Article
Chemistry, Multidisciplinary
Yin Zhou, Qianfeng Gu, Yiju Li, Lu Tao, Hao Tan, Kun Yin, Jinhui Zhou, Shaojun Guo
Summary: This study demonstrates the potential of cesium lead bromide perovskite (CsPbBr3) nanocrystals as a high-performance cathode for Li-O-2 batteries, achieving the lowest charge overpotential and best cycling performance among reported perovskite-based Li-O-2 cells, setting a new benchmark. The density functional theory (DFT) calculations further support that the rate-limiting step in the oxygen evolution reaction (OER) process is the decomposition of LiO2, and the weak adsorption strength between CsPbBr3 surfaces and LiO2 contributes to the low charge overpotential in CsPbBr3-based Li-O-2 batteries.
Article
Materials Science, Multidisciplinary
Hua Wang, Liangliang Liu, Xiao Liu, Yu Jia, Peng Zhang, Yong Zhao
Summary: By introducing anthraquinone derivatives as superoxide trappers, the stability of superoxides was successfully modulated, leading to enhanced ORR activity and stability.
SCIENCE CHINA-MATERIALS
(2021)
Article
Chemistry, Applied
Yin Zhou, Yong Zhao, Zhenjie Liu, Zhangquan Peng, Li Wang, Wei Chen
Summary: This study proposes a strategy to achieve low charge overpotential by confining Li2O2 growth in the mesoporous channels of cathodes, extending the diffusion distance of LiO2 in the channels and facilitating further reduction to Li2O2. The trapped Li2O2 in the channels ensures a good Li2O2/cathode contact interface, leading to a low charge overpotential and good cycle life.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Philipp Erdmann, Lutz Greb
Summary: The global Lewis acidity and effective Lewis acidity often have poor correlation, mainly due to the influence of deformation energy. Through theoretical and experimental analysis, the relationship between global Lewis acidity and effective Lewis acidity is identified.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Alan G. Li, Karthik Mayilvahanan, Alan C. West, Matthias Preindl
Summary: The DNRC model utilizes a novel physics-based diffusion component and N resistor-capacitor pairs to accurately characterize internal resistance and diffusion overpotentials of batteries in the time domain. Experimental validation shows an average absolute percent error of only 0.3% under different charge-discharge states, providing a new basis for real-time estimation and degradation reduction or diagnosis in battery management systems.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Shoichi Matsuda, Manai Ono, Hitoshi Asahina, Shin Kimura, Emiko Mizuki, Eiki Yasukawa, Shoji Yamaguchi, Yoshimi Kubo, Kohei Uosaki
Summary: In this study, it is revealed that the reaction efficiency of the negative lithium electrode largely decreases due to chemical crossover from the positive oxygen electrode side. By fabricating an ultra-lightweight flexible ceramic-based solid-state separator, the lithium electrode is effectively protected against chemical crossover without diminishing the energy density of LOBs. This study sheds light on the direction for the practical implementation of LOBs with high energy densities and long cycle lives.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Gerald Gourdin, Samantha Mendez, Vicky Doan-Nguyen
Summary: Lithium-sulfur batteries have high theoretical capacities but suffer from low electronic conductivity of sulfur and diffusion of soluble polysulfides. Introducing copper nanowires into the composite cathode can improve electronic conductivity and provide electrostatic anchoring for polysulfide anions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Electrochemistry
Misun Hong, Hye Ryung Byon
Summary: Singlet oxygen (O-1(2)) plays a critical role in parasitic side reactions and poor reversibility in non-aqueous Li-O-2 batteries. Efforts have been made to understand the formation and elimination of O-1(2) and to trap and eliminate it using molecular agents. Promising physical quenchers that convert O-1(2) to O-3(2) have been identified for improving the cycling performance of Li-O-2 cells.
