Article
Chemistry, Multidisciplinary
Md Gius Uddin, Susobhan Das, Abde Mayeen Shafi, Vladislav Khayrudinov, Faisal Ahmed, Henry Fernandez, Luojun Du, Harri Lipsanen, Zhipei Sun
Summary: Engineering the dipole orientation and symmetry of materials by integrating 1D nanowires with 2D layered materials is reported. This mixed-dimensional heterostructure enhances optical responses and breaks the symmetry of materials, leading to strong optical anisotropy.
Article
Chemistry, Multidisciplinary
Qiong Sun, Yun Tong, Pengzuo Chen, Baocheng Zhou, Xiaoping Dong
Summary: This research reported a facile and universal strategy to develop a series of bimetallic heterostructures as highly efficient catalysts for cathodic hydrogen evolution reaction (HER) and anodic oxygen evolution reaction (OER). The experimental results showed that the optimized heterostructures significantly improved catalytic activity in the HER/OER process, resulting in very low cell voltage for the electrolyzer.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Physical
Claire Goldmann, Marta De Frutos, Eric H. Hill, Doru Constantin, Cyrille Hamon
Summary: The study introduces a simple aqueous approach to breaking the inversion symmetry of silver nanorods by controlling the addition of DMSO, showcasing the potential of DMSO for controlling complex nanostructure synthesis. Simulations and experiments demonstrate the impact of DMSO adsorption on various surface interactions, affecting the deposition kinetics of silver.
CHEMISTRY OF MATERIALS
(2021)
Article
Engineering, Environmental
Ping-Ping Sun, Yu-Hang Zhang, Hongwei Shi, Fa-Nian Shi
Summary: Two new 3D 3d-4f bimetal organic frameworks (ZnCe-MOF and CuCe-MOF) were synthesized through hydrothermal method. These MOFs have monoclinic symmetry in the P2(1)/n space group and were coated with PANI using the electrodeposition method to improve electrical conductivity. The heterostructure of MOF coated with PANI shows promising applications in portable energy storage devices, with specific capacitance reaching up to 724.4F g(-1) and 713.2F g(-1) at 1 A g(-1).
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Henglei Jia, Yuanyuan Yang, Tsz Him Chow, Han Zhang, Xiyue Liu, Jianfang Wang, Chun-yang Zhang
Summary: A general strategy is developed to synthesize asymmetric Au-Cu hybrid nanostructures, achieving significantly improved performance in electrocatalysis. The excellent electrocatalytic performances are attributed to the special design of the Au-Cu Janus architectures, tandem catalysis mechanism, and high-index facets on Au nanocrystals. This research provides a new approach to synthesize various hybrid Janus nanostructures, facilitating the study of structure-function relationship in the catalytic process and the rational design of efficient heterogeneous electrocatalysts.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Kai Liu, Feng Jin, Xingchang Zhang, Kuan Liu, Zixun Zhang, Enda Hua, Jinfeng Zhang, Huan Ye, Guanyin Gao, Chao Ma, Lingfei Wang, Wenbin Wu
Summary: This study systematically investigates and explores the enhancement of ferroelectricity in hafnium oxides by anisotropic strain-mediated symmetry engineering. The results show that different types of anisotropic strains can affect the ferroelectricity by tuning the structural symmetry and phase ratio.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Applied
Yuhong Li, Yaqi Yang, Yutian Huang, Jiejun Li, Pengcheng Zhao, Junjie Fei, Yixi Xie
Summary: In this study, a CA electrochemical sensor was developed by modifying a glassy carbon electrode with bimetallic Pd-Ru nanoparticles decorated N-doped spongy porous carbon. The sensor showed high sensitivity and repeatability, and could detect CA in actual samples of red wine, strawberries, and blueberries, providing a novel approach for food analysis.
