Article
Chemistry, Inorganic & Nuclear
Mangmang Shi, Mingshu Zhao, Qingyang Zheng, Lidong Jiao, Zhou Su, Min Li, Xiaobo Zhao, Xiaoping Song, Sen Yang
Summary: This study successfully developed metallic bismuth-bismuth oxide nanoparticles anchored on reduced graphene oxide sheets as anode materials for Aqueous alkaline batteries (AABs), and constructed CoVSx thin sheets decorated with Ni-Co layered double hydroxide sheets as cathode materials. The assembled AAB exhibited high specific capacity and rate capability, delivering outstanding energy density at a power density. Moreover, the as-synthesized Bi-based electrode also showed excellent performance in aqueous Zn alkaline batteries. The results highlight the huge potential of assembled AAB for practical applications and provide inspiration for next-generation energy storage devices.
DALTON TRANSACTIONS
(2022)
Article
Thermodynamics
Jiyuan Zhang, Yuan Yuan
Summary: The Mg-Bi-Sb system is a promising system for developing alloy-type anodes for magnesium recharge batteries and creep-resistant magnesium alloys, while Zn-Bi-Sb alloys are candidates for advanced thermoelectric materials. The phase equilibria and transformation temperatures of the Mg-Bi-Sb ternary system were studied using thermodynamic modeling and key experiments. The results were in good agreement with experimental data and provided valuable insights for the development of Mg-ZnSb and Mg-Bi-Zn-Sb systems.
THERMOCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Jing-Wei Li, Weishu Liu, Wei Xu, Hua-Lu Zhuang, Zhijia Han, Feng Jiang, Peng Zhang, Haihua Hu, Hanbin Gao, Yilin Jiang, Bowen Cai, Jun Pei, Bin Su, Qian Li, Kei Hayashi, Hezhang Li, Yuzuru Miyazaki, Xingzhong Cao, Qiang Zheng, Jing-Feng Li
Summary: This study proposes an approach to enhance the thermoelectric performance of Mg-3(Sb,Bi)(2) by mitigating the negative effect of Mg vacancies through Bi deficiency. By tuning the defect combination, the optimized composition achieved a peak zT of 1.82 at 773 K and a high conversion efficiency of 11.3% at an increment T = 473 K.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Moran Emuna, Shir Ben Shalom, Yaron Greenberg, Eyal Yahel, Aviva Melchior, Guy Makov
Summary: Experimental and thermodynamic studies were conducted on the high-pressure phase behavior of the Bi-Sb system, predicting the transformation and stability region of the alloy under pressure. The alloy was found to transform from ambient A7 structure to an incommensurate phase, with the stability region determined by spinodal curves.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Bowen Cai, Jun Pei, Jinfeng Dong, Hua-Lu Zhuang, Jinyu Gu, Qian Cao, Haihua Hu, Zihao Lin, Jing-Feng Li
Summary: The study systematically investigated the effects of dispersed SiC nanoparticles of different sizes on the electrical and thermal properties of (Bi,Sb)2Te3-based nanocomposites. It was found that smaller SiC nanoparticles enhanced electrical conductivity, while larger nanoparticles contributed to increased thermal conductivity. Additionally, compositional and processing optimization were crucial for further enhancing the performance of nanocomposites of SiC nanoparticles dispersed in (Bi,Sb)2Te3.
SCIENCE CHINA-MATERIALS
(2021)
Article
Chemistry, Physical
Longquan Wang, Naoki Sato, Ying Peng, Raju Chetty, Naoyuki Kawamoto, Duy Hieu Nguyen, Takao Mori
Summary: This work demonstrates the excellent thermoelectric performance of Mo-doped Mg3Sb2-based alloys through grain-boundary engineering and band-structure regulation synergy. The addition of Mo significantly improves the electronic transport and the simultaneous suppression of phonon transport leads to a minimum thermal conductivity of 0.52 W m(-1) K-1 at 723 K. The Mg3Sb2-based alloys achieve an outstanding ZT peak of 1.84 at 723 K and an average ZT value of 1.34 within the temperature range of 323-723 K. Furthermore, a single-leg TE module fabricated using these alloys exhibits an exceptionally high conversion efficiency of 12% under a hot-side temperature of 450 & DEG;C.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hua-Lu Zhuang, Haihua Hu, Jun Pei, Bin Su, Jing-Wei Li, Yilin Jiang, Zhanran Han, Jing-Feng Li
Summary: This study successfully improved the thermoelectric performance of (Bi,Sb)2Te3-based alloys by incorporating BiI3 and Zn as dopants. BiI3 introduced nanoscale pores that reduced thermal conductivity, while Zn improved electrical conductivity and prevented deterioration. The modulation of thermal and electrical transport properties significantly improved the ZT value.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Xinxin Wang, Bin Feng, Limei Huang, Qingfeng Fu, Weize Li, Chao Zhu, Peng Chen, Caili Yang, Yuan-Li Ding
Summary: The 3D Sb-Bi alloy/N-doped porous carbons with different Sb/Bi mole ratios exhibit superior rate capability and cyclic stability in sodium-ion batteries, with the Bi crystal showing a strong fixing effect on Sb atoms. Dissolution behavior of metallic Sb and the shuttle effect to the other side of separators lead to dead antimony with low specific capacity, highlighting the importance of element roles in the capacity attenuation of Sb-Bi alloys for sodium storage.
