APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Zhiguo Zheng,Chongyang Jiang,Yi Nie,Yuliang Li,Yanyi Li,Mengfei Shi,Jiaqi Feng,Min Wang,Kaihang Zhang,Zhenlei Zhang,Xiangping Zhang
Co doping tailors Ni redox chemistry and creates ultrathin nanosheet arrays. • PA-NiCoS@NF delivers 80.1% formate yield and 80.9% FE at 1.45 V vs. RHE. • Xylose oxidation requires 251 mV less potential than OER at 50 mA cm −2 . • In situ Raman identifies dynamically formed NiCoOOH as the reactive phase. Abundant xylose from agroforestry residues can be electrocatalytically oxidized to formate, offering a promising green biomass valorization strategy for carbon neutrality. Herein, a novel post-activated (PA) Ni-Co bimetallic sulfide-derived electrocatalyst supported on a nickel foam substrate for the xylose oxidation reaction (XOR), denoted as PA-NiCoS@NF, was fabricated via a facile one-step electrodeposition method. Co doping induces the formation of an ultrathin nanosheet array structure. Furthermore, it enables precise modulation of the electronic structure of the Ni centers, and the strong electronic interaction between Co and Ni bimetallic sites facilitates the oxidation of Ni 2+ to Ni 3+ . The PA-NiCoS@NF catalyst exhibits outstanding electrocatalytic performance for XOR, delivering a xylose conversion of 99.9%, a formate yield as high as 80.1% with a formate selectivity of 81.0%, a corresponding Faradaic efficiency of 80.9% at a low potential of 1.45 V vs. RHE. Additionally, the XOR delivers a current density of 50 mA·cm⁻² at only 1.39 V vs. RHE. Density functional theory calculations reveal that Co doping optimizes the adsorption behaviors of xylose and adsorbed hydroxyl species on the active sites. Furthermore, the PA-NiCoS@NF catalyst exhibits excellent cycling stability for XOR and increased anodic current responses in a preliminary LSV screening of five biomass-derived substrates. This work provides a novel and feasible strategy for the electronic structure modulation and nanostructure engineering of high-efficiency catalysts in the field of electroconversion of aldose biomass platform molecules. Download: Download high-res image (210KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Yujie Wang,Kai Cheng,Fengxiang Yu,Xueli Sun,Yuqian Wang,Jingran Xiao
FeOCl acts as a bifunctional co-catalyst on the Ti-Fe 2 O 3 photoanode for PEC water splitting. • FeOCl cocatalyst forms a type-II heterojunction with Ti-Fe 2 O 3 and boosts OER kinetics. • FeOCl can activate the lattice oxygen-mediated mechanism for accelerated OER. • AlOOH interlayer works synergistically with FeOCl to improve charge separation. • FeOCl/Al/Ti-Fe 2 O 3 photoanode achieves a photocurrent density 3.32 times that of bare Ti-Fe 2 O 3 . The photoelectrochemical water splitting performance of hematite photoanodes is limited by both poor charge separation and sluggish surface reaction kinetics. Herein, FeOCl is in situ deposited on Ti-doped Fe 2 O 3 (Ti-Fe 2 O 3 ) as an efficient co-catalyst with a bifunctional role. FeOCl forms a type-II heterojunction with Ti-Fe 2 O 3 that enhances bulk charge separation and accelerates charge transfer, potentially due to the activation of the lattice oxygen-mediated mechanism (LOM) to accelerate oxygen evolution reaction kinetics. Furthermore, an AlOOH interlayer introduced between FeOCl and Ti-Fe 2 O 3 reinforces the built-in electric field and