Article
Chemistry, Multidisciplinary
Guangbo Chen, Yun An, Shengwen Liu, Fanfei Sun, Haoyuan Qi, Haofei Wu, Yanghua He, Pan Liu, Run Shi, Jian Zhang, Agnieszka Kuc, Ute Kaiser, Tierui Zhang, Thomas Heine, Gang Wu, Xinliang Feng
Summary: The study successfully constructed catalysts with densely exposed surface FeN4 moieties on hierarchically porous carbon, which exhibited excellent ORR activity in acidic media and promising performance in proton exchange membrane fuel cells.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Lingya Yi, Yanli Niu, Bomin Feng, Ming Zhao, Weihua Hu
Summary: This study presents a unique photochemical-electrochemical strategy to fabricate an active Fe-doped Ni oxyhydroxide electrocatalyst with abundant Fe-containing active sites on the surface and high crystallinity of the NiOOH host. Due to these properties, the electrocatalyst shows higher oxygen evolution reaction catalytic activity compared to other analogues, offering a universal strategy for synthesis of OER electrocatalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Materials Science, Multidisciplinary
Jianan Zhao, Shanshan Sun, Yuqing Li, Wenbin Tang, Qinghong Huang, Nengfei Yu, Yuping Wu
Summary: In recent years, non-noble metal catalysts like Fe-N-C have gained significant attention for their excellent oxygen reduction activity. By using Lewis doping and double nitrogen source strategies to increase the density of accessible active sites, the catalyst exhibits outstanding ORR performance, providing a new approach for designing carbon-based catalysts for efficient energy conversion.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Javier Quilez-Bermejo, Emilia Morallon, Diego Cazorla-Amoros
Summary: This study investigates the deactivation mechanism of N-doped carbon materials in the oxygen reduction reaction (ORR) through experiments and computational modeling. It reveals that in both acidic and alkaline environments, graphitic-type nitrogen species deactivate through oxidation and tautomerization reactions, resulting in the formation of N-C-O-type groups, which affect the catalytic activity.
Article
Chemistry, Multidisciplinary
Yuichi Okazaki, Seiji Oda, Akihiko Takamatsu, Shogo Kawaguchi, Hirofumi Tsukasaki, Shigeo Mori, Shunsuke Yagi, Hidekazu Ikeno, Ikuya Yamada
Summary: The rational design of highly active catalysts for the oxygen evolution reaction (OER) is important for energy-conversion applications. Postspinel-structured oxides, CaB2O4, exhibit higher OER activities due to their lower charge-transfer resistances. A density-functional-theory calculation suggests a novel mechanism of lattice oxygen pairing with adsorbed oxygen, which results in the lowest theoretical OER overpotential.
Article
Chemistry, Physical
Thorsten O. Schmidt, Andre Wark, Richard W. Haid, Regina M. Kluge, Shinya Suzuki, Kazuhide Kamiya, Aliaksandr S. Bandarenka, Jun Maruyama, Egill Skulason
Summary: This study successfully mimics the water oxidation reaction of Photosystem II by developing manganese oxide nanosheets as affordable and abundant electrocatalysts. Detailed investigation reveals that the detected activity at the nanosheet edges is crucial for the enhanced performance of the catalyst.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Environmental
Jianfeng Tian, Kang Zhong, Xingwang Zhu, Jinman Yang, Zhao Mo, Jinyuan Liu, Jiachao Dai, Yuanbin She, Yanhua Song, Huaming Li, Hui Xu
Summary: The selectivity and activity of photocatalytic CO2 reduction can be effectively enhanced by modulating the reduction pathway of CO2 molecules and promoting the separation of photogenerated charges. Au nanoclusters (Au NCs) modified BiOBr nanosheets catalyst with highly exposed Au active sites showed excellent photocatalytic activity and nearly double increase in the rate of CO emission.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Takwa Chouki, Manel Machreki, Iwona A. Rutkowska, Beata Rytelewska, Pawel J. Kulesza, Georgi Tyuliev, Moussab Harb, Luis Miguel Azofra, Saim Emin
Summary: The electrocatalytic reduction of nitrate ion (NO3-) to ammonia (NH3) using iron phosphide catalysts, FeP and Fe2P, has been demonstrated for the first time. The Fe2P catalyst exhibits the highest Faradaic efficiency (96%) for NH3 generation with a yield of 0.25 mmol h-1 cm-2 or 2.10 mg h-1 cm-2 at -0.55 V vs. reversible hydrogen electrode (RHE). Recycling tests confirmed the excellent stability of Fe2P and FeP catalysts during the NO3- reduction at -0.37 V vs. RHE. Density functional theory (DFT) calculations suggest that Fe2P phase shows excellent performance as an efficient noble metal-free catalyst for NH3 generation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Parag M. M. Shah, Liam A. A. Bailey, David J. J. Morgan, Stuart H. H. Taylor
Summary: Iron-manganese mixed metal oxide catalysts with different Fe:Mn ratios were synthesized and evaluated for total propane oxidation. The Fe0.50Mn0.50Ox catalyst showed the highest activity due to increased surface area and the formation of a Mn2O3 phase. The choice of precipitating agent was found to affect the activity, with the hydroxide-precipitated catalysts generally being more active.
