Jinlong Zhu

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Verified

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• Ph. D
• Professor (Associate) at Southern University of Science and Technology

We investigated the spectroscopy and ferroelectric properties of 30Pb(In1/2Nb1/2)O3–40Pb(Mg1/3Nb2/3)O3–30PbTiO3 (30PIN-40PMN-30PT) single crystal as a function of pressure up to about 5 GPa. The hysteresis loops indicate that the ferroelectric properties of 30PIN-40PMN-30PT remain relatively stable below 1.4 GPa. Beyond this threshold, polarization...

The stability of particle assemblies is strongly affected by particle shape, yet definitive laws describing key properties, such as the mean contact number and apparent friction coefficient, remain elusive. Using X-ray computed tomography and discrete element simulations, we study 70 assemblies of 3D frictional particles. Once properly rescaled, ou...

In ordered magnets, the elementary excitations are spin waves (magnons), which obey Bose–Einstein statistics. Similarly to Cooper pairs in superconductors, magnons can be paired into bound states under attractive interactions. The Zeeman coupling to a magnetic field is able to tune the particle density through a quantum critical point, beyond which...

A pressing need for enhancing lithium-ion battery (LIB) performance exists, particularly in ensuring reliable operation under extreme cold conditions. All-solid-state batteries (ASSBs) offer a promising solution to the challenges posed by conventional LIBs with liquid electrolytes in low-temperature environments. In this study, leveraging the benef...

Concurrent superconductivity and negative photoconductivity (NPC) are rarely observed. Here, the discovery in PbSe0.5Te0.5 of superconductivity and photoconductivity transitions between positive photoconductivity (PPC) and NPC during compression is reported to ≈40 GPa and subsequent decompression, which are also accompanied by reversible structure...

The rapid advancement of integrated circuits and artificial intelligence has accelerated the proliferation of smart devices, driving the demand for high‐performance lithium‐based secondary batteries (LSBs). Despite notable technological advancements, LSBs continue to face significant challenges, particularly regarding cycle life, power density, spe...

This study reports a new class of amorphous nitride‐halide solid electrolytes, Li3xMClyNx (referred to as LMCN, M=Ta or La, 1≤3x≤1.4, y=5 or 3), which can be rendered amorphous through nitrogen incorporation. The introduction of N³⁻ into LMCN alters the coordination between cations and anions, leading to the formation of amorphous structure and enh...

Attaining superconducting critical temperatures (Tc) beyond the limit around 14 K observed thus far in spinel compounds AB2X4 (A, B = transition metals, X = O/chalcogen) could elucidate interaction intricacies and inform materials design. This work spotlights CuIr2S4, which exhibits a distinct metal-insulator transition below 230 K, as an unconvent...

Solid polymer electrolytes (SPEs) are crucial in the development of lithium metal batteries. Recently, metal–organic frameworks (MOFs) with open metal sites (OMSs) have shown promise as solid fillers to improve the performance of SPEs. However, the number of OMS‐containing MOFs is quite limited, comprising less than 5% of the total MOFs. When consi...

We report the structure and properties of a new Ce-based compound Ce3TiAs5 synthesized under high-pressure and high-temperature conditions. It crystallizes in a hexagonal Hf5Sn3Cu-anti type structure with zig-zag like Ce chains along the c axis. This compound is metallic and undergoes a magnetic phase transition at TN = 13 K. A metamagnetic transit...

The formation and decomposition of methane hydrates, particularly in porous media such as subsea sediments, have attracted significant research interest due to their implications for energy production, storage, and safety in deep-sea environments. This study explores the process and characteristics of methane hydrates formation and decomposition us...

To address the urgent challenge of global climate change due to the greenhouse effect resulting from increasing carbon dioxide (CO2) emissions, viable technologies for geological CO2 storage must be developed. Of such technologies, CO2 hydrates holds significant promise for CO2 storage in seabed sediments, which typically contain clay minerals and...

Aqueous fluids are extensively present in the middle to lower crust, as revealed by seismic and magnetotelluric soundings. The α−β quartz phase transition significantly affects many physical properties and leads to substantial microcracks that can provide pathways for the migration of crustal fluids. A systematic investigation of macroscopic physic...

To understand the occurrence of natural gas hydrates in seabed sediments, it is crucial to examine the mechanisms of methane (CH4) hydrate formation in sodium montmorillonite (Na-Mt) systems in the presence of amino acid. Accordingly, this study employed kinetics experiments and molecular dynamics simulations to investigate CH4 hydrate nucleation a...