works synergistically with FeOCl to further improve charge separation. The FeOCl/Al/Ti-Fe 2 O 3 photoanode delivers an optimized photocurrent density of 2.85 mA cm −2 at 1.23 V vs. RHE and 3.88 mA cm −2 at 1.50 V vs. RHE, outperforming both single-modifier photoanodes. This work demonstrates a dual-function design strategy that couples heterojunction formation with LOM activation, guiding the development of multi-component photoanodes. Download: Download high-res image (331KB) Download: Download full-size image
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Xu Han,Guoping Liu,Li Wu,Xiubo Min,Zhongsheng Wen
Due to the large ionic radius of Na⁺, sodium storage is often accompanied by sluggish ion transport and limited interfacial reaction kinetics, posing significant challenges for the development of high-performance sodium-ion battery electrode materials. To address these issues, a Co-modified WS 2 /rGO composite was constructed via a hydrothermal method combined with subsequent thermal treatment. The Co-WS 2 /rGO electrode delivers a reversible capacity of 283.5 mAh g -1 after 300 cycles at a current density of 2 A g -1 , along with favorable rate capability. Kinetic analyses reveal a higher surface-controlled contribution and lower charge-transfer resistance for Co-WS 2 /rGO compared with WS 2 /rGO. Operando electrochemical analyses further reveal reduced polarization and improved reaction reversibility during Na⁺ storage. These results demonstrate that Co modification combined with rGO incorporation is an effective strategy for improving the interfacial electrochemical kinetics and sodium-storage performance of WS 2 -based anodes. Download: Download high-res image (196KB) Download: Download full-size image
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Advanced Energy Materials
·
2026
·
IF 25.5
Hengfei Zhang,Ying Zhang,Yichen Zhang,Hui Ding,Dan Tan,Zhuoyang Lu,Xiangyang Liu,Zhiming Lin,Maogang He,Zhong Lin Wang
Simultaneously securing clean water and reliable electricity remains a formidable global challenge, particularly in infrastructure-deficient off-grid regions. However, existing co-supply strategies are hindered by decoupled operating mechanisms and limited energy density. Here, we present a Wirtz-pump-driven triboelectric nanogenerator (WP-TENG) that enables both water conveyance and electricity generation within a self-sustaining platform. Powered by ambient water flow, the Wirtz pump leverages the air-lock effect to lift fluid as segmented liquid columns, thereby inducing periodic liquid–solid triboelectrification along the pipe wall. Crucially, the electrical output is boosted due to the dynamic evolution of the interfacial electric double layers within the inner–outer electrode configuration. Through systematic parameter optimization and modular integration, the WP-TENG achieves a volumetric flow rate of 200 mL·min −1 and a hydraulic head of 0.82 m, while delivering peak outputs of 920 V and 940 µA, exceeding those of reported liquid–solid TENGs under comparable conditions. Moreover, the platform powers an electrochemical disinfection module, enabling sustained 5-log microbial inactivation within 10 min during prolonged operation. This work establishes a self-sustaining platform for decentralized water–electricity co-supply and offers a scalable route toward water–energy resilience in resource-constrained environments.