Article
Chemistry, Multidisciplinary
Jie Chen, Qiang Zhou, Luchao Yue, Donglin Zhao, Longcheng Zhang, Yongsong Luo, Qian Liu, Na Li, Abdulmohsen Ali Alshehri, Mohamed S. Hamdy, Feng Gong, Xuping Sun
Summary: Electrocatalytic nitrate reduction to produce ammonia is an attractive method for environmental mitigation. This study introduces a highly active Co-NCNT nanohybrid catalyst for efficient ammonia synthesis in alkaline solution, demonstrating excellent electrochemical stability.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Juan Bai, Jun Mei, Jing Shang, Xin Mao, Dongchen Qi, Ting Liao, Aijun Du, Ziqi Sun
Summary: It is well known that the activity of electrocatalytic oxygen evolution reaction (OER) depends on the active centers of electrocatalysts. In this study, molybdenum oxide catalysts were used as a representative model and it was found that the inactive molybdenum sites can be regenerated as synergistic active centers for promoting OER through phosphorus-modulated defective engineering. The optimal catalyst achieved an overpotential of 287 mV for a current density of 10 mA cm(-2) with only 2% performance decay after 50 hours of continuous operation. This work provides insights into activating inert metal sites on oxide catalysts to enhance their electrocatalytic properties.
Article
Materials Science, Multidisciplinary
Amir A. Rezaie, Eunsoo Lee, Diana Luong, Johan A. Yapo, Boniface P. T. Fokwa
Summary: Research has shown that van der Waals metal chalcogenide Fe3GeTe2 possesses high activity in both basal planes and edge sites for the hydrogen evolution reaction. Treatment methods can significantly improve the HER activity, opening up new avenues for designing high-performing electrocatalysts using related iron-based van der Waals materials, composites, and surface functionalization.
ACS MATERIALS LETTERS
(2021)
Article
Chemistry, Physical
Siqi Ji, Tianyang Liu, Leipeng Leng, Hongxue Liu, Jiangwei Zhang, Mingyang Zhang, Qian Xu, Junfa Zhu, Man Qiao, Yu Wang, J. Hugh Horton, Zhijun Li
Summary: In this study, a facile protein-mediated approach was used to synthesize highly efficient atomically dispersed iron electrocatalysts. These catalysts exhibited exceptional activity and stability in the oxygen reduction reaction and showed promising performance in a zinc-air battery.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Qian Zheng, Shuxin Tu, Jingtao Hou, Chunlan Ni, Mengqing Wang, Lu Ren, Mingxia Wang, Menghua Cao, Shuanglian Xiong, Wenfeng Tan
Summary: The study showed that Fe-Mn binary oxide maintains excellent stability for As(III) removal, attributed to the rapid return of aqueous Fe(II) and Mn(II) to the solid surface and subsequent formation of new mineral phases mediated by Fe and Mn oxides.
Article
Chemistry, Physical
Lin Hu, Hemanth Somarajan Pillai, Corbin Feit, Kaige Shi, Zhengning Gao, Parag Banerjee, Hongliang Xin, Xiaofeng Feng
Summary: In this study, Ru nanoparticles prepared by atomic layer deposition were found to exhibit size-dependent activity, with the highest specific activity observed on 3.8 nm particles and a 5-fold decrease in activity on 8.4 nm particles. Density functional theory calculations and free energy analysis identified the Ru D-5 step site on 4 nm particles as the active site for NRR on Ru.
ACS ENERGY LETTERS
(2022)
Article
Engineering, Mechanical
Hongyu Liang, Xinjie Chen, Yongfeng Bu, Meijuan Xu, Gang Zheng, Kaixiong Gao, Xijun Hua, Yonghong Fu, Junyan Zhang
Summary: This study proposes a new method of using graphene as an additive lubricant, where graphene is in-situ exfoliated from a friction pair and exists in a thinner and less aggregated form. This enables the realization of superlubricity.
