Hui Wu

State Key Laboratory of New Ceramics and Fine Processing

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Kai Huang

Beijing University of Posts and Telecommunications

Wei Pan

Tsinghua University

Hehe Wei

East China University of Science and Technology

Yuanzheng Long

Tsinghua University

Ming Lei

Beijing University of Posts and Telecommunications

Gang Ou

Jinan University

Jialiang Lang

Tsinghua University

Naveed Hussain

Indira Gandhi Government Medical College & Hospital

Lei Li

Tsinghua University

Jianan Song

Dalian Maritime University

Cooperative Institutions

Tsinghua University

315

Chinese Academy of Sciences

198

State Key Laboratory of New Ceramics and Fine Processing

179

Huazhong University of Science and Technology

University of Chinese Academy of Sciences

Zhejiang University

Sichuan University

Peking University

University of Science and Technology of China

Wuhan University of Technology

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Ultralight, scalable, and high-temperature–resilient ceramic nanofiber sponges

Science Advances (2017)

Haolun Wang Xuan Zhang Ning Wang Yan Li Xue Feng

Scalable synthesis of ultralight, multifunctional, and high-temperature resilient ceramic nanofiber sponges by blow-spinning.

Sponge

Electrospinning

10.1126/sciadv.1603170

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Citations (252)

Active Control of Interface Dynamics in NASICON-Based Rechargeable Solid-State Sodium Batteries

Nano Letters (2022)

Zheng Sun Lei Li Chen Sun Qing Ni Yongjie Zhao

Severe challenges are restraining the practical application of solid-state batteries, such as the dendrite growth and unsatisfactory compatibility between solid electrolyte and electrode. Here, we propose an interface dynamic control (IDC) strategy to ensure the stable operation of NASICON-based solid-state sodium batteries. First, we introduce intergranular phase (CuO) to effectively promote the densification of Na3Zr2Si2PO12 with an optimized ionic conductivity of 1.74 × 10-3 S cm-1 at 25 °C. Moreover, the kinetically formed Na-Cu-O interlayer reveals outstanding conductive capability. The dramatically reduced interfacial area-specific resistance (70 ohm cm-2) boosts the resistance to Na dendrite growth, ensuring the excellent cycling stability of symmetric Na cells at a current density of 0.4 mA cm-2 and room temperature. All-solid-state sodium metal batteries with Na3V1.5Cr0.5(PO4)3 cathode and modified Na3Zr2Si2PO12 ceramic electrolyte reveal a high retention of 87.4% at 100 mA g-1 over 300 cycles. This work opens up a new route for the rational interface design of NASICON-structure solid electrolyte toward the application in the high energy-density and high safety electrochemical energy storage devices.

Fast ion conductor

Electrochemical window

Electromotive force

10.1021/acs.nanolett.2c02509

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Citations (54)

Self-healing chemistry enables the stable operation of silicon microparticle anodes for high-energy lithium-ion batteries

Nature Chemistry (2013)

Chao Wang Hui Wu Zheng Chen Matthew T. McDowell Yi Cui

Microparticle

10.1038/nchem.1802

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Citations (1,140)

Magnetic Fe3O4-Reduced Graphene Oxide Nanocomposites-Based Electrochemical Biosensing

Nano-Micro Letters (2014)

Lili Yu Hui Wu Beina Wu Lanying Li Hongmei Cao

An electrochemical biosensing platform was developed based on glucose oxidase (GOx)/Fe3O4- reduced graphene oxide (Fe3O4-RGO) nanosheets loaded on the magnetic glassy carbon electrode (MGCE). With the advantages of the magnetism, conductivity and biocompatibility of the Fe3O4-RGO nanosheets, the nanocomposites could be facilely adhered to the electrode surface by magnetically controllable assembling and beneficial to achieve the direct redox reactions and electrocatalytic behaviors of GOx immobilized into the nanocomposites. The biosensor exhibited good electrocatalytic activity, high sensitivity and stability. The current response is linear over glucose concentration ranging from 0.05 to 1.5 mM with a low detection limit of 0.15 μM. Meanwhile, validation of the applicability of the biosensor was carried out by determining glucose in serum samples. The proposed protocol is simple, inexpensive and convenient, which shows great potential in biosensing application.

Glucose oxidase

Biocompatibility

Amperometry

10.1007/bf03353790

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Citations (59)

Ice Melting to Release Reactants in Solution Syntheses

Angewandte Chemie International Edition (2018)

Hehe Wei Kai Huang Le Zhang Binghui Ge Dong Wang

Aqueous solution syntheses are mostly based on mixing two solutions with different reactants. It is shown that freezing one solution and melting it in another solution provides a new interesting strategy to mix chemicals and to significantly change the reaction kinetics and thermodynamics. For example, a precursor solution containing a certain concentration of AgNO3 was frozen and dropped into a reductive NaBH4 solution at about 0 °C. The ultra-slow release of reactants was successfully achieved. An ice-melting process can be used to synthesize atomically dispersed metals, including cobalt, nickel, copper, rhodium, ruthenium, palladium, silver, osmium, iridium, platinum, and gold, which can be easily extended to other solution syntheses (such as precipitation, hydrolysis, and displacement reactions) and provide a generalized method to redesign the interphase reaction kinetics and ion diffusion in wet chemistry.