JOURNAL OF POWER SOURCES
(2022)
Article
Nanoscience & Nanotechnology
Hanbin Hu, Haoyi Li, Zhenghe Zhang, Wei Chen, Jikang Wang, Lifei Lian, Weimin Yang, Lei He, Yu-Fei Song
Summary: In this study, a carbon-coated Mo2C nanofiber was successfully synthesized as an anode material for lithium-ion batteries. The material exhibited excellent electrochemical stability and high rate performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Hanbin Hu, Haoyi Li, Zhenghe Zhang, Wei Chen, Jikang Wang, Lifei Lian, Weimin Yang, Lei He, Yu-Fei Song
Summary: In this study, carbon-coated Mo2C nanofiber material was successfully fabricated as an anode material for lithium-ion batteries, demonstrating excellent electrochemical stability and cycling performance. The presence of Mo vacancies in the Mo2C@C composites was found to enhance the energetics for lithium storage.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Ceramics
Zhengkai Zhang, Qirui Tao, Hui Bai, Hao Tang, Yu Cao, Yixuan Shi, Jinsong Wu, Xianli Su, Xinfeng Tang
Summary: A significant improvement in the thermoelectric performance of BiSbTe alloy was achieved through dynamically regulating excitation behavior, doping with lead, and inducing refined grains and nanostructures through melt-spinning. This led to enhanced power factor and reduced thermal conductivity, resulting in the highest ZT value and conversion efficiency compared to a commercial ZM-based module under the same temperature gradient.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Engineering, Environmental
Zhe Wang, Jin Wang, Qianjiang Mao, Shitu Yang, Dan Cheng, Zhaoliang Zhang, Hua He, Kebin Zhou
Summary: By utilizing nickel phosphides as a lithiophilic layer, this study successfully suppresses dendrite growth in lithium metal batteries, achieving high coulombic efficiency, exceptional stability, and excellent performance when paired with LiFePO4 cathode in a full cell system.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Deyu Bao, Qiang Sun, Linsen Huang, Jie Chen, Jun Tang, Dali Zhou, Min Hong, Lei Yang, Zhi-Gang Chen
Summary: Efforts have been made to improve p-type (Bi, Sb)(2)Te-3-based thermoelectric materials for commercial applications. By utilizing surface decoration and doping methods, the thermal conductivity has been decreased and the Seebeck coefficient has been increased, leading to enhanced overall performance of the thermoelectric materials.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Debora Maria Conti, Cristina Fusaro, Giovanna Bruni, Pietro Galinetto, Benedetta Albini, Chiara Milanese, Vittorio Berbenni, Doretta Capsoni
Summary: ZnS-graphene composites were synthesized and loaded onto carbon nanofibers to obtain self-standing anodes for SIBs. The ZnS nanocrystals with sphalerite structure covered by graphene sheets were successfully synthesized. The self-standing anodes showed improved specific capacity at high C-rate compared to the tape-casted example.
Article
Chemistry, Physical
Kaixuan Cui, Ping Li, Wang Zhao, Chunrong Liu, Shengwei Li, Dongmei Zhou, Xuanhui Qu
Summary: This study investigates the corrosion behavior of Li parallel to Sb-Bi-Sn LMBs and finds that the cell performance is not affected by corrosion due to the self-healing action of Bi. The results provide a new direction to inhibit the corrosion of the positive electrode and stabilize cell performance for practical application and commercialization by alloying.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Zi-Hao Chen, Rui-Ze Sun, Fei Yao, Xu-Dong Hu, Long-Xue Xiang, Hengjiang Cong, Wen-Bo Liu
Summary: The study presents an enantioselective nickel-catalyzed intramolecular reductive cross-coupling reaction to assemble CN-containing all-carbon quaternary stereocenters by desymmetrizing cyclization of aryl/alkenyl halide-tethered malononitriles. The use of an organic reductant is crucial for the selectivity and reactivity, with demonstrated applications in the synthesis of bioactive molecules and natural products.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Xiaolong Zhu, Zipei Su, Chen Wu, Hengjiang Cong, Xinping Ai, Hanxi Yang, Jiangfeng Qian
Summary: The method of intercalation and exfoliation of MoS2 using pyrene lithium (Py-Li) as a lithium reagent has been reported. The redox potential of Py-Li is located between the intercalation and decomposition potentials of MoS2, allowing precise Li+ intercalation and obtaining almost single-layer nanosheets at room temperature. This method is cost-effective, repeatable, and suitable for large-scale production.