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Advanced Powder Materials
·
2026
·
IF 26.8
Shuxian Bi,Yishu Lv,Ying Liu,Yuan Shu,Weiyuan Wu,Panpan Wang,Xicai Tian,Pengfei Zhang,Zhenghong Luo
A scalable solid–liquid–solid route constructs intimate LaCoO 3 /CeO 2 interfaces. • 5 wt.% LaCoO 3 /CeO 2 -SLS boosts LaCoO 3 -normalized CO oxidation ∼99-fold. • Kilogram-scale batches retain uniform and durable CO oxidation performance. : Perovskite catalysts exhibit excellent thermal stability but suffer from insufficient activity, creating an activity–stability trade-off that hinders their practical implementation. Constructing interfaces with reducible oxides (e.g., LaCoO 3 /CeO 2 ) can overcome this limitation via electronic metal oxide-support interaction (eMOSI), yet controllable synthesis remains challenging. Here, we report a “solid–liquid–solid” nanoparticle-transfer method for the scalable fabrication of supported LaCoO 3 /CeO 2 heterostructures, in which LaCoO 3 crystallization is completed before its deposition onto CeO 2 . Preformed LaCoO 3 nanoparticles are transferred from a removable NaCl matrix onto CeO 2 , thereby bypassing support-mediated co-nucleation and the differential migration of La and Co species. Remarkably, the 5 wt.% LaCoO 3 /CeO 2 -SLS catalyst achieves a LaCoO 3 -mass-normalized CO consumption rate of 1.16×10 −4 mol·g LaCoO3 −1 ·s −1 , nearly two orders of magnitude higher than that of pristine LaCoO 3 at 160 °C. It also exhibits exceptional durability (near-500 h on stream) and can be scaled to kilogram scale without performance loss. XRD, Raman, EELS, Ce L 3 -edge XANES, and DFT calculations collectively reveal interfacial electron transfer from LaCoO 3 toward CeO 2 with partial ceria reduction, thereby promoting CO oxidation. This work provides a general powder-processing strategy for constructing supported multicomponent oxide interfaces and demonstrates the potential of interfacial electronic engineering for scalable catalytic powder manufacturing. A simple and scalable solid–liquid–solid nanoparticle-transfer route forms LaCoO 3 nanoparticles on a removable NaCl template. Upon NaCl dissolution, the preformed nanoparticles are released and transferred onto CeO 2 , generating intimate oxide–oxide interfaces with enhanced charge transfer and oxygen activation for efficient and durable low-temperature CO oxidation. Download: Download high-res image (284KB) Download: Download full-size image
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Cell Reports Medicine
·
2026
·
IF 14
Qiliner Feng,Chen Wang,Zexi Li,Dingran Sheng,Si Shi,Jie Liu,Baizhu Chen
Bacteria-based living therapeutics exhibit outstanding potential for tumor immunotherapy when combined with functional materials or rewired with rationally designed gene circuits. To stimulate T cells precisely and effectively, herein, we report the surface-engineered bacteria as the living therapeutic for tumor immunotherapy. Escherichia coli cells are genetically programmed to display surface-anchored B7H2 to provide immunological co-stimulation signal of T cells and Histag to coordinate with ZnS quantum dots. In tumors, B7H2 induces the co-stimulatory ICOS-B7H2 signal at the molecular level and triggers the stimulation of cytotoxic T cells, the polarization of helper T cells, the release of cytokines, and long term antitumor immunological memory. Meanwhile, the coordinated ZnS quantum dots image tumors and synergize with B7H2 to enhance immune effects by activating the cGAS/STING pathway. With functional domains displaying on the bacterial surface, we establish an efficient living therapeutic approach for tumor immunotherapy.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Shanying He,Jiahao Kang,Juncong Zou,Xiang Li,Shaohua Wu,Chunping Yang
Nanoparticle incorporation reduces the coordination number of Co-N x while enhancing curvature. • The kinetic rate constant reached 315 min −1 M −1 was achieved at an ultralow PMS concentration. • The PMS complex exhibits excellent oxidation efficiency while maintaining high selectivity. Metal nanoparticles could regulate the electronic structure of single-atom sites in catalysts, thus enhance efficiency in the Fenton-like reactions. However, the effects and mechanisms of nanoparticle existence on both coordination number and curvature of metal sites remains largely overlooked. Herein introducing nanoparticles into catalysts serves as a strategy to modulate catalyst size effect for directional construction of metal sites possessing lower coordination numbers and higher curvature. Theoretical and experimental results reveal that decrease of the coordination number and increase of the curvature of the metal sites boost electron density, unlocking the energetic potential for adsorption in the peroxymonosulfate (PMS) system and highlighting their key function in the regulation of the electronic structure of the metal centers. This effect facilitates highly efficient electron transfer between cobalt atoms and PMS, which promotes the formation of PMS complexes (PMS*). As a result, the catalyst (denoted as Co NPs/Co-N 3 -C) achieved an exceptional k -value of 315 min −1 M −1 in the Fenton-like removal of Bisphenol A (BPA), outperforming the majority of transition-metal catalysts reported in recent years. This study provides a synthetic strategy for catalysts integrating metal single atoms with nanoparticles and elucidates how coordination environment and curvature jointly regulate electronic structure to achieve efficient Fenton-like reactions.
