JOURNAL OF CATALYSIS
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2026
·
IF 6
Denghui Cheng,Yang Gao,Huan Yang,Fuqing Gong,Guohao Yin,Yuyang Luo,Yongqiang Tian,Shuheng Chen,Jingbo Du,Jia Yang,Zhen Huang,De Chen
Ammonia decomposition is an appealing method for on-site hydrogen production, enabling ease of transportation and storage of H 2 . However, the high-temperature and hydrogen-rich environment present a challenge in developing highly efficient and stable catalysts. Hence, this study outlines an exsolution strategy for synthesizing a Ni-based catalyst in intimate contact with CeO 2 . The Ce 10 /NiAl 2 O 4 catalyst exhibits competitive catalytic performance for ammonia decomposition reaction, and achieves a hydrogen production rate of 78.3 mmol g cat −1 min −1 at 550 °C. Importantly, the robust structure of the Ce 10 /NiAl 2 O 4 catalyst ensures that no significant deactivation is observed during the 200-h stability test. HRTEM, XRD, TPD and kinetic studies reveals that the presence of CeO 2 enhances the dispersion of exsolved Ni nanoparticles, modulates the surface basicity of catalyst, reduce the reaction activation energy, promote the desorption of nitrogen/hydrogen species, and subsequently promotes NH 3 adsorption/activation capacity·NH 3 -TPD-MS in combination with in-situ DRIFTS demonstrate that CeO 2 could accelerate the recombination and desorption of N* adatoms, which is the rate limiting step, thereby significantly boosting catalytic performance. Furthermore, the DFT calculations reveal that the interaction between CeO 2 and Ni species facilitates electron transfer toward Ni, lowering the barrier for both N–H dissociation and N* recombination and desorption. This work not only presents an efficient and stable noble-metal-free catalyst for ammonia decomposition to generate hydrogen, but also provide a general strategy to engineer high-performance catalysts applicable to harsh catalytic environments.
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高影响因子
LANGMUIR
·
2026
·Vol. 42
·期 31
·23157-23168
·
IF 4.4
Wang Qi,Liu Siyu,Wang Zhikun,Chen Zixiao,Xiao Peiwen,Shao Xianzhen,Li Miantuo,Su Huiling,Fu Yu,Hu Songqing
Designing intelligent anticorrosion systems that couple
robust
protection with real-time corrosion visualization remains a formidable
challenge in industrial safety and infrastructure longevity. Here,
a one-step hydrothermal condensation of 2-aminothiazole and citric
acid yields a multifunctional carbon dot (CD) whose surface is densely
terminated with N-, O-, and S-bearing functionalities. These heteroatom-rich
groups furnish abundant coordination anchors for metal substrates.
Electrochemical assays and gravimetric measurements reveal that the
CD delivers a corrosion inhibition efficiency of 95.18% for N80 steel
in 1 M HCl at a dosage of 200 mg/L. Adsorption conforms to the Langmuir
isotherm with a Gibbs free energy of −31.66 kJ/mol, indicating
a spontaneous mixed physical-chemical adsorption mechanism dominated
by chemisorptive interactions from Fe–N, C–S, and S═O
linkages. Surface analyses confirm a compact, adherent protective
film that strongly retards both anodic dissolution and cathodic hydrogen
evolution. Capitalizing on the intrinsic blue fluorescence of the
CD, the system additionally accomplishes in situ reporting of corrosion
progression: fluorescence quenching occurs synchronously with Fe 3+ /Fe 2+ release as the film degrades. This work
establishes a single-component “protect-and-report”
platform, offering an effective and conceptually innovative strategy
for next-generation corrosion management.
