ACS Catalysis
·
2026
·Vol. 16
·期 17
·16958-16971
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IF 13.6
Xi Yuhan,Hu Xinge,Zhang Jinpan,Xu Yuqing,Feng Qianyue,Cao Liu,Ma Yueru,Li Hai,Yan Tianran,Li Chaoran,Zhang Liang,Feng Kai,He Le,An Xingda
Solar-driven chlorine and hydrogen co-evolution from seawater represents an energy-conservating and clean alternative to the conventional chlor-alkali industry. However, sustained and selective chlorine production remains extremely challenging due to competition from the thermodynamically less demanding water oxidation side reaction. In this work, we demonstrate a Ni/Ni 2 SiO 4 plasmonic matrix catalyst that enables a distinct energetic charge carrier filter effect for wavelength-controlled selective chlorine and hydrogen co-production. Based on the distinct energy band structure, the plasmonic-mediated energetic charge filter drives the extraction of higher-energy “hot” holes and lower-energy “cold” electrons, respectively, through lower- and higher-wavelength photons. This phenomenon, combined with hierarchical plasmon coupling and promoted carrier dynamics, collectively led to the cooperative facilitation of both the oxidative and reducing half reactions. In situ spectroscopic investigations point at preferentially promoted chloride adsorption and activation via a two-step, nonradical chlorine evolution pathway, leading to favorable Cl 2 and H 2 yield rates with near-unity Cl 2 selectivity in photocatalytic measurements with seawater. The plasmon-mediated energetic charge carrier filter mechanism opens intriguing pathways for preferential reaction engineering with effective product control.
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ACS Applied Engineering Materials
·
2026
·
IF 3.5
Luo Dan,Wang Rui,Chang Tong,Jia Lijuan,Li Dong,Lu Kuan,Wei Yuxue
The Fischer−Tropsch synthesis (FTS), the key industrial process for the transformation of syngas into valuable chemicals and clean fuels, benefits from advanced catalyst design. Iron carbide nanoparticles (Fe 3 C) and their graphene oxide-derived counterpart (Fe 3 C/Graphene) were successfully synthesized. Fe 3 C/Graphene exhibits a large specific surface area, high pore volume, and abundant surface defective sites provided by the reduced graphene oxide support. Together with the stabilized Fe 3 C active phase, these features promote CO activation and C−C coupling, leading to enhanced CO conversion, higher C 5+ selectivity, and suppressed CH 4 formation comparedwith Fe 3 C. Density functional theory calculations reveal that the improved CO activation on Fe 3 C/Graphene originates from reduced electron transfer and weakened Fe−C and C−O bonds. For Fe 3 C, the rate-determining step is CO* + H* → CHO*, whereas for Fe 3 C/Graphene, the rate-determining step is CHO* → CH* + O*. It also reveals that Fe 3 C/Graphene accelerates this step, corroborating the enhanced CO activation observed experimentally. Furthermore, the simulations confirm that defective graphene significantly raises the effective barrier for methanation, perfectly rationalizing the suppressed CH 4 formation. These findings demonstrate that the introduction of graphene oxide is a effective strategy for tailoring the catalytic performance of Fe-based FTS catalysts.
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Advanced Optical Materials
·
2026
·
IF 7.2
Xiao Xu,Weixin Xu,Xiaofeng Liu,Renren Deng,Min Zhou,Zicheng Wen,Jianrong Qiu
The development of scintillators that combine strong X-ray excited optical luminescence (XEOL) with minimal afterglow is pivotal for advancing dynamic X-ray imaging applications. Herein, we report a facile strategy for the simultaneous optimization of scintillation properties in NaLuF 4 :Tb/Gd nanoscintillators (NSs) through precise control of co-precipitation temperature. Elevating the reaction temperature from 300°C to 320°C yields a monotonic enhancement in XEOL intensity along with a significant reduction in X-ray excited persistent luminescence (XEPL). This synergistic effect is attributed to temperature-induced improvement in crystallinity and a substantial decrease in the number of charge-trapping defects. The optimized NaLuF 4 :Tb/Gd NSs were fabricated into a flexible composite film, which exhibits excellent stability and enables high-resolution (14.1 lp mm −1 ) dynamic X-ray imaging. This work provides a scalable pathway for optimizing scintillation yield while suppressing afterglow in fluoride NSs.