BATTERIES & SUPERCAPS
(2021)
Article
Chemistry, Multidisciplinary
Zhuang Sun, Xiaohui Zhao, Wujie Qiu, Bin Sun, Fan Bai, Jianjun Liu, Tao Zhang
Summary: The aprotic Li-O-2 battery (LOB) has the potential to achieve the highest energy density among rechargeable batteries. However, the growth of lithium peroxide (Li2O2) on the cathode surface limits its actual capacity and cycle life. By optimizing the electronic structure through O-Ce hybridization, a non-crystalline Li2O2 film of thickness >400 nm can be formed, resulting in improved performance. This study discovers a mechanism involving Ce-oxygen reactions that form a high-energy cerium oxide catalyst, facilitating charge transfer and leading to the growth of submicron-thick Li2O2 shells. As a result, the rechargeable capacity of LOB is significantly increased to 10,000 mAh g(-1), with enhanced cyclability and reduced charge-discharge overpotential.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Applied
Yu Yan, Chaozhu Shu, Ruixin Zheng, Minglu Li, Zhiqun Ran, Miao He, Longfei Ren, Dayue Du, Ying Zeng
Summary: The study presents a composite anode with oxygen vacancy-rich TiO2 nanoparticles uniformly dispersed on Ti3C2Tx, which effectively guides and modulates lithium growth behavior, leading to improved performance in lithium-oxygen batteries.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Environmental Sciences
Yun Pei, Junxian Qin, Jun Wang, Yun Hu
Summary: A series of Fe-based metal organic framework derived materials were prepared by thermal treating MIL-100(Fe) in nitrogen atmosphere for efficient removal of oxygenated volatile organic compounds (OVOCs). The partially carbonized M-350 material exhibited superior adsorption performance and stability, with significantly higher adsorption capacity compared to traditional activated carbon and other adsorbents.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Chuan Zhao, Zhongfu Yan, Bo Zhou, Yu Pan, Anjun Hu, Miao He, Jing Liu, Jianping Long
Summary: In this study, the researchers constructed a metal-organic framework, UIO-66-NH2, containing Lewis base sites, and comprehensively investigated the pivotal mechanism of Lewis base sites in promoting the electrocatalytic reaction processes of lithium-oxygen batteries (LOBs). The density functional theory (DFT) calculations showed that the Lewis base sites acted as electron donors and enhanced the activation of O-2/Li2O2 during the discharged-charged process, leading to accelerated reaction kinetics of LOBs. Moreover, in situ Fourier transform infrared spectra and DFT calculations demonstrated that the Lewis base sites converted the Li2O2 growth mechanism from surface-adsorption growth to solvation-mediated growth by capturing Li+, thus weakening the adsorption energy of UIO-66-NH2 towards LiO2. The LOB based on UIO-66-NH2 showed high discharge specific capacity, low discharged-charged overpotential, and long cycling life.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Wenbo Lu, Zhaopeng Li, Huaifang Shang, Lifang Jiao
Summary: Contemporary social problems, such as energy shortage and environmental pollution, require the development of green energy storage technologies in the context of sustainable development. Traditional lithium-ion batteries have reached a bottleneck, while conversion-type lithium metal batteries have attracted attention due to their high theoretical capacity. This review summarizes conversion-based lithium metal batteries using examples of Li-S, Li-O-2, and Li-SOCl2 batteries and discusses key challenges and improvement strategies for next-generation high-performance rechargeable batteries.
Article
Chemistry, Inorganic & Nuclear
Yining Li, Shimei Wu, Chilin Liu, Zhiting Liu, Wei Yang, Yufei Zhang, Haosen Fan
Summary: In this study, a cobalt-based sulfide nanosheet structure (Co9S8/NC) was synthesized via a self-template topochemical and phase transformation process. The designed 2D sheet structure and nitrogen-doped carbon framework contribute to the excellent rate capability and stable cycling performance of Co9S8/NC as the anode material for sodium ion batteries.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Xuanxuan Bi, Jiantao Li, Mouad Dahbi, Jones Alami, Khalil Amine, Jun Lu
Summary: Lithium-oxygen batteries have high energy density and potential as an alternative to lithium-ion batteries. The addition of lithium iodide can enhance the kinetics during the charging process. Despite numerous studies, the role of this additive remains under investigation.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Qian-Feng Gu, Jing-Hui He, Dong-Yun Chen, Hui-Long Dong, You-Yong Li, Hua Li, Qing-Feng Xu, Jian-Mei Lu
ADVANCED MATERIALS
(2015)
Article
Polymer Science
Chun-Yu Zhang, Jing-Hui He, Cai-Jian Lu, Qian-Feng Gu, Lin-Xin Wu, Quan Liu, Hua Li, Qing-Feng Xu, Jian-Mei Lu
Article
Materials Science, Multidisciplinary
You-Hao Zhang, Pei-Yang Gu, Jie-Bo Zhou, Yu-Jie Xu, Wu Liu, Qian-Feng Gu, Dong-Yun Chen, Na-Jun Li, Qing-Feng Xu, Jian-Mei Lu
JOURNAL OF MATERIALS CHEMISTRY C
(2014)
Article
Chemistry, Physical
Yin Zhou, Dafeng Yan, Qianfeng Gu, Shenghua Zhu, Li Wang, Honggen Peng, Yong Zhao
Summary: Research has shown that NiFe layered double hydroxides with Ni vacancies as cathode catalysts exhibit excellent performance in Li-O-2 batteries, reducing charging overpotentials and providing a strategy for designing high-performance cathode catalysts for Li-O-2 batteries.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Yin Zhou, Qianfeng Gu, Yiju Li, Lu Tao, Hao Tan, Kun Yin, Jinhui Zhou, Shaojun Guo
Summary: This study demonstrates the potential of cesium lead bromide perovskite (CsPbBr3) nanocrystals as a high-performance cathode for Li-O-2 batteries, achieving the lowest charge overpotential and best cycling performance among reported perovskite-based Li-O-2 cells, setting a new benchmark. The density functional theory (DFT) calculations further support that the rate-limiting step in the oxygen evolution reaction (OER) process is the decomposition of LiO2, and the weak adsorption strength between CsPbBr3 surfaces and LiO2 contributes to the low charge overpotential in CsPbBr3-based Li-O-2 batteries.