Osmium

10.1002/anie.201711128

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Citations (45)

Electrospinning of Fe, Co, and Ni Nanofibers: Synthesis, Assembly, and Magnetic Properties

Chemistry of Materials (2007)

Hui Wu Rui Zhang Xinxin Liu Dandan Lin Wei Pan

A general synthetic method has been developed to fabricate and assemble ferromagnetic transition metal nanofibers. By employing the novel electrospinning technique followed by subsequent heat treatment, we have successfully prepared uniform nanofibers of Fe, Co, and Ni with diameters of ∼25 nm and lengths longer than 100 μm. Using a specially designed fiber collector, we can conveniently assemble magnetic nanofibers into aligned arrays. The electrospun magnetic metal nanofibers have unique magnetic properties, with much enhanced coercivities relative to bulk materials. The outstanding features of this approach to get one-dimensional magnetic nanostructure are its simplicity, effectiveness, and ease of assembly. Therefore, electrospun magnetic nanofibers can potentially be used in fabrication of high-density magnetic recording, magnetic sensors, flexible magnets, and spintronic devices.

Electrospinning

10.1021/cm070280i

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Citations (294)

Directed Electron Modulation Stabilizes Iridium Oxide Clusters for High‐Current‐Density Oxygen Evolution

Advanced Functional Materials (2024)

He Xian Jiaqi Tan Bohan Deng Wei Zhao Zhuting Zhang

Abstract The rapid advancement of the green hydrogen industry has driven a surge in demand for devices that operate over a broad range of current density. Despite this, the development of stable iridium‐based catalysts for high‐current‐density applications in oxygen evolution reactions remains a significant challenge. In this study, directed electron modulation (DEM) of iridium oxide clusters on cobalt hydroxide nanosheets is achieved using a cyclic Joule heating strategy in pure water. The strategy achieves a rapid change of environmental energy during electronic modulation through Joule heating, which ensures strong electronic coupling between IrO 2 and Co(OH) 2 without significant changes in initial catalyst nanostructure and cluster size. Directed electron modulation optimizes the reactant adsorption ability of the active center (IrO 2 cluster) and corresponding reaction kinetics are improved, resulting in the catalyst (DEM‐IrO 2 @Co(OH) 2 ‐NF) showing excellent performance. The DEM‐IrO 2 @Co(OH) 2 ‐NF exhibits excellent catalytic activity in alkaline electrolytes with only 296 mV overpotential up to 1 A cm −2 and no significant degradation in 1000 h stability test at 1 A cm −2 . Additionally, the anion exchange membrane electrolyzer using DEM‐IrO 2 @Co(OH) 2 ‐NF||Pt/C requires only 1.68 V at 1 A cm −2 and remains stable for 200 h. This work will provide new directions for optimization of active centers.

Overpotential

Oxygen evolution

Cobalt oxide

10.1002/adfm.202416385

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Citations (0)

Synergistic solar photovoltaic and electrodialysis desalination system with waste heat management: A multiscale modeling

Desalination (2025)

Baiqing Ye Guoqiang Xu Hui Wu Qing-hai Pang Qinlong Ren

Solar Desalination

10.1016/j.desal.2025.118598

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Improved oxygen reduction activity of porous carbon materials by self-doping nitrogen derived from PVP with urea as a promoter

Electrochimica Acta (2015)

Jian Zhang Qidong Li Ibrahim Saana Amiinu Hui Wu Chenyu Zhang

Polyvinylpyrrolidone

Carbon fibers

10.1016/j.electacta.2015.01.172

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Citations (11)

Suppressed phase transition and giant ionic conductivity in La2Mo2O9 nanowires

Nature Communications (2015)

Wei Liu Wei Pan Jian Luo A. Godfrey Gang Ou

Abstract Improving the ionic conductivity of solid electrolytes at low temperatures represents a major challenge and an opportunity for enabling a variety of solid-state ionic devices for energy conversion and storage, as well as for environmental protection. Here we report a giant ionic conductivity of 0.20 Scm −1 , achieved at 500 °C, in the La 2 Mo 2 O 9 nanowires with a bamboo-wire morphology, corresponding to a 1000-fold enhancement in conductivity over conventional bulk material. Stabilization of the high-temperature phase is observed to account for about a 10-fold increase in the conductivity. We further demonstrate that fast surface conduction in ∼3 nm thick, partially ordered, surface ‘amorphous’ films, under strain on the curved surfaces of the nanowires (as a non-autonomous surface phase or complexion), contributes to an enhancement of the conductivity by another two orders of magnitude. Exemplified here by the study of the La 2 Mo 2 O 9 nanowires, new possibilities for improvement of conductivity and for miniaturization of solid-state ionic devices by the careful use of one-dimensional nanomaterials can be envisioned.

Nanomaterials

Surface conductivity

Fast ion conductor

10.1038/ncomms9354

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Citations (43)