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CATALYSIS LETTERS
·
2026
·Vol. 156
·期 6
·156
·
IF 2.5
Tao Kun,Zhao Chao,Yu Wenya,Hu Shengye,Xue Hui,Zhang Mengmeng M.
Converting CO 2 into valuable chemicals is a sustainable way to address the energy and environmental crisis, yet achieving high selectivity toward CO remains challenging. Here, a S-doped copper-bismuth oxide (S-CuBiO x ) catalyst with a hierarchical structure was synthesized via a facile solution method toward selectively producing CO from CO 2 . The prepared S-CuBiO x exhibits a 91.3% CO Faradic efficiency at −0.9 V RHE in an H-type cell with 0.5 M KHCO 3 solution, delivering a 3.8-fold enhancement compared to the undoped CuBiO x , while decreasing the H 2 and HCOOH by-products to 2.6% and 4.5%, respectively. The doped-S can be responsible for the excellent CO selectivity, namely, the S dopant induces S-M-O (M = Cu or Bi) bond formation and tunes the local electronic structure of S-CuBiO x , thus benefiting *COOH formation/stabilization and accelerating the reaction kinetics toward CO. This work provides a rational design strategy for steering CO 2 RR selectivity toward CO via non-metal heteroatom doping in bimetallic oxide systems. Graphical The alternative text for this image may have been generated using AI.
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LANGMUIR
·
2026
·
IF 4.4
Honglin Li,Yingqi Duan,Qingwen Feng,Linjiao Wei,Jingbin Zeng,Ziyue Chen,Qingtong Zhang,Yanpeng Chen,Zifeng Yan
Ag–Cu tandem catalysis provides an effective strategy to enhance C2+ selectivity in the electrochemical CO2 reduction reaction (CO2RR) by integrating CO generation and utilization for C–C coupling. Here, we report a series of Ag@Cu2O, Ag@CuO, and Ag@CuO-BDC core–shell catalysts designed to regulate the CO generation, Cu-oxidation states, and surface structures. The Ag@Cu2O catalysts exhibit pronounced tandem effects, suppressing CH4 formation while enhancing the C–C coupling on the Cu sites. Notably, Ag@Cu2O-30 achieves a high C2H4/CH4 Faradaic efficiency ratio of 6.5 at −1.8 V (vs RHE) with an increased C2H4 partial current density of 12.3 mA cm–2. Oxidation to Ag@CuO further modifies the Cu species distribution, facilitating CO and CO2 diffusion while reducing H2 formation. Moreover, constructing Cu-BDC-MOF followed by electrochemical reconstruction generates additional oxygen vacancies and stabilizes Cu+ species, enhancing C2H4 selectivity and stability but with increased CH4 formation and reduced current density. This study highlights Ag–Cu tandem catalysis and structural regulation of Cu as effective strategies for achieving selective reduction of CO2 toward C2H4.