Article
Chemistry, Multidisciplinary
Yihao Zhou, Jinyi Dong, Chao Zhou, Qiangbin Wang
Summary: Using three-dimensional DNA origami as the building block, it is practical to construct finite hierarchical nanostructures with complicated conformations through orthogonal and directional bonding.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Yin Zhou, Qianfeng Gu, Kun Yin, Yiju Li, Lu Tao, Hao Tan, Yong Yang, Shaojun Guo
Summary: By alloying Pt with M (M=Au, Ru) to tune the charge overpotential, high-performance Li-O-2 batteries can be achieved. The highly electronegative Au can capture more e(g) electrons from Pt, leading to lower e(g) occupancy of Pt in PtAu alloys, which decreases the energy barrier and enhances cathode performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Kai Song, Junfeng Lin, Xuwei Song, Mingliang Zhang, Qianfeng Gu, Yaping Zang, Daoben Zhu
Summary: Creating organometallic molecular junctions through terminal alkynes and measuring their conductance at the single molecule level reveals the potential for precise manipulation of metal-molecule coordination. The formation of linear organometallic -C=C-Ag- C=C- wires between Ag or Au electrodes is driven by strong Ag-C sigma bonding. Altering the structures of the alkyne ligands allows for precise modulation of the conductance of these junctions. This study provides a versatile bottom-up approach for constructing organometallic nanostructures and investigating their chemical and conducting properties.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Multidisciplinary Sciences
Yin Zhou, Qianfeng Gu, Kun Yin, Lu Tao, Yiju Li, Hao Tan, Yong Yang, Shaojun Guo
Summary: A cascaded orbital-oriented hybridization method was reported, which lowered the d band energy level of Pd atoms in intermetallic Pd3Pb by alloying hybridization and reduced the antibonding energy levels and orbital interaction towards LiO2 through intermolecular orbital hybridization. The Pd3Pb-based Li-O-2 batteries exhibited a low OER overpotential and superior cycle stability, making them one of the best catalysts reported.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Nanoscience & Nanotechnology
Kedi Li, Jieying Hu, Qianfeng Gu, Jun He, Yung-Kang Peng, Zhengtao Xu
Summary: In order to remove persistent perfluoropollutants from the environment, the researchers used crystal engineering approaches to develop a stable porous coordination framework system. By utilizing a designer linker molecule, they were able to create an effective adsorbent for perfluorooctanoic acid and perfluorooctanesulfonic acid.The adsorbent demonstrated a high apparent rate constant and large maximum uptake capacity for both pollutants.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Qianfeng Gu, Jiajia Zha, Cailing Chen, Xin Wang, Wenyan Yao, Jiahe Liu, Fangyuan Kang, Jinglun Yang, Yang Yang Li, Dangyuan Lei, Zhiyong Tang, Yu Han, Chaoliang Tan, Qichun Zhang
Summary: The use of chiral covalent organic frameworks (COFs) as active elements in photodetectors to directly identify circularly polarized light (CPL) can meet the requirement of integration and miniaturization of the as-fabricated devices. In this study, two isoreticular chiral 2D COFs (CityU-7 and CityU-8) were designed and synthesized to enhance optical absorption and engender chirality for direct CPL detection. Both COFs exhibited distinguishable photoresponse towards left-handed and right-handed circularly polarized light at 405 nm.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qianfeng Gu, Xiangqian Lu, Cailing Chen, Renjie Hu, Xin Wang, Guohan Sun, Fangyuan Kang, Jinglun Yang, Xiang Wang, Jinghang Wu, Yang Yang Li, Yung-Kang Peng, Wei Qin, Yu Han, Xiaogang Liu, Qichun Zhang
Summary: In this study, three p-phenylenediacetonitrile-based COFs were synthesized and transformed into persistent radical forms through heat treatment, accompanied by observable changes. Theoretical simulation revealed that lower total energy and nonzero spin density are the key factors for the persistence of COF radicals and polarized spin distributions.
Article
Chemistry, Inorganic & Nuclear
Youyi Xia, Junmin Wan, Qianfeng Gu