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PubMed
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2026
·
IF 7.9
Yizhen Su,Shitao Zhi,Honglei Zhao,Yuan Wang,Tiyan Yu,Ziqi Zhang,Ben Bin Xu,Chunyan Dai,Linhua Zhu
Oxygen vacancies (Ov) are crucial for modulating electronic structures and catalytic properties. Herein, a vacancy-rich HEDP-MoV heteropoly acid catalyst was synthesized via one-pot hydrothermal method by vanadium substituting molybdenum in phosphomolybdic acid with HEDP as support, focusing on Ov’s role in enhancing oxidative desulfurization (ODS) efficiency. XPS and EPR analyses showed vanadium incorporation (less electronegative than Mo) modulated Mo 5+ /Mo 6+ ratio and linearly increased Ov content from 28.65% (HEDP-Mo 10 V 2 ) to 41.81% (HEDP-Mo 7 V 5 ), promoting electron transfer and activity. The HEDP-MoV system exhibited superior H 2 O 2 activation and ·OH generation, with DBT desulfurization rate 41.6% higher than unsubstituted HEDP-Mo. The optimized HEDP-Mo 7 V 5 achieved 99.1% DBT desulfurization at O/S=3 and 30 o C (milder than most reported PMoV catalysts requiring O/S≥5) and retained 98% activity after 10 cycles. Radical quenching and EPR confirmed ·OH as dominant reactive species, while DFT verified H 2 O 2 dissociation thermodynamics. This study highlights vanadium substitution as an effective defect engineering strategy for HPA catalysts and provides a scalable pathway for mild-condition ultra-deep diesel ODS.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Zineb Ould Yahia,Lianghua Xie,Ahmed K. Rashwan,Bolai Paul,Wei Chen
Cyanidin-3- O -glucoside (C3G), a promising flavonoid with diverse biological properties, faces challenges in functional food application due to instability under various conditions. Therefore, this study aimed to develop a novel gum Arabic-coated nano-nutriosome (GA-C3G-NU) for promoting gastro-intestinal (GI) delivery of C3G and fortification of set-type yogurt (Ygr). The GI digestion study revealed that GA improved the stability of C3G-NU. After freeze-drying, FZD GA-C3G-NU maintained their nanosized, exhibited high encapsulation efficiency ≥90%, and an acceptable PDI ≤0.30. SEM analysis revealed crystal-like structure in GA-C3G-NU, while the XRD study confirmed their decreased crystallinity. Furthermore, the FZD GA-C3G-NU showed significantly controlled release profile ( p < 0.05) of C3G. The GA-C3G-NU didn't negatively affect the yogurt's properties. It maintained the desirable acidity while enhancing water holding capacity, color, texture, microstructure, and compatibility with lactic acid bacteria. Overall, GA-C3G-NU could be a promising carrier for enhancing C3G's gastrointestinal delivery, with potential use in dairy products.
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高影响因子
ACS Omega
·
2026
·
IF 5.2
Xiaojing Yao,Jiangli Lin,Ruijia Yang,Xiuling Zhu,Xiangyun Wei,Shishan Zhou,Bohang Cang,Wenhao Zhang,Jiaolong He,Zhen Su
Abstract This study addresses the problems of strong temperature dependence, low demulsification efficiency, and long treatment time for oil-in-water (O/W) emulsions in the petroleum industry. Using polyethylene glycol/polyethylene glycol monomethyl ether (PEG/mPEG) as the hydrophilic polyether backbone, a novel amphiphilic polyether ester–amide demulsifier PEOSu-C18 was designed and synthesized by succinic acid esterification and terminal modification with octadecyl amide to introduce hydrophobic octadecyl-amide segments at polymer chain ends. The linear polyether-ester backbone supplies interfacial adsorption capacity, while terminal long-chain octadecyl hydrophobic segments provide effective interfacial displacement and hydrophobic interactions. Demulsifier dosage, temperature, time, and pH were systematically studied for oil-removal performance. PEOSu-C18 achieved an oil-removal efficiency above 98% within 30 min at a low dosage of 100 mg/L. It maintained excellent performance over a wide temperature range (30–60 °C) and possessed favorable salt tolerance, which can cut the energy and time costs of traditional demulsification. PEOSu-C18 was characterized via FTIR and 1H NMR. Its demulsification mechanism was explored by dynamic interfacial tension, Zeta-potential, and optical microscopy. Results reveal that PEOSu-C18 rapidly migrates to the oil–water interface, competes with and displaces negatively charged kaolinite particles through steric hindrance and hydrophobic interaction, breaks the rigid interfacial film, and accelerates oil-droplet coalescence. This work provides an efficient, rapid, and energy-saving demulsifier with promising prospects for complex oilfield-produced-fluid treatment.