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Journal of the American Chemical Society
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2026
·
IF 16.6
Min Qiuhong,Lu Ruihu,Jin Jian,Su Shangchun,Si Gangzheng,Lou Yuanhao,Wang Chundong,Li Wenjia,Liu Xiangyu,Wang Feifei,Wang Ziyun,Pang Yuanjie
The
conversion of CO to acetate represents a selective and efficient
pathway among CO 2 /CO-to-C 2+ electroreduction
routes, with recent advancements being partly attributed to pressurized
electrolyzer designs. Pressurization establishes bulk CO enrichment
that enhances mass transport, yet methodologies for designing catalyst
surfaces to efficiently accommodate and electroreduce dense *CO intermediates
remain underdeveloped. We systematically investigate *CO adsorption
coverage and affinity across copper surfaces with varying structural
features, correlating these properties with CO-to-acetate performance.
Notably, operando Raman spectroscopy conducted in a custom flow reactor
replicating pressurized environments reveals pressure-dependent *CO
adsorption and conversion dynamics on distinct Cu surfaces. We discover
that Cu twin boundaries optimally support both pressurization-enhanced
CO adsorption and subsequent conversion steps, achieving Faradaic
efficiencies of 91% for total C 2+ products and 82% for
acetate at 10 atm CO pressure, surpassing all reported monometallic
Cu catalysts. We contributed a practical tool for the operando characterization
of pressurized gas-fed electrocatalytic processes.
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ACS Applied Energy Materials
·
2026
·
IF 5.5
Wu Pengxuan,Ding Yusong,Li Bingshuang,He Yunxia,Liu Qian,Huang Xiaoxi
This study reports a mesoporous carbon confinement strategy for enhancing the mass activity and structural durability of Au-based catalysts toward electrochemical CO 2 reduction reaction (CO 2 RR) to CO. Glutathione-protected Au clusters were introduced into polyaniline-derived mesoporous carbon (PDMC), followed by thermal ligand removal, producing ultrasmall Au nanoparticles uniformly embedded within a conductive N-doped carbon framework. The mesoporous carbon matrix effectively restricts Au growth and suppresses nanoparticle aggregation, thereby preserving abundant low-coordinated Au surface sites while maintaining accessible channels for charge and mass transport. The optimized Au@PDMC-30 catalyst delivers a CO Faradaic efficiency of 90.0 ± 1.3% at –0.9 V vs reversible hydrogen electrode in an H-type cell and maintains stable CO production for over 24 h without obvious Au aggregation. More importantly, under flow-cell conditions, Au@PDMC-30 achieves a high CO mass activity of 1192.4 mA mg –1 , approximately twice that of commercial Au/C, demonstrating greatly improved precious-metal utilization. In situ Fourier transform infrared spectroscopy and density functional theory calculations reveal that the confined low-coordinated Au sites possess an optimized electronic structure that facilitates *COOH formation, thereby accelerating the CO 2 to CO pathway. This work highlights confinement engineering of ultrasmall noble-metal nanoparticles as an effective route to improve catalytic selectivity, durability, and mass-normalized activity for CO 2 RR.
