Xinchuan Du

National Engineering Research Center of Electromagnetic Radiation Control Materials

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Jie Xiong

Xiangtan University

Xianfu Wang

University of Electronic Science and Technology of China

Jianwen Huang

National Engineering Research Center of Electromagnetic Radiation Control Materials

Limin Wang

National Center for Chronic and Noncommunicable Disease Control and Prevention

Yin Hu

University of Electronic Science and Technology of China

Feifei Zhang

Taiyuan University of Technology

Tianyu Lei

National Engineering Research Center of Electromagnetic Radiation Control Materials

Yichao Yan

University of Electronic Science and Technology of China

Gang Huang

Nanjing Forestry University

Chuanhui Gong

Nantong University

Cooperative Institutions

University of Electronic Science and Technology of China

National Engineering Research Center of Electromagnetic Radiation Control Materials

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Chengdu University

Jiangsu University

Soochow University

University of Science and Technology of China

Changchun Institute of Applied Chemistry

Zhejiang University

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Metal Organic Frameworks Route to in Situ Insertion of Multiwalled Carbon Nanotubes in Co₃O₄ Polyhedra as Anode Materials for Lithium-Ion Batteries

ACS Nano (2015)

Gang Huang Feifei Zhang Xinchuan Du Yuling Qin Dongming Yin

Hybridizing nanostructured metal oxides with multiwalled carbon nanotubes (MWCNTs) is highly desirable for the improvement of electrochemical performance of lithium-ion batteries. Here, a facile and scalable strategy to fabricate hierarchical porous MWCNTs/Co3O4 nanocomposites has been reported, with the help of a morphology-maintained annealing treatment of carbon nanotubes inserted metal organic frameworks (MOFs). The designed MWCNTs/Co3O4 integrates the high theoretical capacity of Co3O4 and excellent conductivity as well as strong mechanical/chemical stability of MWCNTs. When tested as anode materials for lithium-ion batteries, the nanocomposite displays a high reversible capacity of 813 mAh g(-1) at a current density of 100 mA g(-1) after 100 charge-discharge cycles. Even at 1000 mA g(-1), a stable capacity as high as 514 mAh g(-1) could be maintained. The improved reversible capacity, excellent cycling stability, and good rate capability of MWCNTs/Co3O4 can be attributed to the hierarchical porous structure and the synergistic effect between Co3O4 and MWCNTs. Furthermore, owing to this versatile strategy, binary metal oxides MWCNTs/ZnCo2O4 could also be synthesized as promising anode materials for advanced lithium-ion batteries.

Polyhedron

Carbon fibers

Lithium metal

10.1021/nn506252u

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Citations (474)

Freestanding MnO2@carbon papers air electrodes for rechargeable Li-O2 batteries

Journal of Power Sources (2014)

Leilei Zhang Feifei Zhang Gang Huang Jianwei Wang Xinchuan Du

Current collector

Carbon fibers

Birnessite

10.1016/j.jpowsour.2014.03.094

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Citations (53)

Lithiophilic montmorillonite serves as lithium ion reservoir to facilitate uniform lithium deposition

Nature Communications (2019)

Wei Chen Yin Hu Weiqiang Lv Tianyu Lei Xianfu Wang

Abstract The growing demand for lithium batteries with higher energy densities requires new electrode chemistries. Lithium metal is a promising candidate as the anode material due to its high theoretical specific capacity, negative electrochemical potential and favorable density. However, during cycling, low and uneven lithium ion concentration on the surface of anode usually results in uncontrolled dendrite growth, especially at high current densities. Here we tackle this issue by using lithiophilic montmorillonite as an additive in the ether-based electrolyte to regulate the lithium ion concentration on the anode surface and thus facilitate the uniform lithium deposition. The lithiophilic montmorillonite demonstrates a pumping feature that improves the self-concentrating kinetics of the lithium ion and thus accelerates the lithium ion transfer at the deposition/electrolyte interface. The signal intensity of TFSI − shows negligible changes via in situ Raman tracking of the ion flux at the electrochemical interface, indicating homogeneous ion distribution, which can lead to a stable and uniform lithium deposition on the anode surface. Our study indicates that the interfacial engineering induced by the lithiophilic montmorillonite could be a promising strategy to optimize the lithium deposition for next-generation lithium metal batteries.

Deposition

10.1038/s41467-019-12952-6

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Citations (178)

Electrolyte engineering towards efficient oxygen evolution electrodes with enhanced catalytic activity

Fuel (2025)

Zhilin Zhang Chenyang Cai Yutao Hua Zhenghao Zhang Yitian Wu

Oxygen evolution

Clark electrode

10.1016/j.fuel.2025.134438

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Modulierung der elektronischen Strukturen anorganischer Nanomaterialien für eine effiziente elektrokatalytische Wasserspaltung

Angewandte Chemie (2018)

Xinchuan Du Jianwen Huang Junjun Zhang Yichao Yan Chunyang Wu

Abstract Elektrokatalytische Wasserspaltung ist eine der vielversprechendsten nachhaltigen Technologien zur Energieumwandlung, ist aber eingeschränkt durch die trägen elektrochemischen Reaktionen. Anorganische Nanomaterialien sind häufig als effiziente Katalysatoren zur Förderung der elektrochemischen Kinetik verwendet worden. Verschiedene Verfahren sind zur Aktivitätsoptimierung dieser Nanokatalysatoren entwickelt worden. Die elektronischen Strukturen der Katalysatoren spielen bei der Steuerung der Aktivität eine zentrale Rolle und sind daher ein wesentlicher Deskriptor. Allerdings sind die zugrundeliegenden Funktionsweisen der verfeinerten elektronischen Strukturen nach wie vor schwer fassbar. Um die Zusammenhänge zwischen Struktur, elektronischem Verhalten und Aktivität herzuleiten, wird hier eine umfassende Zusammenstellung der bisher entwickelten Strategien zur Regulierung der elektronischen Strukturen präsentiert, mit Betonung von Oberflächenmodifizierung, Spannung, Phasenübergang und Heterostruktur. Aktuelle Probleme beim grundsätzlichen Verständnis des Verhaltens von Elektronen in den Nanokatalysatoren werden detailliert diskutiert.

