Xianghua Kong

Electromechanical switching and momentum-selective transport in geometry-defined blue phosphorus homojunctions

Zewen Wu, Min Zhou, Yanxia Xing, Xianghua Kong

Developing intrinsic homojunctions without chemical heterogeneity remains a key challenge for the development of future two-dimensional devices. Here, we report a geometry-defined metal–semiconductor–metal homojunction in bilayer blue phosphorus (BlueP) created by a localized bubble corrugation, without chemical doping or foreign-material interfaces. First-principles …

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A Cobalt‐Mediated Facet Engineering for High‐Voltage Na 4 Fe 3 (PO 4 ) 2 P 2 O 7 Cathodes

Chihao Yang, y Qingyong Ren, Bo Wang, Hao Luo et autres

ABSTRACT Na 4 Fe 3 (PO 4 ) 2 P 2 O 7 (NFPP), with its high specific capacity and excellent structural stability, is a promising cathode material for sodium‐ion batteries. This study reveals the structural regulation mechanism of cobalt‐doped Na 4 …

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Cotton Cellulose Separator Regulated by Intermolecular Hydrogen Bonding for Effective Modulation of Zn 2+ Transport and Deposition

Xianghua Kong, Chenguang Feng, Xinyu Zhao, Haijiao Xie et autres

Conventional glass fiber (GF) separators play a key role in aqueous zinc ion batteries (AZIBs). However, it is not only expensive but also lacks the ability to inhibit the growth of zinc dendrites, which ultimately leads to a decrease in battery capacity …

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Sodium sulfamate-modified luffa cellulose fiber separator for efficient modulation of Zn2+ transport

Xianghua Kong, Chenguang Feng, Bolin Zhang, Zirui Cao et autres

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Hydrogen Bonding Networks in Hybrid Binders Inhibit Vanadium Dissolution for Stable Aqueous Zinc-Ion Batteries

Xianghua Kong, Di Li, Hongyu Chen, Yuanxiang Gu

A hybrid binder is developed by mixing cellulose and polyvinylidene fluoride (PVDF). Hydrogen bonds formed between the hydroxyl groups of cellulose and the fluorine atoms of PVDF enhance the hydrophilicity of the cathode and suppress vanadium dissolution, thereby significantly improving the electrochemical …

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Multi‐Chambered Branches of Hollow Nanoreactors Drive Spatiotemporal Regulation of * CO Intermediate for Efficient CO 2 ‐to‐CH 4 Photoreduction

Xiaowu Gao, Ziwei Zhao, Zewen Wu, Zhenhuai Yang et autres

Abstract The high‐calorific value and gas infrastructure compatibility of methane (CH 4 ) position it as a key target in artificial CO 2 photoreduction. However, the challenge of manipulating the surface coverage of * CO intermediate on catalysts significantly impedes the efficiency …

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Ferroelectrically‐Controlled Multi‐State Switching in AgVP 2 S 6 /WSe 2 van der Waals Heterojunctions for Efficient Visible‐To‐Near‐Infrared Photodetection

Lu Qi, Linwei Zhou, Muhammad Ahsan Iqbal, Sichao Dai et autres

Abstract 2D van der Waals (2D vdW) ferroelectric heterojunctions hold promise for advancing optoelectronic technologies. However, several challenges remain, such as carrier recombination and tunability. Here, AgVP 2 S 6 is introduced, a p ‐type ferroelectric semiconductor with a small bandgap of …

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Identifying Representative Structural Model in Atomically Dispersed Catalysts

Guolei Cai, Haifeng Lv, Yifan Li, Guikai Zhang et autres

Atomically dispersed catalysts (ADCs) embedded within carbon substrates are gaining considerable attention for their high metal atom utilization and exceptional catalytic activity. The coordination structure of the active catalytic center is crucial to catalytic performance; however, accurately characterizing these structures remains challenging …

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Asymmetric Coordinated Single‐Atom Catalysts Offering Zero‐Order Sulfur Redox Kinetics for High Performance Li–S Batteries

Xianghua Kong, Yifan Li, Guolei Cai, Wenchao Liu et autres

Abstract Accelerating the sluggish sulfur redox kinetics through electrocatalysis has been regarded as one of the key factors to achieve Li–S batteries of cell‐level energy densities exceeding 600 Wh kg −1 . Though single‐atom catalysts (SACs), typically with symmetric M‐N 4 coordination …

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Asymmetric Coordinated Single‐Atom Catalysts Offering Zero‐Order Sulfur Redox Kinetics for High Performance Li–S Batteries

Xianghua Kong, Yifan Li, Guolei Cai, Wenchao Liu et autres

Abstract Accelerating the sluggish sulfur redox kinetics through electrocatalysis has been regarded as one of the key factors to achieve Li–S batteries of cell‐level energy densities exceeding 600 Wh kg −1 . Though single‐atom catalysts (SACs), typically with symmetric M‐N 4 coordination …

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Kinetically accessible 1D magnetic chains of transition-metal chalcogenides and halides on van der Waals surfaces

De-Ping Guo, Renhong Wang, Weihan Zhang, Jiaqi Dai et autres

One-dimensional (1D) chains offer unique opportunities for nanoelectronics and spintronics, yet their experimental realization remains challenging because 1D motifs are often thermodynamically disfavored relative to higher-dimensional phases. Here we present a high-throughput first-principles exploration of 1D single-atomic transition-metal chalcogenide and halide chains, …

Bipolarity Induced Gigantic Intrinsic Anomalous Hall Effect in Iterative‐Grown Kagome Semimetal Co 3 Sn 2 S 2 Crystals

Senhao Lv, Hui Guo, Wei Jiang, Jiangang Yang et autres

Abstract As a magnetic Weyl semimetal with broken time‐reversal symmetry, kagome‐lattice Co 3 Sn 2 S 2 hosts a plethora of exotic quantum phenomena due to the interplay between magnetism, electronic correlations, and non‐trivial band topology. However, achieving high crystal quality, which …

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