Article
Chemistry, Multidisciplinary
Ivan A. Moreno-Hernandez, Michelle F. Crook, Justin C. Ondry, A. Paul Alivisatos
Summary: Researchers developed a new method that utilizes redox species to scavenge radicals and control electrochemical potential in situ, enabling precise control over liquid environment for near-atomic resolution observation of electrochemical structural dynamics. This approach shows promise for generalization across various chemical systems and provides unprecedented detail for the study of complex nanoscale dynamics.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Joon Ho Park, Seon-Mi Jin, Eunji Lee, Hyun S. Ahn
Summary: The research introduces an electrochemical method for synthesizing core-shell nanoparticles directly on electrodes without surfactants. By selectively depositing 1(st)-row transition metals onto gold cores, precise control of shell thickness is achieved. The nanoparticle-decorated electrodes demonstrated stable catalysis with low overpotential in alkaline oxygen evolution, showcasing the potential of this metal-on-metal core-shell synthesis approach.
Article
Chemistry, Physical
Yalambaku Rajesh, Debarun Dhar Purkayastha, M. Ghanashyam Krishna
Summary: ZnO nano/micro-rod arrays are grown on metal and metal oxide thin films as seed layers using hydrothermal processing, showing differences in formation time and size on different seed layers. The arrays exhibit hydrophobic nature on all seed layers, with superhydrophobic properties on ZnO. UV irradiation leads to a transition from hydrophobic to hydrophilic behavior in the arrays.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Elisabeth Hornberger, Valentina Mastronardi, Rosaria Brescia, Pier Paolo Pompa, Malte Klingenhof, Fabio Dionigi, Mauro Moglianetti, Peter Strasser
Summary: This research presents a seed-templated approach for the preparation of ultrasmall octahedral platinum nanoparticles with a size of 6.7 nm, demonstrating higher catalytic activity and stability compared to traditional spherical platinum nanoparticles. The octahedral shape shows a higher electrochemical active surface area and specific ORR activity in the oxygen reduction reaction compared to spherical particles of the same size.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Xing Zhang, Ninh Tran, Thomas Egan, Bhanu Sharma, Gang Chen
Summary: The size uniformity of gold nanorods can be effectively improved by using a multi-step growth method, which also allows for tuning of their optical properties. This approach can enhance the practical applications of GNRs and provide new insights into their growth mechanisms.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Analytical
Haonan Le, Richard G. Compton
Summary: This study presents a theory for electrolysis at electrode surfaces modified by an electroactive enzyme layer, comparing immobilization on flat and porous surfaces. The use of porous electrodes is found to significantly improve turnover rates due to increased effective surface coverage. The role of electrode potential in controlling thermodynamics of substrate binding and the observation of potential dependent Michaelis constants are quantified, allowing for process optimization based on four distinct classes of voltammetric responses.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Thermodynamics
Guofu Chen, Baoyi Hu, Zhulin Jiang, Zhaoliang Wang, Dawei Tang
Summary: In this study, the thermal transport behavior of a 1-D Si transistor and Si-based heterojunction interfaces under the hotspot effect was systematically investigated. The results showed a strong non-equilibrium effect within the hotspot, with different phonon modes exhibiting different temperatures and heat fluxes. The interfacial thermal resistance of the heterojunction further increased the hotspot temperature. The study also explored the heat dissipation effect of different substrate combinations, revealing that diamond and BN had lower interfacial thermal conductance. These findings provide useful insights for improving the accuracy of transistor-level thermal simulations.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Multidisciplinary
Poramed Wongjom, Wattana Tuichai, Attaphol Karaphun, Chaiwat Phrompet, Sujittra Daengsakul, Samuk Pimanpang, Pairot Moontragoon, Pornjuk Srepusharawoot, Chaval Sriwong, Chesta Ruttanapun