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高影响因子
Journal of Energy Storage
·
2026
·
IF 10.7
Dong Deng,Yuhan Li,Gang Liu,Xinmei Liu,Qianshi Wang,Hongfei Chen,Dongbo Wang,Mingyang Wu,Minghan Li,Fei Li,Yuewu Huang,Liancheng Zhao
BiOCl and its derivatives show considerable promise for supercapacitor applications because of their high theoretical specific capacity and rich redox activity. However, their practical performance is often limited by poor electrical conductivity and structural instability. To address these issues, we constructed a BiOCl/Bi₂₄O₃₁Cl₁₀ heterojunction to improve both charge transport and structural stability. A flake-like BiOCl precursor was first synthesized and then electrochemically treated at a constant current of 0.02 A over a wide pH range (1−13) to generate a BiOCl/Bi₂₄O₃₁Cl₁₀ heterojunction, denoted as BiOCl-1/24-X. By tuning the pH of the reaction system, pH-dependent formation of a reconstructed Bi₂₄O₃₁Cl₁₀ phase on the BiOCl surface was achieved, thereby strengthening the interfacial interaction between the two phases. This interfacial reconstruction process modulated the extent of heterointerface formation and the concentration of oxygen-vacancy-related defects, thereby promoting ion transport and charge-transfer kinetics. The results indicate that the sample treated at pH = 9 exhibits battery-type energy-storage behavior dominated by diffusion-controlled processes. Accordingly, it delivered a specific capacity of 411C·g −1 at 1·A g −1 , far exceeding that of pristine BiOCl (80C·g −1 ). Moreover, it retained 79.3% of its initial capacity after 10,000 cycles. It also achieved an energy density of 35.67 Wh·kg −1 at a power density of 923.83 W·kg −1 . In a practical demonstration, the BiOCl-1/24//AC device powered a 3.2 V LED for 900 s, highlighting its application potential. This work proposes a facile electrochemical interfacial reconstruction strategy for developing high-performance electrode materials, offering a simpler and more effective alternative to conventional chemical methods.
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FUEL
·
2026
·
IF 7.8
Kande Liu,Sitan Wang,Ranran Tao,Ziying Ju,Lishan Zheng,Naiwang Liu,Fahai Cao,Xuan Meng,Li Shi
As a vital chemical intermediate, o-cresol is integral to many high-value manufacturing processes. Its synthesis via the methylation of phenol using methanol represents a green and atom-efficient route. Despite exhibiting promising ortho -selectivity, conventional α-Fe 2 O 3 catalyst are often limited by insufficient activity under mild conditions, restricting their practical utility. To address the limited catalytic efficiency of conventional α-Fe 2 O 3 in low-temperature o-cresol synthesis, a nano α-Fe 2 O 3 catalyst was fabricated using a polyethylene glycol (PEG) assisted precipitation method. The catalyst was comprehensively characterized using XRD, N 2 physisorption, TEM, NH 3 -TPD, XPS and EPR. These analyses elucidated the role of PEG in the catalyst synthesis, demonstrating that the PEG-assisted method significantly enhances specific surface area, acidity and oxygen vacancies, thereby collectively improving catalytic performance. Compared to α-Fe 2 O 3 , the novel catalyst achieved a significantly higher phenol conversion of 15.8 % versus 8.5 % under 340 °C and 3 h −1 . Furthermore, the amount of PEG added in the assisted precipitation process was optimized and the mechanism of the phenol methylation reaction over 2.5PEG/α-Fe 2 O 3 was clarified. The results provide a basis for designing efficient catalysts, thereby facilitating their industrial application in o-cresol production.