Organic matter is a pivotal component in methane hydrate (MH) deposition and plays a crucial role in the MH formation process due to its intricate chain structures. In this study, organic matters (OMs) with varying carbon chain lengths, including glycine, alanine, phenylalanine, 12-amino dodecanoic acid, dodecyl amine, and dodecanoic acid, were sel...

Lithium (Li) oxyhalides have emerged as promising solid electrolyte candidates for all-solid-state batteries (ASSBs) due to their superior ionic conductivity and excellent cathode capability. However, the mechanism of Li transport in oxyhalides has remained unclear due to the complex nature of these compounds, which often comprise multiple phases s...

Li‐rich antiperovskite (LiRAP) hydroxyhalides are emerging as attractive solid electrolyte (SEs) for all‐solid‐state Li metal batteries (ASSLMBs) due to their low melting point, low cost, and ease of scaling‐up. The incorporation of rotational polyanions can reduce the activation energy and thus improve the Li ion conductivity of SEs. Herein, we pr...

The performance of lithium‐sulfur batteries is compromised by the loss of sulfur as dissolved polysulfides in the electrolyte and consequently the polysulfide redox shutting effect. Accelerating the conversion kinetics of polysulfide intermediates into sulfur or lithium sulfide through electrocatalysis has emerged as a root‐cause solution. Co−N−C c...

Li‐rich antiperovskite (LiRAP) hydroxyhalides are emerging as attractive solid electrolyte (SEs) for all‐solid‐state Li metal batteries (ASSLMBs) due to their low melting point, low cost, and ease of scaling‐up. The incorporation of rotational polyanions can reduce the activation energy and thus improve the Li ion conductivity of SEs. Herein, we pr...

Quantum spin liquid states have garnered significant attention as potential precursors for high-temperature superconductors. Researchers are aiming to achieve high-temperature superconductivity through regulation. However, previous studies have indicated that candidate materials with honeycomb structures, such as Na2IrO3 and α−Li2IrO3, remain in a...

Gray arsenic is a two-dimensional semimetal material that has attracted much attention due to its rich and fascinating properties such as ultrahigh carrier mobility and giant magnetoresistance properties. In this work, the structural and electrical properties of gray arsenic under high pressure have been systematically explored. Two structural phas...

Recently exfoliated monolayer and multilayered transition metal dichalcogenides have gathered significant interest based on their tunable bandgap and extremely high carrier mobility. We have investigated the Raman and photoluminescence spectra of monolayer and multilayer WS2 as a function of pressure. The Raman-inactive mode B1u, which is activated...

Hydrogen-propane hydrate is a promising practical hydrogen storage medium. However, the optimal conditions for the hydrogen-propane hydrate remain unclear. In this study, the thermodynamic and kinetic characteristics of hydrogen-propane gas (molar ratio 0.67/0.33) hydrate formation were investigated using experiments and molecular dynamics simulati...

Here we report a ferromagnetic compound Ba9V3Te15 with quasi-one-dimensional (1D) spin chains. It was synthesized at high-temperature and high-pressure conditions and systematically investigated via structural, transport, magnetic and heat capacity measurements. Ba9V3Te15 mainly consists of trimerized face-sharing VTe6 octahedral chains running alo...

Solid-state electrolyte (SSE) is anticipated to exhibit proper mechanical strength and effectively inhibit the penetration of Li dendrites. However, in reality, the growth of Li dendrites is inevitable, which are driven by the intrinsic attributes of SSEs, such as grain boundaries, cracks, and pores. Hence, guiding the growth of Li dendrites in a c...

Synchrotron-based in situ pressure small- and wide-angle X-ray scattering and associated strain analysis reveal a pressure-driven anisotropic strain distribution across a Pt nanocube (NC) assembled supercrystal that has an obtuse rhombohedral superlattice. This strain anisotropy is largely controlled by the rational interplay between soft organic m...

Solid-state electrolytes with high ionic conductivities are crucial for the development of all-solid-state lithium batteries, and there is a strong correlation between the ionic conductivities and underlying lattice structures of solid-state electrolytes. Here, we report a lattice manipulation method of replacing [Li 2 OH] ⁺ clusters with potassium...

Low Coulombic efficiency (CE) and safety issues are huge problems that hinder the practical application of Li metal anodes. Constructing Li host structures decorated with functional species can restrain the growth of Li dendrites and alleviate the great volume change. Here, a 3D porous carbonaceous skeleton modified with rich lithiophilic groups (Z...