Article
Chemistry, Multidisciplinary
Yunbo Li, Zhen Li, Hengjiang Cong, Chaoyi Yang, Gongzhen Cheng, Wei Luo
Summary: In this study, a phase-engineered Ni electrocatalyst is demonstrated to be highly efficient and stable for alkaline hydrogen oxidation reaction. The inter-regulated electronic structure and interface characteristics of the Ni catalyst contribute to the improved performance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Yunbo Li, Chaoyi Yang, Chuangxin Ge, Na Yao, Jinlong Yin, Wenyong Jiang, Hengjiang Cong, Gongzhen Cheng, Wei Luo, Lin Zhuang
Summary: In this study, a strategy to enhance the alkaline hydrogen oxidation reaction (HOR) performance of Ru in alkaline polymer electrolyte fuel cells (APEFCs) was reported. By incorporating 3d-transition metals, the conduction band minimum (CBM) level of Ru was tailored, leading to outstanding HOR performance of RuFe nanosheet with higher mass activity than Ru and commercial Pt/C catalysts.
Article
Chemistry, Multidisciplinary
Xing Liu, Dali Yang, Zhao Liu, Yunkun Wang, Yichang Liu, Shengchun Wang, Pengjie Wang, Hengjiang Cong, Yi-Hung Chen, Lijun Lu, Xiaotian Qi, Hong Yi, Aiwen Lei
Summary: Oxidation-induced strategy using highly active radical cation intermediates has shown unique reactivity for activating inert chemical bonds. Understanding the structure and reactivity patterns of radical cation intermediates is crucial for mechanistic studies and the development of new reactions. In this study, the structure and properties of indole radical cations were investigated using time-resolved transient absorption spectroscopy, in situ electrochemical UV-vis, and in situ Density functional theory (DFT) calculations. The insights gained from the properties of indole radical cations were used to successfully develop regioselective annulations of indoles under electrochemical oxidation conditions, leading to the synthesis of furo[2,3-b]indolines and furo[3,2-b]indolines with high yields and regioselectivities. These mechanistic insights will further advance oxidation-induced indole functionalizations.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Meng-Nan Zhu, Haoqing Jiang, Bo-Wen Zhang, Minrui Gao, Peng-Fei Sui, Renfei Feng, Karthik Shankar, Steven H. Bergens, Gary J. Cheng, Jing-Li Luo
Summary: In this study, a high-energy pulsed laser method was developed to enrich Bi single atoms, and it was found that Bi-C exhibited excellent performance for the CO2RR, selectively producing formate with high current density and TOF value.
Article
Chemistry, Multidisciplinary
Chengmin Li, Junyan Li, Yi Zhou, Qing Zhang, Alvaro Mayoral, Gang Li, Osamu Terasaki
Summary: A precise investigation of NbO has been conducted using advanced electron microscopy combined with powder and single crystal X-ray diffraction. It has been found that electron beams induced a structural transition, resulting in a final structure with different space group and atomic positions. Antiphase planar defects were observed in the pristine NbO and were related to the structural transformation. Theoretical calculations using density functional theory supported the experimental conclusions.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Gaoli Hu, Qi Liu, Yi Zhou, Wei Yan, Yuqing Sun, Shuang Peng, Chengbin Zhao, Xiang Zhou, Hexiang Deng
Summary: In this study, a method for synthesizing highly desirable three-dimensional cage structures in the mesopore regime was reported. These cages, with extremely large sizes, were constructed in MOF crystals and visualized by X-ray diffraction and transmission electron microscopy.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Guolong Xing, Jingjuan Liu, Yi Zhou, Shuai Fu, Jia-Jia Zheng, Xi Su, Xingfa Gao, Osamu Terasaki, Mischa Bonn, Hai I. Wang, Long Chen
Summary: Conductive metal-organic frameworks (c-MOFs) with excellent electrical conductivities and charge transport properties were synthesized using contorted hexabenzocoronene (c-HBC) derivatives as nonplanar and highly soluble ligands. Three c-MOFs with different geometries and packing modes were obtained, among which c-HBC-12O-Cu exhibited the highest intrinsic electrical conductivity and all c-HBC-based c-MOFs showed high charge carrier mobilities. This work provides a systematic and modular approach to enhance the structure and charge transport properties of c-MOFs using nonplanar and highly soluble ligands.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Wei Yu, Takeharu Yoshii, Alex Aziz, Rui Tang, Zheng-Ze Pan, Kazutoshi Inoue, Motoko Kotani, Hideki Tanaka, Eva Scholtzova, Daniel Tunega, Yuta Nishina, Kiho Nishioka, Shuji Nakanishi, Yi Zhou, Osamu Terasaki, Hirotomo Nishihara
Summary: A graphene-based material with edge-site-free framework and topological defects is proposed as a pure carbon cathode for Li-O-2 batteries. The material exhibits excellent electrochemical stability, ultra-large capacity, and unique catalytic properties of the topological defects in the formation of amorphous Li2O2. This study also suggests the use of a flexible electrode sheet without organic binders for improved cycle performance and long lifetime in Li-O-2 batteries.
