corannulene-cored HTMs with O-terminals (Cor-OMePTPA) and S-terminals (Cor-SMePTPA) were fabricated for inverted PSCs. The Cor-SMePTPA HTM demonstrated better hole-transporting ability and interfacial contact resulting in a power conversion efficiency of 21.70%, the highest among inverted PSCs based on SMe-terminated HTMs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Zheng Zhang, Ligang Yuan, Bin Li, Huiming Luo, Sijing Wang, Zhijun Li, Yifan Xing, Jiarong Wang, Peng Dong, Kunpeng Guo, Zhongqiang Wang, Keyou Yan
Summary: A new spiro-based HTM, Spiro-4TFETAD, was developed by replacing methoxy groups in Spiro-OMeTAD with trifluoroethoxy substituents, exhibiting lower HOMO level, higher thermal stability, hole mobility, and hydrophobicity. PSCs utilizing Spiro-4TFETAD achieved a high power conversion efficiency of 21.11% and excellent humidity resistance, showcasing the promising potential of trifluoroethoxyl molecular design in creating efficient and stable PSCs.
Review
Energy & Fuels
Francesco Lamberti, Fabian Schmitz, Wei Chen, Zhubing He, Teresa Gatti
Summary: The research on perovskite solar cells (PSCs) is advancing towards standard protocols for efficiency and stability assessment, as well as exploring new materials. Researchers are focusing on the impact of ancillary layers on PSC performance, particularly the hole-transporting material (HTM) used to extract electrical charges from perovskite.
Article
Chemistry, Physical
Ping-Ping Sun, Devesh R. Kripalani, Lichun Bai, Weijie Chi, Kun Zhou
Summary: Pentadiamond is discovered as a highly efficient electron transport material that can enhance interface carrier extraction, showing excellent photovoltaic performance. With semiconductor properties and outstanding electron transport capability, it has great potential for applications in PSCs.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Yan Jiang, Pingping Sun, Lekha Sharma, Baoguang Mao, Rita Kakkar, Tao Meng, Lirong Zheng, Minhua Cao
Summary: The study successfully demonstrated the atomic level identification of catalytic active sites for alkaline HER using MoSe2/CoSe HHSs catalyst model, revealing that it follows the classic bifunctional mechanism. A general two-step Ostwald ripening strategy for mechanism-oriented material design was proposed.
Article
Materials Science, Multidisciplinary
Ping-Ping Sun, Devesh R. Kripalani, Weijie Chi, Shane A. Snyder, Kun Zhou
Summary: Two-dimensional Ruddlesden-Popper (2DRP) metal halides, particularly (PA)(2)(MA)(2)Pb3I10, have shown high stability, low self-doping levels, and long-lived free carriers for photovoltaic applications. This study explores lead-free alternatives by investigating the optoelectronic properties and carrier transport capabilities of (PA)(2)(MA)(2)M3I10 metal halides, leading to the discovery that (PA)(2)(MA)(2)Zn3I10 and (PA)(2)(MA)(2)Ge3I10 show promising potential as efficient absorbers in photovoltaic solar cell devices.
Article
Chemistry, Multidisciplinary
Supphachok Chanmungkalakul, Chao Wang, Rong Miao, Weijie Chi, Davin Tan, Qinglong Qiao, Esther Cai Xia Ang, Choon-Hong Tan, Yu Fang, Zhaochao Xu, Xiaogang Liu
Summary: A simple descriptor, Delta E, was developed to predict host molecules matching with guest RTP emitters with high accuracy. This matching enabled the achievement of multi-layer message encryption.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Qiaogan Liao, Yang Wang, Mengyao Hao, Bolin Li, Kun Yang, Xiaofei Ji, Zhaojin Wang, Kai Wang, Weijie Chi, Xugang Guo, Wei Huang
Summary: Research on utilizing fluorination strategy to prepare two novel hole contact molecules has shown great potential in improving the interfacial interaction between hole contacts and perovskite, as well as enhancing the performance of PSC devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Weijie Chi, Ping-Ping Sun
Summary: The restriction of intramolecular motion (RIM) and restricted access to a conical intersection (RACI) are common working mechanisms for aggregation-induced emission (AIE) phenomena. However, these mechanisms cannot fully explain certain AIE phenomena as the family of AIE molecules expands. In this study, the restriction of photoinduced electron transfer (RPET) state is proposed to rationalize AIE phenomena of trityl-functionalised maleimide molecule. The results provide a theoretical foundation for understanding the working mechanisms of AIE molecules and designing new AIEgens.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Xia Wu, Ying Gao, Weijie Chi, Chao Wang, Zhaochao Xu, Xiaogang Liu
Summary: Rhodamine derivatives are important fluorophores with a unique equilibrium between a fluorescent open form and a non-emissive closed form. The closed form is understudied due to its low fluorescence. Through quantum chemical calculations, it was shown that the closed-form rhodamines are non-fluorescent because of the stability of a weakly emissive charge transfer state. A rapid design method was proposed to activate the fluorescence of closed-form rhodamine analogs, which can be used for advanced bioimaging and biosensing applications.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Pingping Sun, Devesh R. Kripalani, Weijie Chi