Article
Materials Science, Multidisciplinary
Yongfeng Bu, Qin Kang, Wenya Jiang, Renxing Shi, Yan Zhou, Tao Sun, Lianshan Sun, Hongyu Liang
Summary: A new strategy for achieving high-density carbon with high volumetric energy and power densities has been developed by compressing surplus pores between dual-scale carbon units. The optimized carbon, packed with ordered nano- and micro-carbon units, exhibits excellent volumetric performance with high energy density and good power capability.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Physical
Tao Sun, Chenxi Li, Yupeng Bao, Jun Fan, Enzhou Liu
Summary: The two urgent challenges of the 21st century are increased global demand for energy and enhanced deterioration of the environment. Green and renewable energy conversion technology, specifically hydrogen energy through water splitting, is considered as a promising approach to address these challenges. However, the efficiency of photocatalysts remains a major obstacle to the large-scale application of this technology.
ACTA PHYSICO-CHIMICA SINICA
(2023)
Article
Engineering, Environmental
Zhuonan Lei, Xiaofei Cao, Jun Fan, Xiaoyun Hu, Jun Hu, Neng Li, Tao Sun, Enzhou Liu
Summary: In this study, a ternary In2.77S4/NiS2/g-C3N4 S-scheme heterojunction was constructed by synthesizing In2.77S4/NiS2 heterojunction and introducing it to the surface of g-C3N4. The ternary heterojunction exhibited excellent light harvesting ability and improved charge carrier separation and migration compared to its components. Photocatalytic tests showed significantly higher H2 production rate for In2.77S4/NiS2/g-C3N4 compared to g-C3N4, In2.77S4, and In2.77S4/g-C3N4. Further investigation revealed the charge transfer mechanism and enhanced surface reactions due to NiS2 and more electro-chemical active sites provided by In2.77S4/NiS2. This work provides an effective method for designing novel g-C3N4-based S-scheme heterojunctions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Dong-Nan Yu, Zi-Xuan Yao, Fahime Bigdeli, Xue-Mei Gao, Xun Cheng, Jing-Zhe Li, Jing-Wen Zhang, Wei Wang, Zong-Jie Guan, Yongfeng Bu, Kuan-Guan Liu, Ali Morsali
Summary: The first mixed-valence nanocluster CuI/CuII with the highest percentage of CuII ions was synthesized. It exhibits strong photothermal conversion ability and broad light absorption range.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Wenqian Huang, Wenhua Xue, Xiaoyun Hu, Jun Fan, Chunni Tang, Yan Shi, Enzhou Liu, Tao Sun
Summary: This study fabricated a Co9S8/TiO2 heterojunction photocatalyst to optimize light absorption, charge carrier separation, and surface reaction efficiency, and demonstrated superior H2 evolution performance and stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hongyu Liang, Tianqiang Yin, Manqiang Liu, Caihong Fu, Xiaojie Xia, Shijing Zou, Xijun Hua, Yonghong Fu, Yongfeng Bu
Summary: By introducing 2-10 wt % water, the hydrogen bonding structure of the choline chloride-based ionic liquid analogue (ILA) can be adjusted, resulting in a macroscale super lubricant with high load (160 MPa) and low coefficient of friction (0.006-0.008). In situ Raman analysis reveals that the competitive exchange between external water and crystalline water induces weak hydrogen bond-dominated incomplete hydration, providing a low-shear interface and considerable load-carrying capacity within the lubricant. This study unveils the principle of water mediation in high-viscosity ILAs and offers insights into the design of ILA-based super lubrication materials with high load-carrying capacity.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Xianhui Liu, Lele Jia, Tongqing Zou, Chengjie Cai, Bohao Liang, Jinxin Xiong, Jie Chao, Biao Feng, Lijun Yang, Shaozhou Li
Summary: The anomalously fast growth of the silicon oxide layer in the Cu/Si system under humidity conditions is investigated. The addition of Cu atoms in Cu/Si leads to geometric distortion of the Si lattice, which affects the charge transfer to absorbed H2O and decreases its dissociation energy. This results in the formation of more defective SiOx layer for the Cu/Si system under humidity conditions. Furthermore, the presence of such an oxide structure and the catalytic effect of Cu enhance the oxidation rate of Si and result in the fast growth of the oxide layer on Cu/Si at room temperature.
