SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Bin Wen,Fan Chen,Yi Ran,Dongyun Que,Zhihao Zhang,Youwei Zeng,Yuyuan Yao
Molybdenum disulfide (MoS₂) is a promising inorganic co-catalyst for Fenton processes due to its structural durability and avoidance of secondary organic pollution. However, the conventional 2H-phase MoS₂ suffers from intrinsically low conductivity, severely limiting Fe 3+ reduction in the Fenton reaction. Herein, L-cysteine served as a multifunctional precursor during the preparation of MoS₂, promoting a slow-release sulfur supply, carbon‑nitrogen co-doping, and the prevention of restacking. The carbon and nitrogen co-doped molybdenum disulfide (CN-MoS 2 ) architecture was fabricated via a single-step hydrothermal reaction mediated by sodium molybdate, thiourea, and L-cysteine. Remarkably, benefiting from the introduction of L-cysteine, the resulting CN-MoS 2 exhibited a high 1 T-phase content (68%), abundant sulfur vacancies, and a substantially reduced particle size. CN-MoS 2 accomplished near-complete elimination of carbamazepine (CBZ) within merely 3 min, yielding a prominent apparent rate constant of 0.7111 min −1 , which is a 19-fold kinetic acceleration over thiourea-derived MoS 2 . CN-MoS₂ also exhibited high TOC removal, broad-spectrum degradation, and robust CBZ removal under various water conditions. Additionally, electrochemical analyses further verified that CN-MoS₂ reduced charge-transfer resistance and enriched electron density, thereby facilitating rapid electron shuttling to Fe 3+ . Concurrently, quenching experiments and electron paramagnetic resonance (EPR) diagnostics unambiguously validated SO 4 •- , 1 O 2 and O 2 •- as the driving reactive forces. Moreover, a continuous-flow device incorporating a CN-MoS 2 -based membrane exhibited outstanding performance in wastewater purification. This work offers a new strategy for designing high-activity co-catalysts for advanced oxidation processes.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Lijie Zhu,Zhixin Li,Guoju Huang,Zhibing Chen,Wanli Liang,Fangyan Xie,Jian Chen,Nan Wang,Yanshuo Jin,Hui Meng
New setup monitors catalytic activity in-situ under tensile stress on metal foils. • Tensile stress shifts Ni d-band center up, lowering water dissociation barrier, boosting HER. • Heterostructure enables simple tensile strain tuning in Ni to enhance catalysis. Nickel is a widely used, non-precious metal electrocatalyst in the hydrogen evolution reaction (HER) and the hydrogen oxidation reaction (HOR). Herein, we developed a unique in-situ setup to investigate and monitor the impact of strain on the electrocatalytic properties of nickel metal by examining the HER activity of a macroscopically strained nickel sheet. The application of strain effectively optimizes the electronic structure of Ni, facilitating the accelerated dissociation of water and, consequently, enhancing the catalytic reaction. Furthermore, we synthesized Ni/Ni 0.2 Mo 0.8 N catalysts with heterostructures and induced microscopic stress on the crystal plane of Ni through these heterojunctions. The resulting Ni/Ni 0.2 Mo 0.8 N exhibited remarkable HER and HOR activity in alkaline solutions. A series of characterizations confirmed the presence of strain, and the activity of Ni was found to increase with the degree of strain. These findings introduce a novel approach for optimizing Ni-based materials in hydrogen catalysis and beyond.
