FUEL
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2026
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IF 7.8
Zhiying Qiu,Yu Fang,Ting Xiong,Luna Ruan,Yixuan Wang,Cheng Chen,Junyuan Xu,Chao Liu,Zhiqing Yang,Hengqiang Ye,Lihua Zhu
The selective hydrogenation of α, β-unsaturated aldehydes to unsaturated alcohols is of great industrial significance, yet the development of highly active and stable catalysts remains a substantial challenge. This study employs hydrothermal and sodium borohydride reduction methods to synthesize high-performance PtCo/La 2 O 2 CO 3 catalysts for cinnamaldehyde selective hydrogenation. The electronic interaction between Pt and Co (electrons transferring from Pt to Co) can be precisely tailored by adjusting Pt and Co contents, which effectively modulates activation behavior of H 2 on the catalyst surface. This electronic modulation leads to distinguished catalytic activity, with PtCo/La 2 O 2 CO 3 -3 (Pt-1.75 wt%, Co-0.45 wt%) exhibiting the weakest Pt-Co interaction and thus achieving the excellent catalytic performance (cinnamaldehyde conversion-97.7%, cinnamyl alcohol selectivity-90.7%) under mild conditions (60 °C, 1.5 h, 2.0 MPa H 2 ). This study elucidates the synergistic mechanisms in PtCo bimetallic catalysts and establishes a versatile strategy for designing efficient multifunctional catalytic systems through the integration of bimetallic synergy.
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JOURNAL OF CATALYSIS
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2026
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IF 6
Jie Wang,Feng Gao,Jilei Lin,Chunjuan Zhang,Meiqing Shen,Linghui Kong,Gurong Shen
Ammonia is emerging as a promising carbon-free energy carrier. The electrocatalytic ammonia oxidation reaction (AOR), highly structure-sensitive, exhibits exceptional activity on Pt nanocubes (NCs) with (100) facets. Yet, synthesis methods employing metal carbonyl capping agents inevitably introduce residual metals, whose catalytic effects are often neglected. Here, Pt NCs synthesized with Mo(CO) 6 were found to contain trace Mo both in the bulk and at the surface. Surface Mo species, partially oxidized to MoO x , substantially modify the electronic structure of Pt(100), lowering activation barriers for rate-determining AOR steps and enhancing resistance to nitrogen poisoning. These effects collectively boost AOR performance, enabling a direct ammonia fuel cell with a Pt-154 anode to achieve a peak power density of 26.7 mW cm −2 . These results reveal the overlooked impact of capping-agent-derived contaminants in AOR and point to the deliberate incorporation of heterometallic modifiers as a viable strategy for advanced electrocatalyst design.
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Journal of Materials Chemistry A
·
2026
·
IF 9.2
Siyuan Peng,Yu Guo,Kun Zhu,Hao Wang,Yunrong Dai,Lifeng Yin
Tetracycline (TC) persists in aqueous environment and is difficult to remove. Peroxymonosulfate (PMS) activation has high selectivity for removal of TC. However, the existing PMS catalysts still suffer from low efficiency, low stability, and metal ion leaching. To address these issues, a cobalt single-atom catalyst on carbon nitride quantum dots (Co@CNQDs) was synthesized via a hydrothermal method and used to degrade TC. In this catalyst, atomically dispersed Co-N sites anchored on g-C3N4, strongly coupled with CNQDs formed a dense and highly accessible catalytic interface. This structure provided abundant catalytic active sites and erosion resistance stability. With PMS, only 20 mg L-1 of Co@CNQDs was required to remove almost all TC in 1 min across a wide pH and temperature range, while dissolved Co leaching remained very low. The characterization results revealed that PMS is initiated at Co-N sites via O-O bond scission to generate 1O2 as the dominant oxidant, whereas ·OH/SO4·– mainly sustain the Co(II)/Co(III) cycle. TC mainly undergoes demethylation, hydrolysis, and ring-opening, ultimately yielding small-molecule organic products, CO2 and H2O. Toxicity analysis showed that acute aquatic and developmental toxicity, bioaccumulation potential, and mutagenicity all decreased from during the TC degradation, indicating stepwise detoxification. This work develops a new stable Co@CNQDs PMS catalyst that enables efficient and environmentally friendly degradation of TC in aqueous environments.