10.1002/ange.201810104

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Modulating Electronic Structures of Inorganic Nanomaterials for Efficient Electrocatalytic Water Splitting

Angewandte Chemie International Edition (2018)

Xinchuan Du Jianwen Huang Junjun Zhang Yichao Yan Chunyang Wu

Abstract Electrocatalytic water splitting is one of the most promising sustainable energy conversion technologies, but is limited by the sluggish electrochemical reactions. Inorganic nanomaterials have been widely used as efficient catalysts for promoting the electrochemical kinetics. Several approaches to optimize the activities of these nanocatalysts have been developed. The electronic structures of the catalysts play a pivotal role in governing the activity and thus have been identified as an essential descriptor. However, the underlying working mechanisms related to the refined electronic structures remain elusive. To establish the structure–electronic‐behavior–activity relationship, a comprehensive overview of the developed strategies to regulate the electronic structures is presented, emphasizing the surface modification, strain, phase transition, and heterostructure. Current challenges to the fundamental understanding of electron behaviors in the nanocatalysts are fully discussed.

Nanomaterials

10.1002/anie.201810104

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Citations (422)

Alternating current and electrolyte engineering-promoted surface reconstruction of NiFeOxHy catalysts for amper-level oxygen evolution reaction

Journal of Colloid and Interface Science (2024)

Chenyang Cai Zhilin Zhang Yutao Hua Zhenghao Zhang Yitian Wu

Oxygen evolution

10.1016/j.jcis.2024.11.192

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Robust Piezoelectricity with Spontaneous Polarization in Monolayer Tellurene and Multilayer Tellurium Film at Room Temperature for Reliable Memory

Advanced Materials (2022)

Gaofeng Rao Hui Fang Ting Zhou Chunlin Zhao Nianze Shang

Robust neuromorphic computing in the Big Data era calls for long-term stable crossbar-array memory cells; however, the elemental segregation in the switch unit and memory unit that inevitably occurs upon cycling breaks the compositional and structural stability, making the whole memory cell a failure. Searching for a novel material without segregation that can be used for both switch and memory units is the major concern to fabricate robust and reliable nonvolatile cross-array memory cells. Tellurium (Te) is found recently to be the only peculiar material without segregation for switching, but the memory function has not been demonstrated yet. Herein, apparent piezoelectricity is experimentally confirmed with spontaneous polarization behaviors in elementary 2D Te, even in monolayer tellurene (0.4 nm), due to the highly oriented polarization of the molecular structure and the non-centrosymmetric lattice structure. A large memory window of 7000, a low working voltage of 2 V, and high on switching current up to 36.6 µA µm-1 are achieved in the as-fabricated Te-based memory device, revealing the great promise of Te for both switching and memory units in one cell without segregation. The piezoelectric Te with spontaneous polarization provides a platform to build robust, reliable, and high-density logic-in-memory chips in neuromorphic computing.

Non-Volatile Memory

Neuromorphic engineering

Memory cell

Tellurium

10.1002/adma.202204697

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2D Steep‐Slope Tunnel Field‐Effect Transistors Tuned by van der Waals Ferroelectrics

Advanced Electronic Materials (2024)

Xinrui Chen Tiantian Jiang Hanbin Wang Yang Wang Miao Zhang

Abstract sPower consumption has emerged as a central concern in the realm of complementary metal‐oxide‐semiconductor (CMOS) technology. Silicon‐based semiconductor devices have now approached the fundamental thermionic limit of the subthreshold swing (SS), which is 60 mV dec −1 , as defined by the Boltzmann tyranny. Tunnel field‐effect transistors (TFETs) are considered promising low‐power devices due to the band‐to‐band tunneling mechanism, which effectively avoids the thermionic limit. However, TFETs require the establishment of a staggered band alignment and currently lack effective techniques for adjusting the band offset. Here, by harnessing the robust ferroelectric field inherent to 2D CuInP 2 S 6 (CIPS), a 2D WSe 2 /MoS 2 heterojunction as well as a WSe 2 homojunction TFET controlled by ferroelectric gate are presented. The newly developed TFET achieves an ultra‐low SS of 14.2 mV dec −1 at room temperature, an on/off current ratio exceeding 10 8 , and a minimal hysteresis window below 10 mV. Additionally, the device demonstrates gate tunable negative differential resistance (NDR) characteristics with a very large peak‐to‐valley current ratio (PVCR) of 10.56 at room temperature. These findings underscore the significant promise of 2D ferroelectric tuning heterojunction and homojunction for future low‐power electronic applications.

Tunnel field-effect transistor

10.1002/aelm.202400463

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Current Bias Modulated Low Noise Equivalent Power of YBa₂Cu₃O_7-δ Nanowire Infrared Detector in 8–12 μm

ACS Applied Electronic Materials (2024)

Mingxin Shao Xinchuan Du Yuqing Liu X. Cai Zongpei Li

Noise-equivalent power

Biasing

Infrared detector

10.1021/acsaelm.4c01586

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