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Materials
·
2026
·Vol. 19
·期 10
·2006
·
IF 3.7
Wenchao Zhan,Yuefeng Wang,Xumin Wang,Hao Yang,Qianqian Feng,Xianfen Wang
Thanks to their low cost and environmental sustainability, sodium-ion batteries have emerged as a highly attractive alternative to lithium-ion systems in the field of large-scale energy storage; however, issues such as insufficient energy density and poor cycle stability have hindered their widespread adoption. We have rationally designed a Mg/Li co-doped P2-type NLMMO (Na0.8Mg0.22Li0.08Mn0.7O2) cathode material that enables reversible anion redox reactions through synergistic interactions, enhancing the stability of the layered framework. The material exhibits an exceptional initial discharge capacity of 158 mAh g−1at 2.0–4.4 V and retains 68% of its capacity after 400 cycles at 0.1 A g−1, surpassing the performance of both lithium-doped (Na0.8Li0.3Mn0.76O2, NLMO) and magnesium-doped (Na0.8Mg0.3Mn0.7O2, NMMO) materials. In situ XRD shows that NLMMO has structural stability, and the Mg doping modification strongly inhibits the phase transition and stabilizes the interlayer structure. Ex situ XPS analysis indicates that the lattice oxygen in the cathode material underwent changes. This study provides a new path for designing cathodes with synergistic anionic and cationic redox reactions.
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Journal of Materials Research and Technology-JMR&T
·
2026
·
IF 7.3
Lei Wang,Han Zhang,Pengfei Xu,Zhihao Liu,Zekun Liu,Bo Wang,Fei Ding,Langping Wang,Yanji Yang,Yong Chen,Yupeng Xu,Dianlong Wang,Bo Wang
Internal stress control is critical for the electroforming of high-precision components such as X-ray focusing mirrors, which typically require stress levels below 0.1 MPa to maintain shape accuracy. Meanwhile, the complex nonlinear interactions among multiple deposition parameters make stress optimization challenging using traditional methods. We propose a machine learning-assisted framework to systematically investigate and optimize the low-stress (<0.1 MPa) electroforming of nickel and nickel-cobalt alloys from sulfamate baths. Among various machine learning algorithms, random forest is identified as the optimal predictive model. Based on this, a processing map correlating current density and cobalt concentration with low-stress conditions is established. SHAP analysis reveals that current density is the dominant factor, followed by cobalt concentration. Combined EBSD, XRD, and DFT calculations elucidate the underlying physical mechanisms. Current density induces grain refinement, while cobalt incorporation promotes solid solution formation, both of which lead to lattice expansion in the nickel structure and consequent tensile stress generation. Finally, finite element simulations guide the optimization of engineering solutions, leading to the successful fabrication of X-ray focusing mirrors with exceptional thickness uniformity (coefficient of variation <2%)
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Nature Communications
·
2026
·
IF 18.1
Lei Jiwei,Wu Zihe,Ye Daoping,Feng Yifan,Tian Yu,Niu Jin,Liu Bowen,Wang Yi,Cheng Chong,Li Shuang,Zhao Changsheng
The catalytic conversion of CO 2 into value-added chemicals via the reverse water-gas shift (RWGS) reaction represents a significant pathway for mitigating climate change and enabling sustainable carbon utilization. However, Pt-based catalysts, despite their superior H 2 activation ability, often suffer from inadequate CO selectivity and durability under high-temperature conditions, primarily due to excessive CO adsorption at low-coordinated Pt edge sites. Herein, we present a sulfur (S)-mediated targeted passivation strategy to engineer Pt-CeO 2 catalysts with atomically tailored active sites, effectively addressing the critical activity-stability-selectivity trade-off. The incorporation of S into CeO 2 support induced optimized electronic modulation, as evidenced by in situ/ex situ characterizations and density functional theory (DFT) calculations, which weakened *CO adsorption strength and suppressed the methanation pathway. The optimized Pt-S-CeO 2 catalyst exhibits remarkable performance at 600 °C: CO selectivity >95%, CO production rate of 8.8×10 −5 mol g cat −1 s −1 , and <10% activity loss over 250 h. On the other hand, this work establishes a framework for targeted dopant-mediated site engineering in heterogeneous catalysis, offering a generalizable route to reconcile conflicting performance in CO 2 hydrogenation systems and beyond.
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