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Advanced Energy Materials
·
2026
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IF 25.5
Xinyu Li,Yuqin Zhong,Hongkun Liu,Chengfeng Ma,Chunxu Xiang,Yize Li,Sifan Zhou,Na Zhao,Weibo Yan,Shaoying Wang,Hao Xin
The performance of wide bandgap Cu 2 ZnSnS 4 (CZTS) thin film solar cells is limited by serious recombination due to high concentration of defects and “cliff-like” conduction band offset (CBO) at the heterojunction. The state-of-the-art strategies tackling these issues are post heat treatment and alternative buffer layer. Here, we address these issues by adding InCl 3 to the chemical bath deposition solution (CBD-In-addition) for CdS buffer layer. At early CBD stage, In 3+ sufficiently substitute Zn 2+ near CZTS absorber surface and along the grain boundaries (GBs), enabled by smaller size than Cd 2+ and no complexation with NH 3 , resulting in highly conductive GBs with beneficial upward band bending. Further, the incorporation of In 3+ into CdS ((Cd,In)S) improved buffer layer n-type conductivity, alleviated heterojunction lattice mismatch and enlarged buffer layer bandgap, resulting in a coherent CZTS/(Cd,In)S interface, a “spike-like” CBO, and a more transparent buffer layer. These effects lead to 12.14% efficiency CZTS solar cell, improved by 31% compared to reference device (9.29%). This is the highest efficiency sulfide CZTS solar cell with chemical bath deposited buffer layer without post heat-treatment. The simple and synergetic defects mitigation strategy is expected to advance other wide bandgap chalcogenide thin film solar cells.
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Nano-Micro Letters
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2026
·Vol. 18
·期 1
·428
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IF 38.5
Feng Yuhao,Zhao Jindi,Chen Keke,Li Yang,Liu Jiao,Yu Huitao,Qin Mulin,Jia Kaihang,Han Haiwei,Shen Zhenghui,Ma Mingliang,Chen Xiao
Designing multifunctional materials integrating efficient photoresponsive thermoelectric cogeneration with microwave absorption remains challenging for clean solar energy utilization and electromagnetic interference mitigation. Herein, this study proposes an innovative design strategy combining interfacial bridging engineering and physical encapsulation to construct advanced multifunctional composite phase change materials (PCMs). A nanoparticle-bridged 3D interpenetrating phonon network is constructed via in-situ growth of CuS nanoparticles on layered MXene, creating abundant interfacial sites for polyethylene glycol (PEG) adsorption and efficient electron transport channels for electromagnetic loss. The resulting PEG-MXene@CuS composite PCMs achieve an exceptional photothermal conversion efficiency of 94.5% (100 mW cm −2 ), enabled by broadband absorption of MXene nanosheets and plasmonic effect of CuS nanoparticles. In photoresponsive thermoelectric cogeneration system, PEG-MXene@CuS serves as a heat source to drive thermoelectric module through the Seebeck effect, yielding a stable power output of 21.7 W m −2 (100 mW cm −2 ), with PEG effectively buffering thermal fluctuations. Moreover, MXene@CuS heterointerface and 3D conductive network endow PEG-MXene@CuS with superior microwave absorption, a minimum reflection loss of − 55.5 dB and an effective bandwidth of 5.27 GHz. This design concept provides important insights into designing next‑generation multifunctional PCMs with promising applications in intelligent thermal management, thermoelectric cogeneration, and electromagnetic protection.
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高影响因子
Nano-Micro Letters
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2026
·Vol. 18
·期 1
·430
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IF 38.5
Guo Ping,Wang Kai,An Xuyang,Ren Xuanyu,He Xinxin,Hu Yinhua,Zhou Lijie,Cai Guohua,Wang Lifeng,Liu Tiezhu,Ge Wenyu,Zhang Jia
A novel Yb-doped Bi 2 S 3 H 2 S sensor was fabricated for periodontitis exhalation diagnosis, which enables room temperature detection with high response (3.31/100 ppb) and superior selectivity.
Mechanism analysis combined with density functional theory calculations confirms that Yb doping-induced lattice distortion in Bi 2 S 3 enhances O 2- formation and H 2 S adsorption.
The sensor quantifies H 2 S produced by Porphyromonas gingivalis to confirm the association among pathogens, H 2 S and periodontitis, and is integrated into a portable analyzer for rapid, real‑time diagnosis and severity assessment of periodontitis clinically.