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PubMed
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JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
·
2026
·
IF 5.2
Siyuan Chen,Lihao Gu,Chenglong Ye,Xinyi Zhao,Xingxing Zhang,Jianming Xu,Dan Luo,Xi Wang,Jia Luo,Jun Deng,Wei Liu
Hyperpigmentation remains a significant dermatological challenge. Although 4-butylresorcinol (4-BR), undecylenoyl phenylalanine (UPA), and stearyl glycyrrhetinate (SG) exhibit complementary mechanisms targeting these pathways, their therapeutic potential is limited by poor solubility, instability, and insufficient skin permeation. To overcome these barriers, a nanostructured emulsion system co-encapsulating 4-BR, UPA, and SG (BUS-NEs) was developed via high-pressure homogenization. The optimized BUS-NEs displayed a mean particle size of 55.01 nm, encapsulation efficiencies exceeding 90%, good stability, and a sustained release profile. Compared with Free-BUS, BUS-NEs significantly improved cellular uptake and skin permeation while maintaining excellent biocompatibility. Mechanistic studies revealed that BUS-NEs exerted superior anti-melanogenic effects by potently inhibiting intracellular tyrosinase activity, reducing melanin production, and downregulating key genes in the α-MSH-stimulated signaling pathway. Furthermore, BUS-NEs displayed robust antioxidant and anti-inflammatory activities, effectively scavenging ROS and suppressing the secretion of pro-inflammatory cytokines. These multifunctional benefits were validated in advanced models: BUS-NEs significantly reduced melanin deposition and improved skin brightness in UVB-irradiated 3D reconstructed human skin, and demonstrated pronouncedc depigmentation and antioxidant protection in vivo using zebrafish models. In conclusion, the BUS-NEs platform successfully overcomes the delivery limitations of 4-BR, UPA, and SG, enabling their complementary, multi-target action for effective hyperpigmentation management, representing a promising nanotechnological strategy for advanced dermocosmetic applications. Download: Download high-res image (304KB) Download: Download full-size image
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JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2026
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IF 4.4
Nan Zheng,Xinyue Liu,Meng Lan,Xiaoli Dong,Yubo Zhang
Co-TiO 2-x with abundant OVs made via one-step hydrothermal. • Optimal sample: high NH 3 yield, good stability & selectivity. • Co & OVs enhance N 2 adsorption/activation for sustainable NH 3 . Photocatalytic nitrogen fixation represents a promising green technology for ammonia synthesis, but its efficiency is largely limited by the adsorption and activation of N 2 molecules on catalyst surfaces. In this study, cobalt-doped brown TiO 2-x with abundant oxygen vacancies was successfully synthesized via a simple one-step hydrothermal method. The brown TiO 2-x exhibits excellent light absorption capacity and abundant oxygen vacancies. Cobalt doping further promotes the separation of photogenerated charge carriers and the photocatalytic reduction ability of brown TiO 2-x , while also inducing the generation of additional oxygen vacancies (OVs). These OVs serve as active sites, effectively improving the adsorption and activation of N 2 , and subsequently reducing it to ammonia. Experimental results demonstrate that the photocatalytic nitrogen fixation performance of the Co doped TiO 2-x is significantly improved. The as-fabricated 7%Co-doped TiO 2-x sample achieves an ammonia production rate of 257.58 μmol·g −1 ·h −1 . In addition, it also exhibits good stability and NH 3 selectivity. This work highlights the promise of coupled doping and defect engineering for creating high-efficiency photocatalysts for sustainable ammonia production. Download: Download high-res image (365KB) Download: Download full-size image
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JOURNAL OF HAZARDOUS MATERIALS
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2026
·
IF 10.6
Suhang Wang,Jiaqing Liang,Yongkai Liao,Haixuan Zhou,Brian J. Reid,Chao Cai