Recently, topological insulators (TIs) KHgX (X = As, Sb, Bi) with hourglass-shaped dispersion have attracted great interest. Different from the TIs protected by either time-reversal or mirror crystal symmorphic symmetry tested in previous experiments, these materials were proposed as the first material class whose band topology relies on nonsymmorp...

Lithium batteries have been essential technologies and become an integral part of our daily lives, powering a range of devices from phones to electric vehicles. To fully understand and optimize the performance of lithium batteries, it is necessary to investigate their internal states and processes through various characterization methods. Neutron i...

Solid-state electrolytes (SSEs) hold the key position in the progress of cutting-edge all-solid-state batteries (ASSBs). The ionic conductivity of solid-state electrolytes is linked to the presence of both amorphous and crystalline phases. This study employs the synthesis method of mechanochemical milling on binary xLi2S-(100-x)LiI system to invest...

CuInP2S6 with robust room-temperature ferroelectricity has recently attracted much attention due to the spatial instability of its Cu cations and the van der Waals (vdW) layered structure. Herein, we report a significant enhancement of its remanent polarization by more than 50% from 4.06 to 6.36 µC cm⁻² under a small pressure between 0.26 to 1.40 G...

This paper examines the micro-parameters of superconductors. It studies the modulations from weak van der Waals interaction to strong covalence bonding of superconductors. In particular, we studied layered black phosphorus (BP) as a function of pressure. These results reveal a rich scenario of phase transitions and related quantum phenomena, which...

Interactions of collective excitations often lead to rich emergent phenomena in many-particle quantum systems. In ordered magnets, the elementary excitations are spin waves (magnons), which obey Bose-Einstein statistics. Similar to the Cooper pairs in superconductors, magnons can be paired into bound states under attractive interactions. Even more...

The Cover Art mainly describes our investigation of NASICON-type materials (LiTi2(PO4)3 and Li3Ti2(PO4)3) through a combination of experimental and theoretical (XRD, NPD, and DFT) methods, and demonstrates that in Li3Ti2(PO4)3 Li-ion sites in the structure lead to a stronger Li-ion hopping synergistic effect and a significant overall transport mode...

Solid polymer electrolytes (SPEs) by in situ polymerization are attractive due to their good interfacial contact with electrodes. Previously reported in situ polymerized SPEs, however, suffer from the low polymerization degree that causes poor mechanical strength, Li dendrite penetration, and performance decay in Li-metal batteries. Although highly...

We report a systematic investigation of the finite-size effect on magnetostructural transition in CrN based on a series of nanoparticle samples with various sizes prepared by a high-pressure method, leading to the discovery of anomalous critical behaviors near transition, especially for spin correlation length. Such critical anomalies are presumabl...

Violet phosphorus, as a kind of two-dimensional material, has become an excellent candidate for optoelectronic devices as it makes up for the drawbacks of black phosphorus applications. This study explores the structural and electrical properties of violet phosphorus under high-pressure conditions. Two structure phase transitions are revealed by th...

Nitride perovskite LaWN3 has been predicted to be a promising ferroelectric material with unique properties for diverse applications. However, due to the challenging sample preparation at ambient pressure, the crystal structure of this nitride remains unsolved, which results in many ambiguities in its properties. Here, the authors report a comprehe...

Geometrical frustration and the enhancement of strong quantum fluctuations in two-dimensional triangular antiferromagnets can lead to various intriguing phenomena. Here, we studied the spin-1/2 triangular lattice antiferromagnet NdAuAl$_4$Ge$_2$. Thermodynamic and transport properties, such as magnetization and specific heat together with the resis...

The simple kagome-lattice band structure possesses Dirac cones, flat band, and saddle point with van Hove singularities in the electronic density of states, facilitating the emergence of various electronic orders. Here we report a titanium-based kagome metal CsTi 3 Bi 5 where titanium atoms form a kagome network, resembling its isostructural compou...

Geometrical frustration and the enhancement of strong quantum fluctuations in two-dimensional triangular antiferromagnets can lead to various intriguing phenomena. Here, we studied the spin-1/2 triangular lattice antiferromagnet NdAuAl4Ge2. Thermodynamic and transport properties, such as magnetization and specific heat together with the resistivity...