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Advanced Energy Materials
·
2026
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IF 25.5
Jiaqi Li,Hainan Wu,Tinghui An,Yuhao Wang,Dong Xiang,Nan Wang,Kedi Cai
Tin dioxide (SnO 2 ) has been demonstrated to convert CO 2 to formate in an electrocatalytic CO 2 reduction reaction (eCO 2 RR). However, suboptimal CO 2 activation and insufficient electrical conductivity pose formidable challenges to achieving desirable eCO 2 RR activity. Herein, a heterostructured CuS@SnO 2 catalyst was designed to realize efficient formate production in eCO 2 RR, which delivers a Faraday efficiency (FE) of 94.9% and partial current density of 243.5 mA cm −2 at −1.1 V versus RHE in alkaline conditions, coupled with excellent electrochemical stability. Systematic investigations reveal that CuS acts as an electron reservoir, and the directional electron transfer channels induce interfacial electron deficiency in SnO 2 , stabilizing Sn active sites during long-term eCO 2 RR operation. Furthermore, it confers dual effects for promoting formate conversion at the molecular level, which integrates optimized interface electronic structure and enhanced p–p orbital coupling between the key * OCHO intermediate and SnO 2 interface, rendering the enhanced * OCHO adsorption, decreased CO 2 hydrogenation energy barrier, and improved intrinsic formate activity. Beyond catalytic performance, CuS@SnO 2 was further utilized in a Li-CO 2 battery to enable integrated CO 2 conversion and energy storage functionality. This study provides a strategy to effectively regulate the formate selectivity of eCO 2 RR by heterointerface engineering, and meanwhile bridges rational catalyst design with practical CO 2 conversion technologies.
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JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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2026
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IF 3.1
Zhou Siliao,Zhou Wangdong,Zhou Jiahui,Liu Jing,Wei Yan
Developing sensing interfaces that simultaneously integrate catalytic activity, efficient charge transfer, and structural stability remains a major challenge for high-performance non-enzymatic glucose sensing. Herein, a CuS/Ti₃C₂/rGO ternary composite was fabricated through a combination of liquid-phase precipitation and self-assembly. Structural, surface, and electrochemical studies revealed that the enhanced sensing performance originated from the synergistic integration of catalytic CuS, conductive Ti₃C₂, and rGO-assisted structural protection. Under optimized conditions, the sensor exhibited a fast response time of 3.7 s, a wide linear range of 0.01–10.35 mM, and a low detection limit of 3.33 µM (S/ N = 3). In addition, satisfactory selectivity, stability, repeatability, and reproducibility were achieved. Recoveries of 98.1–105.0% were obtained in commercial oral liquids and fruit juice samples, demonstrating good analytical reliability in complex matrices. These findings indicate that the proposed catalysis-conduction-protection strategy provides an effective design principle for constructing high-performance non-enzymatic glucose sensing interfaces.
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Advanced Science
·
2026
·
IF 14.1
Yixiong Ji,Wentong Yang,Di Yan,Wei Luo,Jialu Li,Shi Tang,Jintao Fu,James Bullock,Mei Gao,Xin Li,Zhancheng Li,Jun Yang,Zhenghong Xiong,Yang Peng,Pengjun Zhao,Xingzhan Wei,Haofei Shi,Paul Mulvaney,Fangyang Liu
Flexible kesterite Cu 2 ZnSn (S,Se) (CZTSSe) solar cells on metal foils are attractive for lightweight and conformable photovoltaic applications, yet their efficiencies remain significantly lower than those of rigid devices due to severe foil‐induced rear‐interface losses during high‐temperature chalcogenization. These effects include uncontrolled Mo(S,Se) formation, interfacial instability, and the emergence of blocking back‐contact barriers that hinder efficient carrier extraction. Here, we introduce a single‐crystal graphene interlayer to engineer the Mo foil/CZTSSe interface. The atomically thin graphene layer decouples absorber growth from the mechanically and chemically non‐ideal foil surface, suppressing detrimental interfacial reactions and stabilizing the rear interface. As a result, carrier extraction is enhanced, and the back‐contact barrier is reduced toward quasi‐ohmic behavior. Flexible CZTSSe solar cells with graphene‐engineered interfaces achieve a champion efficiency of 11.6% with simultaneous improvements in V OC , J SC , and fill factor. These results highlight rear‐interface stabilization as a key strategy for improving flexible kesterite photovoltaics on metal substrates. An atomically thin graphene interlayer stabilizes the rear interface of flexible CZTSSe solar cells by regulating interfacial stress, suppressing detrimental interfacial reactions, and reducing the back‐contact barrier. This strategy simultaneously improves photovoltaic performance and mechanical durability.