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Materials
·
2026
·Vol. 19
·期 7
·1370
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IF 3.7
Yi Luo,Nan Li,Lingjing Yang,Jinlong Wei,Yuantao Yang,Wentao Wang,Yang Zhao,Ruidong Xu,Xuanbing Wang
The high energy consumption of lead anodes in zinc production is caused by the slow oxygen evolution reaction (OER). We made a La-Mn co-doped β-PbO2anode using electrodeposition to solve this issue. The XRD and XPS results show that adding La shrinks the lattice and changes the electron structure. This helps Mn4+change into active Mn3+and creates more active oxygen on the surface, making the reaction easier. EIS tests show that the charge transfer resistance (Rct) decreased by 4.2 times, decreasing from 147.6 Ω to 34.72 Ω at 1.0 V. The Bode phase peak also moved to a lower frequency (from 122 Hz to 0.215 Hz), proving that the electrochemically active surface area (ECSA) increased significantly. At the industrial current of 50 mA cm−2, the anode shows a low overpotential of 840 mV and a Tafel slope of 265 mV dec−1. This improved performance saves 187.10 kWh of energy per ton of zinc. Therefore, the LaMn-β-PbO2anode is a promising and energy-saving option for industrial zinc production.
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PubMed
高影响因子
CHEMICAL PHYSICS LETTERS
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2026
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IF 2.9
Shuting Li,Peng Su,Fang Wang,Yuanyuan Liu,Xinjing Xu
Gd 3+ -doped ceria Ce 0.8 Gd 0.2 O 1.9-δ (GDC) is a well-known electrolyte for solid oxide fuel cell technology. This study is designed to understand the influence of Ca 2+ doping in GDC on the electrical conduction behavior, in particular the electronic conductivity, of the resulting electrolytes. Using a sol-gel method, Ce 0.8 Gd 0.2-x Ca x O 1.9-δ (C x GDC; x = 0.01, 0.03, 0.05, and 0.10) electrolyte materials were synthesized and studied. It revealed that Ca 2+ doping significantly improved the total conductivity of the electrolyte and, at the same time, suppressed its electronic conductivity. At 750 °C, C 0.03 GDC has a total conductivity of 0.069 S cm −1 , 1.4 times higher than that of GDC, whilst has an electronic conductivity of 4.13 × 10 −5 S cm −1 , 81% lower than that of GDC. The electrolyte-supported C 0.03 GDC single cell delivers a maximum power density of 0.399 W cm −2 at 750 °C, more than 40% higher than the GDC single cell. Additionally, the open circuit voltage of the C 0.03 GDC single cell reaches 0.98 V at 550 °C, in contrast to the 0.90 V of the GDC cell. The superior performance of this C 0.03 GDC single cell is attributed to not only the enhanced total conductivity but also the suppressed electronic conductivity of the C 0.03 GDC electrolyte.
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COLLOIDS AND SURFACES B-BIOINTERFACES
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2026
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IF 5.9
Xiaorong Gou,Jiayi Li,Qianyuan Yu,Xinxin Hao,Shiyu Li,Yiyi Zhang,Hong Deng,Hua Guo,Xue Yang,Weiqi Zhang
Trehalose (Tr) is a naturally occurring disaccharide extensively used as a stabilizing and cryoprotective agent for protein and cell preservation. Owing to its unique bioactivities, Tr-based biomaterials have recently emerged as a promising class of functional materials for biomedical applications. In this work, we reveal that Tr can protect lysosomes from the damage caused by verteporfin (VP), a clinically used photosensitizer. Inspired by this finding, a Tr nanogel (NG) ionically crosslinked with ferric ion was designed for the enhanced photodynamic therapy (PDT) of VP using a murine 4T1 breast cancer model. The constructed Tr/VP NG demonstrates a hydrodynamic diameter of 157.1 ± 2.8 nm, effective cellular uptake and a light-induced reactive oxygen species (ROS) generation in cells. Compared with free VP, the Tr/VP NG exhibits a comparable phototoxicity but with relieved dark toxicity in vitro , which could be evidenced by a less lysosomal leakage in cells and a lower hemolytic activity. Moreover, the Tr/VP NG mediates an elongated tumor accumulation of VP and meanwhile significantly improves antitumor PDT efficacy in vivo . This Tr/VP NG highlights both the feasibility of lysosome protection to minimize undesired dark toxicity of VP and a facile approach for engineering Tr-based materials.