Diffusion-mediated assembly of octahedral PbS nanocrystals (NCs) in a confined antisolvent environment displays a primary burst nucleation and Ostwald ripening growth of rhombic bcc supercrystals, followed by a secondary seed-based nucleation and oriented attachment growth of triangle fcc supercrystals. As the diffusion proceeds from ethanol across...

The demand for green, clean, and low‐cost energy based on next generation all‐solid‐state batteries is increasing day by day. Compared with all‐solid‐state lithium‐ion batteries, all‐solid‐state sodium‐ion batteries (ASSSIBs) feature better environmental credentials, higher safety, and higher earth abundance. To develop such type of battery system,...

It has been recognized that a small amount of propane mixed with methane can change greatly in not only the thermodynamics but also the structural properties of gas hydrate. However, its mechanism is still not well understood yet. In this research, structure-II (sII) hydrate is synthesized using a methane-propane gas mixture with an initial mole ra...

Reversible topotactic phase transition between perovskite (PV) and oxygen-vacancy-ordered brownmillerite (BM) structures provides an effective platform for realizing the control of physical properties in complex transition metal oxides. However, such reversibility always requires extreme external conditions, that is, a high temperature and vacuum e...

CO2 capture is a viable solution for mitigating the global CO2 emission in the atmosphere. Hydrate-based CO2 capture is a promising technology. In this study, the CO2 hydrate formation thermodynamics and kinetics, along with the factors that influence CO2 capture in nanoporous silica gels (named S9, S26, and S77 with an average pore size of 9, 26 a...

The development of all-solid-state lithium batteries (ASSLBs) depends on exploiting solid-state electrolytes (SSEs) with high ionic conductivity and electrochemical stability. Fluorination is generally considered to be an effective strategy to improve the ionic conductivity and electrochemical stability of inorganic SSEs. Here, we report the partia...

Microwave stimulation is a new method for natural gas hydrate exploitation. In this study, methane hydrate was synthesized in quartz sand with a particle size of 106–150 μm, and the decomposition characteristics were investigated using continuous and intermittent microwave heating. During the initial stage of continuous microwave heating, methane h...

Composite polymer electrolytes (CPEs) show significant advantages in developing solid-state batteries due to their high flexibility and easy processability. In CPEs, solid fillers play a considerable effect on electrochemical performances. Recently, metal-organic frameworks (MOFs) are emerging as new solid fillers and show great promise to regulate...

Metal–organic framework (MOF) and gas hydrate synergy is a potential technology for CH4 storage and CO2 separation. This review introduces the structural characteristics of MOFs and gas hydrates and highlights their limitations in gas storage and separation. Herein, the crystal types, pore structures, and wettability of all the MOFs used for CH4 an...

Solid-state lithium-metal batteries, with their high theoretical energy density and safety, are highly promising as a next-generation battery contender. Among the alternatives proposed as solid-state electrolyte, lithium-rich anti-perovskite (LiRAP) materials have drawn the most interest because of high theoretical Li⁺ conductivity, low cost and ea...

Nucleation and growth mechanism of CH4/CO2 hydrates has attracted great attention for CH4/CO2 mixed gas separation and CO2 sequestration. In this study, the nucleation mechanism of CH4/CO2 mixtures forming hydrate with different gas concentrations in the kaolinite (Kln) particles with hydroxyl and siloxane surface contacts was investigated using mo...

The spin-induced ferroelectricity in quasi-1D spin chain system is little known, which could be fundamentally different from those in three-dimensional (3D) system. Here, we report the ferroelectricity driven by a tilted screw spin order and its exotic dynamic in the spin-chain compound Ba9Fe3Se15. It is found that the spin-induced polarization has...

Relaxor ferroelectric crystals of lead magnesium niobate–lead titanate (PMN-xPT) have attracted great attention due to their extraordinary dielectric, piezoelectric, and electromechanical properties. PMN-xPT shows different relaxor behavior and structural phase transitions in a wide temperature and chemical component range. Here, we studied spectro...

The recently discovered Ba2FeS3 consists of one-dimensional tetrahedral FeS4 chain and exhibits an anti-magnetic ground state, which provides a chance to investigate new iron-based superconductors. Here, we report the pressure dependence of transport properties on Ba2FeS3 with pressure up to 45 GPa. It is found that as the pressure (P) increases, t...

Magnetic frustration in insulators often induces cooperative atomic displacements to form a polar structure with long-range ordered electric dipoles, commonly known as improper multiferroics. In metals, such a multiferroic phenomenon is not expected to occur because free carriers tend to screen internal electrostatic forces, eliminating long-range...