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Journal of Energy Chemistry
·
2026
·
IF 15.6
Hewei Zhang,Zifan Zhu,Wei Wu,Jiajian Lin,Jiabei Song,Yutong Niu,Jinyu Ye,Abdullah N. Alodhayb,Yixi Zhuang,Zhou Chen,Wei Cheng
High-entropy nanomaterials have attracted tremendous research attention owing to their unique physical and chemical properties. Conventional methods for the synthesis of high-entropy nanomaterials often necessitate high temperatures and struggle with achieving well-defined morphologies. Here, we report room-temperature synthesis of high-entropy metal sulfide nanobelts through sequential cation exchange reactions between the pre-synthesized cobalt sulfide nanobelts and various metal ions in aqueous solution. The cation exchange reaction follows the hard and soft acid-base theory, which guides us to design and produce a variety of binary to high-entropy octonary metal sulfide nanobelts with uniform distribution of elements. The high-entropy quinary (CoCuSnFeIn)S x nanobelts demonstrate significantly enhanced electrocatalytic performance for the nitrate reduction reaction in comparison to low- and medium-entropy metal sulfide nanobelts, due to the increased configurational entropy and synergistic benefits of the incorporated metal elements. Our work provides a facile yet powerful synthesis platform for designing and synthesizing a diverse array of multi-metal/high-entropy sulfide nanomaterials with controlled compositions for electrocatalytic applications. A room-temperature sequential cation exchange strategy is developed to synthesize high-entropy metal sulfide nanobelts. These nanobelts exhibit exceptional electrocatalytic activity and selectivity for the nitrate reduction reaction to ammonia. Download: Download high-res image (234KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Chen Li,Xinyu Guo,Jiawei Song,Peijie Ma,Jie Tang,Kun Zheng
Owing to their exceptional performance and well-defined structure-activity relationships, single-atom photocatalysts have garnered increasing research interest, particularly in the context of photocatalytic hydrogen peroxide (H 2 O 2 ) production. However, the reaction mechanisms of the enhanced performance, such as the hemilabile mechanism in heterogeneous catalysis, remain only partially understood. In this work, we successfully loaded Bi single atoms onto S-doped graphene nitride carbon(Bi@g-C 3 N 4-x S x ). Synchrotron radiation analysis demonstrated that the reversible breaking and formation of Bi S bonds during the reaction promote reactant adsorption and product desorption, respectively, thereby boosting the H 2 O 2 production rate to 450.6 μmol·g −1 ·h −1 . Notably, both high-throughput computational analysis and the Sabatier principle indicate that oxygen (O 2 ) adsorption and H 2 O 2 desorption compete with each other in specific coordination environments. By introducing the hemilabile mechanism, significant dynamic reorganization of the electronic structure at the active site was achieved, enabling the catalyst to circumvent the limitations predicted by conventional volcano plots, which critically depends on the complexity of the coordination environment. The experimental confirmation of the hemilabile mechanism in heterogeneous catalysis offers a new perspective for the rational design of advanced catalysts and lays the groundwork for future innovations in sustainable chemistry and industrial applications. In the single-atom catalyst, hemilabile Bi S bonds dynamically switch between enhancing O 2 adsorption and promoting H 2 O 2 desorption, thus achieving highly efficient photocatalytic hydrogen peroxide production. Download: Download high-res image (81KB) Download: Download full-size image
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Zening Pan,Yudie Fu,Jiayu Wu,Aihua Xu,Xiuying Liu,Shuaiqi Zhao,Xiaoxia Li
