Advanced Materials

ABSTRACT High‐temperature proton exchange membrane fuel cells (HT‐PEMFCs) offer compelling advantages for energy conversion, including simplified water and thermal management and high tolerance to fuel impurities. In these systems, phosphoric acid (PA) serves as the primary proton conductor, enabling anhydrous proton transport. However, cathode performance and durability remain constrained by slu…

ABSTRACT Organic room‐temperature phosphorescent (RTP) hydrogels are attractive as flexible luminescent materials for optoelectronic and biomedical applications, but their water‐rich and mechanically compliant nature makes it difficult to create microenvironments that simultaneously suppress nonradiative decay, resist external quenching, and maintain structural robustness. Here, we report an amph…

ABSTRACT Cell therapy combined with biomimetic polymer engineering offers a promising strategy for cardiovascular regeneration. Compartmentalizing single cells in hydrogels creates three‐dimensional (3D) micro‐niches that enhance bio‐responsiveness and the therapeutic efficacy of cell therapy. A non‐microfluidic strategy for single‐cell encapsulation using a stimuli‐responsive amphiphilic copolym…

ABSTRACT Electrocatalytic reactions occur at a dynamic, ion‐regulated electrochemical interface, rather than at a static electrode boundary. In electrocatalytic processes such as hydrogen evolution/oxidation and CO 2 reduction, which operate at potentials below the electrode's potential of zero charge, electrolyte cations are not mere spectators but active participants that shape reaction behavio…

ABSTRACT Oxygen has been regarded as a detrimental impurity in titanium alloys, as it triggers embrittlement and compromises ductility. Recent research advancements, however, have revolutionized this perception, revealing oxygen as a powerful microstructural architect capable of mediating phase transformations and deformation mechanisms to achieve strength–ductility combinations. This review syst…

ABSTRACT Efficient generation and control of spin‐polarized currents in semiconductors remain central challenges for spin‐based electronics, particularly due to impedance mismatch and the reliance on magnetic fields or ferromagnetic contacts. Here, we introduce a materials platform for spectrally programmable spin transport based on a van der Waals (vdW) heterostructure combining the antiferromag…

ABSTRACT Given the cost‐effectiveness, renewability, and environmental friendliness features, biomass‐derived hard carbon has attracted significant attention in sodium‐ion batteries (SIBs). However, the macroproperties of the resultant hard carbon highly depend on the resources and components of the biomass precursors. And the structure–property relationship remains complicated, which brings huge…

ABSTRACT Reverse dialysis based on hydrogel membranes holds promise for the development of soft electrochemical batteries. However, the energy conversion efficiency is often constrained by excessive swelling, which dilates nanochannels and degrades permselectivity. Here, we present a bicontinuous‐network hydrogel (BCNH) engineered by precisely modulating the hydrophilic and hydrophobic phases to …

ABSTRACT Ternary logic offers a path to higher information density and lower power consumption beyond the limits of binary CMOS, yet its progress has been limited by the absence of high‐performance ternary transistors and scalable circuit technologies. Here we report a mixed‐dimensional ternary CMOS (T‐CMOS) platform that monolithically integrates aligned carbon nanotubes (CNTs) and monolayer MoS…

ABSTRACT Aqueous Zn‐ion batteries (AZIBs) are attractive for large‐scale energy storage owing to their high theoretical capacity, intrinsic safety, and low cost. However, interfacial instability of Zn metal remains a major obstacle, leading to dendritic growth, parasitic reactions, and rapid capacity decay. Here, we introduce a coherent solid–solution interface (SSI) strategy with near‐zero latti…

ABSTRACT Linear actuators are widely employed in robots and wearable devices due to their capability of directly generating linear motion. Although soft actuators and flexible linear actuators have been developed to enable effective operation in various configurations, they are still constrained by a limited actuation range and a discrete bending, which restricts their achievable workspace and cu…

ABSTRACT Localized high‐concentration electrolytes (LHCEs) exhibit excellent interfacial compatibility with lithium metal anodes and high‐nickel cathodes, whereas the introduction of polymer networks during gelation may alter their intrinsic solvation structures. Here, we report a solvation‐preserving gel electrolyte formed via in situ polymerization of a fluorinated polymer network within a 1,2‐…

ABSTRACT Self‐assembled monolayers (SAMs) represent an effective strategy for optimizing buried interfacial quality in tin‐based perovskite solar cells (TPSCs). Nevertheless, conventional SAMs often suffer from severe molecular agglomeration, deteriorating interface quality, and tend to adopt a “lying‐down” configuration on hole transport layers, leading to a reduced vertical dipole component and…

ABSTRACT Achieving high power conversion efficiency (PCE) and operational stability remains a critical challenge of organic solar cells (OSCs). While the 2PACz self‐assembled monolayer (SAM) offers suppressed parasitic absorption and facilitated charge collection over the routinely‐used PEDOT:PSS hole‐transport layer (HTL), their operational stability is often limited by the vulnerable chemical s…

ABSTRACT Lithium sulfide (Li 2 S) is a promising high‐capacity cathode material. Importantly, it can provide lithium source, enabling lithium batteries with an anode‐less/free configuration. However, Li 2 S suffers from poor conductivity, high polarization, low material utilization, as well as the shuttle effect, severely restricting the long cycling performance of batteries. Herein, lithium pyri…

ABSTRACT The development of high‐energy‐density Li─Cl 2 batteries is hindered by insufficient Cl 2 storage in cathodes. Although porous host materials have been preliminarily explored, the effect of pore size on Cl 2 confinement and electrochemical behavior still remains unclear. Herein, two novel covalent organic frameworks (COFs) with distinct pore sizes, namely TH‐COF (mesoporous, 2.7 nm) and …

ABSTRACT Selective scattering of electrons near the Fermi level is the kinetic origin of the thermoelectric effect. Pronounced band nonparabolicity near the band edge is expected to promote the decoupling of a high Seebeck coefficient from high electrical conductivity; however, accessing this band‐edge transport regime at low temperatures remains challenging, as defect‐dominated scattering often …

ABSTRACT Cost‐effective Ru holds tremendous promise to tackle the sluggish hydrogen oxidation reaction (HOR) kinetics. Rational spatial distribution design of heterostructure components is crucial for electrochemical reactions involving multiple intermediates, particularly in fuel cells. In this study, we demonstrate a noncontact heterostructure catalyst featuring spatially separated but function…

MAX phases feature exceptional compositional and structural tunability, serving as a versatile materials platform for electrochemical energy storage and conversion, both as direct active materials and as chemical precursors for an array of functional derivatives. However, a unified framework connecting compositional and structural evolution across the MAX-phase platform materials with electrochem…

ABSTRACT Contact‐electro‐catalysis (CEC) converts mechanical excitation into interfacial redox chemistry, yet polar mineral water interfaces remain insufficiently engineered, limiting the efficient translation of spontaneous polarization into contact driven charge transfer. Here, we use surface hydroxylation to regulate the polar interface of natural tourmaline for enhanced CEC. Experiments and f…