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PubMed
高影响因子
International Journal of Analytical Chemistry
·
2026
·Vol. 2026
·期 1
·6094234
·
IF 2.8
Amna Naz,Muhammad Farooq,Muhammad Sarfraz,Ahsanullah Unar,Rouheena Shakir,Hafiz Arfat Idrees,Nadia Anwar
Oleanolic acid (OL) and genistein (GN) are bioactive compounds known for their anti-inflammatory, antioxidant, antiviral, cardioprotective, and anticancer properties. Their synergistic therapeutic potential motivated the development of a hybrid nanoformulation, comprising GN nanoparticles incorporated into an OL-loaded liposomal system named GOL. The formulation was extensively characterized for particle size, polydispersity index, zeta potential, entrapment efficiency, and pharmacokinetic behavior, demonstrating its suitability for co-delivery of both drugs. To accurately quantify OL and GN in the GOL system, a robust HPLC-UV method was developed and validated. Simultaneous determination was challenging due to distinct chemical and spectral properties; OL showed λmax at 210–215 nm, while GN had λmax at 215, 270, and 336 nm. Optimization using a Box–Behnken design yielded a method using a C18 column with a methanol–acetonitrile–water–tetrahydrofuran (60:20:8:12, v/v) mobile phase and detection at 230 nm. Retention times were 4.8 and 9.9 min for OL and GN. Plasma samples were processed via simple protein precipitation. The method met ICH validation criteria for sensitivity, selectivity, accuracy, precision, robustness, and stability. Finally, the developed method was successfully applied to analyze both drugs from the GOL nanoformulation in both biological fluids and polymeric matrices, enabling a reliable assessment of drug content and stability.
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高影响因子
JOURNAL OF POLYMER RESEARCH
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2026
·Vol. 33
·期 4
·163
·
IF 3.5
Wang Jing,Bai Wei,Wang Gongying,Li Chen,Wang Qingyin
Bisphenol-fluorene-type polycarbonate as a transparent thermoplastic resin, exhibits low birefringence due to the rigid fluorene. In this paper, a series of random co-polycarbonates (BPEF/BPA-PC) were prepared from bisphenol A(BPA), 9,9-bis[4-(2-hydroxyethoxy) phenyl] fluorene (BPEF) and diphenyl carbonate (DPC) using melt transesterification method by adjusting molar ratios of raw materials. The effects of catalyst dosage, polycondensation temperature and polycondensation time on the molecular weight of the products were systematically investigated, and the copolymer structures were characterized by FT-IR, 1 H NMR and 13 C NMR spectra tests; the thermal performance were determined by Differential Scanning Calorimeter (DSC) and thermogravimetric analysis. The molecular weights and their distributions( Đ ) were determined by Gel Permeation Chromatography. The results of GPC showed that the max M w of copolymers reached to 6.8*10 4 g/mol and Đ was 1.81. The maximal thermal decomposition temperature ( T d,5% ) of the co-polycarbonate reached to 359.3 °C. The refractive index of the materials was characterized using an Abbe refractometer and it showed refractive index (n d ) up to 1.640 under visible light. Mechanical property tests showed that the tensile strength of co-polycarbonate were significantly increased when the contents of BPEF was higher, reflecting the enhancement effect of fluorene unit on the rigidity of molecular chain.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Zhenzhong Tao,Huaixiang Li,Dedong He,Zijun Huang,Jun Liang,Jiaming Dong,Xiaohua Cao,Yongming Luo
The reverse water gas shift (RWGS) reaction has garnered significant attention for its ability to selectively convert CO 2 into CO. However, conventional transition metal catalysts often face challenges such as the generation of byproducts at low temperatures and sintering at high temperatures. In this study, a series of Ga/Al 2 O 3 catalysts with varying Ga loadings was prepared using the impregnation method. Notably, these catalysts exhibit nearly 100% CO selectivity across a broad temperature range of 300–700 °C, with stable catalytic activity maintained after 165 h of testing at 600 °C. Characterization reveals Ga species exist as highly dispersed Ga 2 O 3 on the Al 2 O 3 support. The formation of Ga δ+- H species occurs under an H 2 atmosphere, accompanied by the creation of oxygen vacancies. In situ DRIFTS spectroscopy confirms Ga δ+ -H as the key active site for RWGS, and this species undergoes reversible regeneration in a H 2 environment. This work first reveals the pivotal role of Ga δ+ -H in driving the highly selective RWGS reaction. By promoting CO 2 activation and the formation of key formate intermediates, it achieves nearly 100% CO selectivity. This discovery provides novel design insights and theoretical foundations for developing highly efficient CO₂ conversion catalysts.