Article
Multidisciplinary Sciences
Xu Luo, Dali Yang, Xiaoqian He, Shengchun Wang, Dongchao Zhang, Jiaxin Xu, Chih-Wen Pao, Jeng-Lung Chen, Jyh-Fu Lee, Hengjiang Cong, Yu Lan, Hesham Alhumade, Janine Cossy, Ruopeng Bai, Yi-Hung Chen, Hong Yi, Aiwen Lei
Summary: The authors report an on-cycle mechanism for CoCl2bpy2 catalyzed Negishi-type cross-coupling, elucidating the full catalytic cycle through multiple spectroscopic studies. Solvent and ligand were found to be crucial for generating catalytically active Co(I) species, with acetonitrile and bipyridine ligand resisting Co(I) disproportionation events. Combined investigations using Q-XAFS, EPR, IR, and DFT calculations provide comprehensive mechanistic insights into the structural information of the catalytic cobalt species and the entire Co(I)/Co(III) cycle. Additionally, the acetonitrile and bipyridine system can be extended to acylation, allylation, and benzylation reactions of aryl zinc reagents, demonstrating a broad substrate scope with a catalytic amount of Co salt. Overall, this work offers a fundamental mechanistic perspective for designing cobalt-catalyzed cross-coupling reactions.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Chaoyi Yang, Yunbo Li, Jianchao Yue, Hengjiang Cong, Wei Luo
Summary: Researchers report a sulphate functionalized Ru catalyst (Ru-SO4) with remarkable electrocatalytic performance and stability towards alkaline hydrogen oxidation reaction (HOR). The charge redistribution on the Ru interface through sulphate functionalization optimizes the adsorption energies of hydrogen and hydroxide, facilitates H-2 transfer, and tailors interfacial water molecules, resulting in a decreased energy barrier for water formation and enhanced HOR performance under alkaline electrolytes.
Article
Chemistry, Multidisciplinary
Jinxiang Ye, Lisha Li, Yiming You, Chengkang Jiao, Ziyang Cui, Yabin Zhang, Shihu Jia, Hengjiang Cong, Shanshan Liu, Hong-Gang Cheng, Qianghui Zhou
Summary: We report a strategy for the construction of both axial and planar chiralities in a ferrocene system via palladium/chiral norbornene (Pd/NBE*) cooperative catalysis. The first established axial chirality is dictated by Pd/NBE* cooperative catalysis, while the latter planar chirality is controlled by the preinstalled axial chirality through a unique axial-to-planar diastereoinduction process. This method allows for the synthesis of benzo-fused ferrocenes with both axial and planar chiralities in one step with high enantioselectivities and diastereoselectivities.
Article
Chemistry, Physical
Hongnan Jia, Qi Han, Wei Luo, Hengjiang Cong, Hexiang Deng
Summary: The study achieved precise positioning of different metals in multivariate metal-organic frameworks, forming an alternating sequence to improve the efficiency of oxygen evolution reaction.
Article
Materials Science, Multidisciplinary
Licong An, Haoqing Jiang, Danilo de Camargo Branco, Xingtao Liu, Jin Xu, Gary J. Cheng
Summary: This study introduces an advanced liquid metal nanopatterning technique based on pulsed laser lithography to create self-packaged, high-resolution liquid metal patterns. The method can generate high-resolution liquid metal nano-patterns by applying compression force, and the electrical functionality of the patterns is well maintained even when subjected to external damage.