The biodegradation of polycyclic aromatic hydrocarbons (PAHs) involves complex metabolic interactions among multiple degradation pathways. However, how interactions among different pathways influence the overall degradation efficiency remains poorly understood. In this study, Pseudoxanthomonas sp. G3, an efficient degrader of phenanthrene (PHE) and pyrene (PYR), was used to investigate pathway interactions under mixed-PAH conditions. Genomic and metabolomic analyses revealed that strain G3 degrades PHE and PYR through three pathways: the phthalate pathway (with phthalic acid as the dead-end product), a shared catechol degradation pathway, and the benzoate degradation pathway. Notably, PYR induced the benzoate degradation pathway, representing a previously unreported metabolism of PYR by bacteria. Integrated analyses revealed that PHE inhibits PYR degradation via dual mechanisms. Specifically, PHE preferentially utilizes the PYR-induced benzoate degradation pathway, thereby diverting metabolic flux and impeding PYR degradation. Moreover, the benzoate degradation pathway further inhibits the catechol degradation pathway, intensifying suppression of PYR degradation. These findings elucidate mechanistic insights into the interactions among the biodegradation pathways under mixed-PAH stress and provide a theoretical basis for targeted improvement of the efficiency and predictability of mixed-PAH degradation.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Feng Yang,Mengling Jiang,Linfeng Fan,Hao Pan,Pei Feng
Co-loaded CNT with high Co 2+ content of 61.07% exhibited enhanced nanozyme activity. • P2 possessed a safe Co-ion release content far below the threshold of 20 ppm. • P2 exhibited good well-rounded properties and excellent anti-inflammatory activity. Excessive reactive oxygen specie (ROS) is not conducive to bone repair, which is prone to generate during the initial hematoma inflammatory phase following poly( L -lactic acid) (PLLA) bone scaffold implantation and the potential inflammation caused by its acidic degradation products. This study proposed introducing cobalt (Co)-based nanozyme into the PLLA scaffold, and focused on improving the dispersion between nanozyme and the PLLA matrix as well as enhancing the activity of nanozyme itself for efficiently scavenging ROS. The Co was loaded on the surface of carbon nanotube (CNT) for achieving uniform dispersion, and then calcined under different atmospheres for enhancing nanozyme activity via regulating the Co 2+ /Co 3+ ratio and optimizing the electronic structure. It was found that the nanozyme that was calcined in an N 2 atmosphere followed by phosphorylation exhibited a superior ROS-scavenging ability, which was attributed to its high Co 2+ content of 61.07% that facilitating the redox cycling and the optimization of its electronic structure by P doping. As a result, the composite scaffold (P2) at a nanozyme loading of 2 wt% possessed superior intracellular ROS-scavenging ability and downregulation of key inflammatory cytokines compared to the pure PLLA scaffold. It also possessed good cytocompatibility for cell adhesion and proliferation, and exhibited upregulated expression of the pro-angiogenic VEGF factor. Download: Download high-res image (228KB) Download: Download full-size image Co-based nanozyme was engineered by promoting dispersion and optimizing the Co 2+ /Co 3+ ratio for highly efficient SOD and CAT, and was used to endow the PLLA bone scaffold with good ROS-scavenging and cytocompatibility.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Peiru Li,Yvnan Liu,Yanhong Lin,Tengfeng Xie,Meng Cui
NiFe-layered double hydroxides (LDH) exhibit excellent oxygen evolution reaction (OER) activity after doping and modification treatments, but their stability under high current densities is considerably limited. The rare-earth element cerium (Ce), owing to its variable valence states, can enhance structural stability by inducing lattice distortion and dynamic redox cycling when incorporated as a dopant. Meanwhile, oxalate ions (OA²⁻), with their larger spatial volume and more uncoordinated carboxylic acid groups (-COOH), act as proton transfer carriers. The synergistic effect between Ce and OA accelerates the OER kinetics of CeNiFe-LDH-OA@NF. The CeNiFe-LDH-OA@NF electrode demonstrates overpotentials of only 242 mV and 256 mV at high current densities of 100 mA cm⁻² and 200 mA cm⁻², respectively. Moreover, it exhibits exceptional stability under high current conditions, showing almost no decay in overpotential after continuous operation for 140 h at 100 mA cm⁻², with a minimal degradation rate of 0.5%. As a proton transfer carrier, the oxalate anion significantly enhances OER kinetics by optimizing the proton conduction pathway at the electrocatalytic interface. In cyclic voltammetry (CV) measurements, a negative shift and an increased slope of the characteristic reduction peak were observed, confirming that OA modification effectively regulates the hydroxyl adsorption energy barrier. The CeNiFe-LDH-OA@NF electrode demonstrates higher surface hydroxyl affinity.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Jiahui Zhan,Ruihong Dai,Baohuan Wei,Ting Sun,Hu Luo,Shumin Li,Xuan Huang,Haozhi Zhou,Lin Xia,Xiaofang Liu,Shunan Zhang,Shicheng Zhang,Hui Wang,Shurong Wang,Yuhan Sun