Summary: This study systematically investigated the excited-state intramolecular proton transfer (ESIPT) effect of three 3-thiolflavone derivatives containing sulfur-hydrogen bonds. The presence of intramolecular sulfur-hydrogen bonds was confirmed through bond length analysis, interaction energy calculations, and infrared vibrational spectra. It was found that the electron-withdrawing group stabilizes the tautomer, while the electron-donating group reduces the energy barrier of the ESIPT reaction. Additionally, the substituent group determines the excited-state electronic properties of keto tautomers, with the electron-withdrawing group significantly reducing the radiation rate and the electron-donating group leading to bright emission.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Chemistry, Physical
Xiaoning Li, Liangjing Tu, Mingxue Gao, Aisen Li, Yi Chen, Weijie Chi, Dongdong Zhang, Lian Duan, Yujun Xie, Ben Zhong Tang, Zhen Li
Summary: Exploring blue organic light emitting diodes (OLED) is a challenging yet important task. By fusing cyclohexane with quinoxaline, the electron-withdrawing ability and conjugation degree of the acceptor can be weakened, resulting in blue-shifted emission. Three blue to cyan fluorescent emitters (Me-DPA-TTPZ, tBu-DPA-TTPZ, and TPA-TTPZ) were designed and synthesized, exhibiting high photoluminescence quantum yields and thermal stability. OLEDs with TPA-TTPZ emitters demonstrated deep-blue (449 nm) and blue (468 nm) emission, validating their potential as blue emitters in OLEDs.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Energy & Fuels
Ping-Ping Sun, Xuyuan Zhang, Shuai Yuan, Weijie Chi, Guilong Cai
Summary: This study explores the potential lead-free alternatives to ACI 2D GA(MA)(3)M3I10 perovskites by replacing lead with metals such as Cd, Cu, Ge, Ni, Sn, Zn, Ca, Si, Fe, Mg, Sr, Ba, and Pd using first-principles calculations. The findings show that Cu, Zn, and Mg can finely tune the bandgap of GA(MA)(3)M3I10 within the required range for photovoltaic applications. GA(MA)(3)Cu3I10 exhibits the strongest carrier transport ability with the highest carrier mobility of 479.7 cm(2) V-1 s(-1). GA(MA)(3)Mg3I10 demonstrates the highest power conversion efficiency of 23.6%, positioning itself as a promising photoabsorber candidate for photovoltaic applications. These findings contribute to the design of environmentally friendly and high-efficiency ACI 2D perovskites, while also revealing an undetected mechanism.
Article
Chemistry, Multidisciplinary
Ke Fan, Biao Yang, Shanshan Yu, Rongguang Yang, Linfeng Zhang, Weijie Chi, Minghao Yin, Huadong Wu, Jia Guo
Summary: Deep eutectic solvents (DESs) formed from choline chloride (ChCl), benzene sulfonic acid (BSA), and ethylene glycol (EG) show excellent desulfurization performance for sulfide removal. Ternary DESs have advantages like volatility and high activity compared to binary DESs based on organic acids. Under optimized conditions, the ternary DES achieved 100% desulfurization efficiency for different sulfides.
Article
Materials Science, Multidisciplinary
Weijie Chi, Jianfeng Dai, Chengxu Yan, Davin Tan, Zhiqian Guo, Xiaogang Liu
Summary: In this study, a new aggregation-induced emission (AIE) mechanism, known as restriction of intramolecular bending (RIB), was discovered using computational chemistry and experimental validation. The RIB mechanism involves fluorescence quenching caused by the structural bending of the fluorophore scaffold in a dilute solution, which is only recovered in the aggregate state when the bending is inhibited. This finding provides a practical guide for the molecular design of AIEgens and opens up a new avenue for the rational development of functional AIEgens.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Qinglong Qiao, Wenjuan Liu, Weijie Chi, Jie Chen, Wei Zhou, Ning Xu, Jin Li, Xiangning Fang, Yi Tao, Yinchan Zhang, Yingzhu Chen, Lu Miao, Xiaogang Liu, Zhaochao Xu
Summary: The combination of super-resolution microscopy and synthetic fluorescence probes, with the introduction of a dynamic aggregation mediated SNAP-tag fluorogenic probe BGAN-Aze, enables the monitoring of dynamic biological events at the nanometer scale. This probe specifically binds to different SNAP-tag fusion proteins and exhibits significant fluorescence enhancement. The equilibrium between non-fluorescent aggregate/dimer and the fluorescent monomer allows for reduced background fluorescence and washing-free super-resolution imaging.
Article
Chemistry, Physical
Guilong Cai, Zeng Chen, Tengfei Li, Xinxin Xia, Yuang Fu, Luhang Xu, Weijie Chi, Jianqi Zhang, Haiming Zhu, Xiaowei Zhan, Xinhui Lu
Summary: Designing a new non-fullerene acceptor BOEH-4Cl and predicting its performance using theoretical calculations, this study demonstrated the potential of utilizing chemical calculations in the design process. The optimized BOEH-4Cl film showed improved properties, making it a promising acceptor for organic solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
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.