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CHINESE JOURNAL OF CATALYSIS
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2026
·
IF 17.2
Xuanbei Peng,Mengqi An,Ruishao Mao,Yanliang Zhou,Ming Chen,Dongya Huang,Kailin Su,Shiyong Zhang,Jun Ni,Xiuyun Wang,Lilong Jiang
The development of highly efficient and stable non-precious metal catalysts under mild conditions is highly desirable for NH 3 synthesis. However, the competitive adsorption of N 2 and H 2 on the single site and strong NH 3 adsorption greatly hinder the catalytic efficiency of catalysts under mild conditions. Herein, we propose the use of responsive alkali metal perrhenates (AMReO 4 , AM = K, Na, or Cs) supports with scheelite-type structure that contains active Re metal and promoters to disperse cobalt (Co) species, constructing highly efficient catalysts by regulating the competitive reactant adsorption-activation pattern to a non-competitive mechanism. Our studies demonstrate that Co/KReO 4 catalyst shows excellent catalytic performance for NH 3 synthesis. Co and Re sites synergistically to promote the activation of N 2 molecules, while the adsorption and activation of H 2 primarily occur on Re sites of KReO 4 . The presence of Co species facilitates H-spillover that enables the migration of *H species from Re to Co sites, then cascade catalysis of hydrogen and dissociated nitrogen species to form NH 3 . Accordingly, the NH 3 synthesis rate of Co/KReO 4 (11.48 mmol NH3 g cat −1 h −1 ) is 3.2-fold higher than that of KReO 4 (3.58 mmol NH3 g cat −1 h −1 ) at 400 °C and 1 MPa. This work emphasizes the significance of employing reactive supports containing promoters and active metals, in collaboration with non-precious Co sites, to enhance NH 3 synthesis performance under mild conditions.
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Feng Han,Zhen Ye,Shaoze Wang,Wenfeng Shangguan,Zhi Jiang
Facet engineering is an effective strategy for enhancing the photocatalytic performance of semiconductor single crystals. However, conventional high-temperature solid-state synthesis often suffers from coupled crystallization and grain coarsening, making it difficult to simultaneously achieve high crystallinity, controlled facet exposure, small particle size, and good dispersibility. Herein, we report an integrated strategy combining solid-state recrystallization and facet engineering for the synthesis of small-sized SrTiO3:Rh single crystals with co-exposed (100)/(110) facets. Specifically, this approach employs partially crystallized SrTiO3 nanosphere precursors, which are subsequently subjected to SrCl2 molten-salt-assisted high-temperature recrystallization to enable crystal reconstruction, while suppressing excessive grain growth. The incorporation of Rh, together with the SrCl2 molten-salt environment, influences crystal growth behavior and facilitates selective facet exposure, which is associated with the formation of octadecahedral SrTiO3:Rh single crystals. The resulting particles simultaneously exhibit high crystallinity, anisotropic facet exposure, reduced particle size, and enhanced suspension stability in aqueous media. These structural features are closely correlated with improved charge carrier separation behavior and higher mass-normalized activity under low catalyst loading conditions. Compared with conventional Rh2O3-derived SrTiO3:Rh, the optimized samples exhibit significantly enhanced charge separation behavior and photocatalytic hydrogen evolution performance. Furthermore, upon Cr co-doping, the SrTiO3:Rh,Cr/BiVO4 system with the highest activity among the investigated Cr concentrations, coupled with the Fe3+/Fe2+ redox mediator, achieves an apparent quantum yield (AQY) of 4% under 420 nm monochromatic irradiation and demonstrates stable overall water splitting activity in a liquid-phase Z-scheme configuration.
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高影响因子
ACS Catalysis
·
2026
·
IF 13.6
Chaoxi Wang,Gong Zhang,Shuying Li,Xiaowei Du,Donglong Fu,Xiaoxia Chang,Zhi-Jian Zhao,Peng Zhang
Abstract Electrochemical CO reduction reaction (CORR) on copper is a prototypical platform for studying C–C coupling toward multicarbon (C2+) products, yet the fundamental factors governing this process remain under debate. Particularly, how electrolyte composition regulates interfacial proton transfer and thereby governs C–C coupling pathways is still unclear. This paper describes the role of alkali metal cations in controlling C–C coupling in CORR by restructuring interfacial water and modulating proton transfer dynamics on Cu electrodes. By varying cation identity (Li+, Na+, K+, Cs+) and concentration, we demonstrate that cations with intrinsic larger ionic radii in the electrolyte shift selectivity toward C2+ products. Combining differential electrochemical mass spectrometry (DEMS) analysis with in situ surface-enhanced Raman spectroscopy (SERS) and attenuated total reflection surface-enhanced infrared absorption spectroscopy (ATR-SEIRAS) investigations, it is revealed that alkali metal cations with large intrinsic radii have weak hydration shells that disrupt the interfacial hydrogen-bond (H-bond) network and increase the population of cation-coordinated water molecules at the interface, which may serve as more effective proton transfer channels toward surface intermediates. This reconstruction of interfacial water can accelerate *CO hydrogenation, thus promoting the C–C coupling for C2+ production. These findings identify interfacial water as an active regulator of interfacial proton transfer, thereby supporting a mechanistic link between electrolyte composition and C–C coupling pathways. This work emphasizes the importance of the interfacial microenvironment and molecular-level understanding of electrochemical reactions.
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