Co-modified Ni/SiO 2 produces aviation fuel from polyolefins under mild conditions. • Co doping modulates Ni electronic structure to favor internal C-C bond cleavage. • The yield of liquid reaches 82.3% with 79.0% selectivity to the C 8 -C 16 fraction. • Coupled with green energy, the process reduces carbon footprint by 80%. The escalating accumulation of plastic waste poses a major threat to global sustainability. Converting waste polyolefins into aviation fuel offers a promising valorization route, but the challenge remains in overcoming the limited performance of non-noble metal catalysts. Here, a 10Ni-2Co/SiO 2 catalyst was developed that achieved an excellent balance between activity and selectivity for polyethylene hydrogenolysis. Under mild conditions at 280 °C and 3 MPa H 2 , it delivered an 82.3% liquid yield with 79.0% selectivity toward C 8 -C 16 hydrocarbons. The incorporation of Co induced the coexistence of Ni 0 and Ni δ+ species, which may have facilitated internal C-C bond cleavage along the polyethylene backbone. This synergy may have contributed to hydrogen activation and C-C bond cleavage, which may have promoted a continuous “cleavage-hydrogenation-desorption” sequence, thereby helping to suppress excessive chain scission and favoring the selective formation of aviation-fuel-range hydrocarbons. This catalyst also showed broad applicability to other real-life waste polyolefins, and when powered by renewable energy, the process achieved a significantly reduced carbon footprint, offering a sustainable route for plastic upcycling and aviation decarbonization. Download: Download high-res image (175KB) Download: Download full-size image Co-modified Ni/SiO 2 catalyst enables mild and selective hydrogenolysis of waste polyolefins into aviation fuel (C 8 -C 16 hydrocarbons), achieving the highest yield of 65.1%.
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Molecular Catalysis
·
2026
·
IF 4.3
Zhiqin Li,Tengran Luo,Yuxin Kang,Zegang Qiu,Xin Wang
Ni effectively reduces the surrounding electron density of Co and enriches defects in catalyst. • Ni introduction strengthens adsorption of vanillin and H 2 while facilitates desorption of reaction intermediate. • 4Co-1Ni/NPC achieves complete conversion of vanillin with 100% selectivity towards MMP, outperforming Co/NPC catalyst. • Ni incorporation enhances ability of 4Co-1Ni/NPC to cleave C O bond of intermediate. The development of cost-effective catalysts for the selective hydrodeoxygenation (HDO) of biomass-derived platform molecules is crucial to sustainable biorefining. Herein, a series of Co-Ni bimetallic catalysts supported on N-doped porous carbon were rationally designed via pyrolysis of bimetallic Co-Ni zeolitic imidazolate framework (ZIF) with tunable metal ratios. Comprehensive characterization confirmed that Ni incorporation modulated the electronic structure of Co, promoted metal dispersion, generated abundant defect sites, and enriched the surface concentration of metallic Co 0 and Ni 0 species. The optimal 4Co-1Ni/NPC catalyst exhibited a unique layered architecture, a high surface area, and superior capacity for hydrogen activation. Density functional theory (DFT) calculations revealed that Ni introduction effectively lowered the local electron density of Co, which fundamentally adjusted the adsorption/desorption energetics—strengthening the binding of vanillin and H 2 while facilitating the desorption of the target product 2‑methoxy-4-methylphenol (MMP). Under mild conditions the 4Co-1Ni/NPC catalyst achieved complete vanillin conversion with nearly 100% MMP selectivity, significantly outperforming its monometallic counterparts. Moreover, it demonstrated excellent recyclability over five consecutive runs and broad substrate tolerance toward various lignin-derived aldehydes. The reaction was verified to proceed via 4‑hydroxy‑3‑methoxybenzyl alcohol (HMP), with C–O bond cleavage in HMP identified as the rate-determining step. This work elucidates the synergistic mechanism in Co-Ni bimetallic systems and provides a principled design strategy for developing high-performance, non-noble metal catalysts for selective biomass valorization. Download: Download high-res image (176KB) Download: Download full-size image
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