Vacancy electronic quality, not quantity, governs catalytic performance. • Co-doping and quenching construct asymmetric Co–Ov–Mo motifs, transforming inert deep traps into active shallow donors. • CMO-Q activates PMS through a dual non-radical pathway. The electronic structure characteristics of oxygen vacancies (O v ) - rather than their quantity - are the fundamental factors determining peroxymonosulfate (PMS) activation. This study proposes a strategy of cobalt doping and controllable quenching to precisely construct two types of O v configurations with distinct electronic properties in MoO 3 : the symmetrical Mo–O v –Mo coordination structure in MoO 3 -Q and the asymmetrical Co–O v –Mo coordination structure in CMO-Q. Comprehensive multimodal characterizations confirm that although MoO 3 -Q has the highest O v concentration (39.78%) and the strongest EPR signal, the significantly broadened tail feature in its valence band XPS spectrum clearly indicates that the vacancies exist in the form of deep-level trap states, making it difficult for the captured charges to participate in subsequent interfacial reactions, thus presenting electronic inertness. In contrast, cobalt doping plays a directional anchoring role in the lattice, guiding the vacancies to preferentially form in the Co-adjacent coordination environment. The constructed asymmetrical Co–O v –Mo structure induces an internal polarization electric field due to the difference in electronegativity between Co 2+ and Mo 6+ , forming a shallow donor state with electron-donating function, thereby endowing the vacancies with intrinsic electronic activity. The electrochemical tests quantitatively reveal the essential differences in interfacial charge transfer kinetics between the two: CMO-Q exhibits the largest open-circuit potential shift (0.59 V ) and the smallest peak potential difference (ΔE = 0.13 V ), while MoO 3 -Q shows the smallest shift (0.47 V ) and the largest ΔE (0.26 V ). Further normalization by the electrochemically active surface area (ECSA) highlights the intrinsic activity difference: the k obs /C dl of CMO-Q reaches 6.18 min −1 ·cm 2 ·mF −1 , which is ten times higher than that of MoO 3 -Q (0.62 min −1 ·cm 2 ·mF −1 ). This work establishes vacancy quality over quantity as the design principle for high-performance catalysts.
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CARBON
·
2026
·
IF 12.7
Xiaoyan Liu,Wei Ding,Guoxu Wang,Jizheng Zhu,Suzhen Yin,Chengbiao Wei
Lithium-sulfur (Li-S) batteries are promising next-generation energy-storage systems because of their high theoretical energy density. However, their practical application is severely hindered by sluggish sulfur redox kinetics and the shuttle effect of soluble lithium polysulfides (LiPSs). Herein, a MoS 2 @NPCNFs interlayer is designed to immobilize LiPSs and accelerate bidirectional sulfur conversion. The porous and conductive carbon nanofiber framework provides rapid electron/ion transport pathways and facilitates electrolyte penetration, while the MoS 2 component offers abundant catalytic sites for polysulfide adsorption and conversion. As revealed by density functional theory (DFT) calculations, the nitrogen-regulated electronic environment modulates the Δd-p value associated with MoS 2 . This optimized d-p orbital interaction strengthens the coupling between MoS 2 and lithium polysulfides, thereby promoting their chemical adsorption and catalytic conversion. X-ray photoelectron spectroscopy shows obvious binding-energy shifts after Li 2 S 6 adsorption, indicating strong interfacial electronic interactions. Density functional theory calculations further demonstrate that this electronic-structure regulation enhances the LiPSs chemisorption, optimizes the Gibbs free-energy evolution of sulfur redox reactions, and lowers the energy barriers for Li 2 S decomposition and Li + diffusion. Consequently, the MoS 2 @NPCNFs interlayer enables efficient bidirectional catalysis of polysulfide reduction, effectively suppressing the shuttle effect and improving reaction kinetics. The assembled Li-S battery delivers high initial discharge capacities of 1262.9 mAh·g −1 at 0.2C and 916.0 mAh·g −1 at 1C, and maintains excellent cycling stability over 1000 cycles at 1C with a low capacity decay rate of 0.043% per cycle. This work provides an electronic-structure-regulation strategy for designing advanced interlayers toward high-performance Li-S batteries. Download: Download high-res image (276KB) Download: Download full-size image
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