Review
Biochemistry & Molecular Biology
Chenguang Li, Yupeng Bao, Enzhou Liu, Binran Zhao, Tao Sun
Summary: Water splitting technology is an efficient method to produce hydrogen as an energy carrier. The review focuses on the recent progress of non-precious metal-based materials, particularly Ni (Co, Fe)-based layered double hydroxides (LDH) two-dimensional (2D) materials, for water splitting. It discusses different strategies for modifying LDH materials to enhance electrocatalytic performance and highlights advancements in characterizing LDH's electronic structure and catalytic mechanism.
Review
Chemistry, Multidisciplinary
Tao Sun, Wenjie Zang, Jianguo Sun, Chenguang Li, Jun Fan, Enzhou Liu, John Wang
Summary: Non-carbon-supported single-atom electrocatalysts (SACs) have attracted great interest for water splitting due to their unique bond and coordination properties, as well as their superior and tunable catalytic performance compared to carbon-supported SACs and commercial catalysts. The structure, surficial chemical groups, vacancy defects of non-carbon host materials, as well as the properties and population of single atoms, play important roles in the electrocatalytic performance of these SACs. The wide range of host materials and single atom types present limitless possibilities for the design of SACs with tunable structures and electrocatalysis behaviors.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Chengxuan Ge, Chenghui Mao, Jie Zhao, Guochang Li, Lijun Yang, Qiang Wu, Xizhang Wang, Zheng Hu
Summary: By replacing nitrate ions with 1,4-benzenedicarboxylic anions, the interlayer distance of NiCo-LDH is expanded, leading to enhanced rate performance for storing large cations like Na+, Mg2+, and Zn2+. The increased interlayer distance reduces charge-transfer and Warburg resistances, improving the rate performance of LDH electrodes. This study provides an effective strategy to improve the storage performance of large cations in LDH electrodes.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Hongyu Liang, Yan Zhou, Renxing Shi, Wenya Jiang, Kuanguan Liu, Qian Xu, Ming Zhang, Hao Zhuang, Huaming Li, Yongfeng Bu
Summary: This study reports the use of an amphoteric imidazole (IMZ) additive to improve the voltage and performance of water-adsorbed ionic liquid analogues (ILAs) for supercapacitors. The addition of 2 wt % IMZ increases the voltage from 1.1 V to 2.2 V, and also improves the capacitance and energy density. In situ Raman analysis reveals that IMZ interacts with other ligands to change the polarity of the solvent shells, thereby suppressing the activity of absorbed water and increasing the voltage.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Yiqun Chen, Minqi Xia, Cao Zhou, Yan Zhang, Changkai Zhou, Fengfei Xu, Biao Feng, Xizhang Wang, Lijun Yang, Zheng Hu, Qiang Wu
Summary: In this study, a dual single-atom catalyst was designed based on theoretical optimization, achieving industrial-level syngas production via CO2RR. The catalyst showed stable CO selectivity, high current density, and tunable CO/H2 ratio, demonstrating great potential for practical applications.
Article
Chemistry, Physical
Meiling Zhang, Fangli Zhao, Keting Feng, Xiaoyun Hu, Jun Fan, Tao Sun, Enzhou Liu
Summary: In this study, nanosized Co9Se8 and TiO2 particles were fabricated using a hydrothermal process, followed by the construction of various Co9Se8/TiO2 heterojunctions using a physical solvent evaporation strategy. The photocatalytic H2 evolution experiment demonstrated that the H2 evolution rate over 15%-Co9Se8/TiO2 reached 8282.7 μmol∙g-1∙h-1 under 300 W Xe lamp irradiation, using 20% triethanolamine (TEOA) as the sacrifice agent. This rate was 29.9-fold and 95.8-fold higher than that of pristine TiO2 and Co9Se8, respectively. The enhanced photocatalytic performance was attributed to improved light absorption ability and the formation of S-scheme heterojunctions, which promoted the separation and migration of photo-induced charges.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Guanghai Chen, Jia Liu, Shenglan Ma, Changkai Zhou, Jietao Jiang, Zhen Shen, Lijie Yan, Yue Guo, Lijun Yang, Qiang Wu, Xizhang Wang, Zheng Hu
Summary: This study demonstrates the confinement of CuO inside hierarchical N-doped carbon nanocages, resulting in loss-free pulverization of active components, improved charge storage, and enhanced cycling performance for potassium storage. The yolk-shelled CuO@hNCNC hybrids exhibit high specific capacity and long-term stability, outperforming state-of-the-art values. This research provides insights into developing high-performance anodes for rechargeable batteries.
MATERIALS HORIZONS
(2023)
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.