Summary: A CuO-Cu2O@rGO nanocomposite was successfully prepared through a seed-mediated growth process, demonstrating good electrochemical and energy storage performance. The doping of rGO influenced the electrical conductivity and synergistic interactions in charge-discharge processes.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Physical
Yanan Yang, Jiawei Zhang, Yajing Wei, Qiaoli Chen, Zhenming Cao, Huiqi Li, Jiayu Chen, Jueli Shi, Zhaoxiong Xie, Lansun Zheng
Article
Multidisciplinary Sciences
Zhenming Cao, Qiaoli Chen, Jiawei Zhang, Huiqi Li, Yaqi Jiang, Shouyu Shen, Gang Fu, Bang-an Lu, Zhaoxiong Xie, Lansun Zheng
NATURE COMMUNICATIONS
(2017)
Article
Chemistry, Physical
Qiaoli Chen, Zhenming Cao, Guifen Du, Qin Kuang, Jin Huang, Zhaoxiong Xie, Lansun Zheng
Article
Chemistry, Multidisciplinary
Guifen Du, Jiawei Zhang, Qiaoli Chen, Qin Kuang, Zhaoxiong Xie
CHEMICAL COMMUNICATIONS
(2018)
Review
Chemistry, Multidisciplinary
Qiaoli Chen, Christian Dwyer, Guan Sheng, Chongzhi Zhu, Xiaonian Li, Changlin Zheng, Yihan Zhu
ADVANCED MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Yawei Liu, Qiaoli Chen, David A. Cullen, Zhaoxiong Xie, Tianquan Lian
Article
Chemistry, Multidisciplinary
Wei Shao, Qianqian Pan, Qiaoli Chen, Chongzhi Zhu, Weijian Tao, Haiming Zhu, Huijun Song, Xuelu Liu, Ping-Heng Tan, Guan Sheng, Tulai Sun, Xiaonian Li, Yihan Zhu
Summary: Metallic nanocrystals show potential for applications in plasmon-enhanced photocatalysis and solar energy harvesting, and a cooperative deposition strategy can enhance their activity and efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Jiawei Zhang, Guifen Du, Huiqi Li, Qiaoli Chen, Qin Kuang, Zhiyuan Jiang, Zhaoxiong Xie
Summary: This study demonstrates the significant influence of the chemical potential of growth units on the final structure of nanocrystals during crystallization. The type of reaction vessels can impact the chemical potential of growth units, leading to unexpected structural evolution of nanocrystals. Lower chemical potential growth units favor the formation of crystal nuclei with lower chemical potential during nucleation.
Article
Chemistry, Multidisciplinary
Wenxian Liu, Dong Zheng, Tianqi Deng, Qiaoli Chen, Chongzhi Zhu, Chengjie Pei, Hai Li, Fangfang Wu, Wenhui Shi, Shuo-Wang Yang, Yihan Zhu, Xiehong Cao
Summary: This study proposes a general strategy to enhance the electrocatalytic activities of 3d-transition-metal (hydro)oxides by introducing organic ligands into the framework. By involving weakly bonded ligands, the adsorption of intermediates can be optimized, leading to improved activity in the oxygen evolution reaction, for example.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yawei Liu, Wenxing Yang, Qiaoli Chen, David A. Cullen, Zhaoxiong Xie, Tianquan Lian
Summary: Decreasing the metal catalyst size to nanoclusters or single atoms is a new trend in developing more efficient photocatalytic systems. Research has shown that the size of Pt catalyst has a significant impact on light driven H2 generation efficiency in CdS-Pt heterostructures, with QE(H2) increasing as the Pt size increases.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Inorganic & Nuclear
Xiaoqian Gao, Zhi Wang, Yinling Zhang, Yaoyao Ren, Guan Sheng, Wei Shao, Qiaoli Chen
Summary: Concave one-dimensional Au-Cu nanorods with a partially ordered intermetallic structure were synthesized via a facile wet chemical method, and they demonstrated superior catalytic activity compared to non-concave samples with the same structure.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Guifen Du, Qiaoli Chen, Hui Jin, Shuifen Xie, Qin Kuang, Zhaoxiong Xie
Summary: The concave morphologies provide unique performances to noble metal nanocrystals due to their large specific surface areas, high curves, hot spots, and elevated energy facets. In this work, concave octahedral Pt-Pd alloy NCs with high-index {hhl} faces were successfully synthesized, showing excellent activity and stability in the electrooxidation of formic acid compared to their convex counterparts and commercial Pt black, thanks to the synergistic and electronic effects between Pt and Pd.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Yongdi Dong, Qiaoli Chen, Xiqing Cheng, Huiqi Li, Jiayu Chen, Xibo Zhang, Qin Kuang, Zhaoxiong Xie
NANOSCALE ADVANCES
(2020)
Review
Chemistry, Applied
Qiaoli Chen, Tianchun Cheng, Hongya Fu, Yihan Zhu
CHINESE JOURNAL OF CATALYSIS
(2019)