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高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2026
·
IF 5.2
Yuqing Feng,Ziyan Tang,Jiaxian Tan,Hongxia Liu,Yingsen Fang,Shumei Gao,Ping Sun,Hui Wang,Hui Liu
Non-metallic photocatalysts represent a promising avenue for the green remediation of organic wastewater. In this study, O-doped g-C 3 N 4 (OCN) was synthesized using a one-step calcination strategy and synergistically coupled with periodate (PI) under visible light to develop a novel non-radical OCN/PI/Vis photo-Fenton-like system for the efficient degradation of Acid Orange 7 (AO7). Systematic characterization techniques, including transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) and photoluminescence (PL), along with density functional theory (DFT) calculations, were employed to elucidate the catalyst properties, oxidant adsorption, and reaction mechanisms. The OCN/PI/Vis system achieved a 93.9% removal of AO7 within 20 min and exhibited a reaction rate constant ( k = 1.48 × 10 −1 min −1 ) that was 4.4 times higher than that of the OCN/Vis system, significantly outperforming traditional oxidant-coupled systems (PMS/PDS/H 2 O 2 ). DFT calculations indicated that OCN exhibited an ultra-strong PI adsorption affinity ( E ads = −2.541 eV), leading to the elongation of the PI I-O bond and facilitating its activation. Quenching and electron paramagnetic resonance (EPR) experiments confirmed that singlet oxygen ( 1 O 2 ) is the dominant reactive species. Notably, the system demonstrated excellent anti-interference performance. This work establishes a high-efficiency, metal-free photo-Fenton-like system for dye wastewater treatment and provides a theoretical and experimental foundation for the rational design of g-C 3 N 4 -based PI activators, thereby opening new avenues for PI-based advanced oxidation processes (AOPs) in environmental remediation.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Tian Yuan,Shiyu Lv,Xueyan Zhang,Weilin Fu,Pu Yang,Kerong Fu,Qiuxian Zhang,Xia Yao,Yanli Luo,Feng Wang
Phosphate ore reserves are insufficient for sustained human use, and the resource recovery of condensed phosphates in water bodies remains challenging. Herein, nanomagnesia (AA-MgO) with coexisting magnesium and oxygen vacancies was synthesized via the sacrificial template method using metal–organic frameworks. AA-MgO achieved efficient condensed-phosphate catalysis and simultaneous orthophosphate recovery in an electrocatalytic coupling adsorption system. Its unique dual-vacancy structure considerably enhanced its electrocatalytic performance. Under optimal conditions, AA-MgO showed adenosine triphosphate (ATP) and pyrophosphate (P ∼ P) removal rates of 98.75% and 98.20%, respectively, exhibiting 2.06–13.23 times better pseudo-first-order kinetics than commercially available MgO. After being regenerated thrice, AA-MgO maintained a > 70% removal rate, demonstrating excellent structural stability. Quenching and radical-trapping experiments confirmed that the catalytic process involved radical and nonradical pathways, with ·OH playing a dominant role in catalyzing ATP, while the nonradical pathway involving 1 O₂ contributed more significantly to P ∼ P degradation. Density functional theory calculations showed that the ATP adsorption energy was higher on the V Mg + V o surface than on the V o surface. Moreover, the energy barrier of the rate-determining step in P ∼ P degradation was lower on the former, indicating that this surface favored condensed-phosphate degradation. Finally, differential charge and electrochemical characterization revealed that AA-MgO exhibited superior electron transfer rates than MgO.
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高影响因子
ACS Catalysis
·
2026
·
IF 13.6
Jiankang Zhang,Yongsheng Wei,Hongxia Zhang,Zhiwei Zhu,Jinghui Yang,Liancheng Bing,Changqing Chu,Xiaofeng Gao,Dan Feng,Qiming Sun,Yong Qin
Bimetal cluster catalysts present boosted catalytic performance in numerous reactions due to their coordinatively unsaturated metal sites and synergy. Nevertheless, constructing ultrafine and stable bimetal cluster catalysts that can be well applied under harsh high-temperature reaction conditions is still a tough challenge. Herein, we propose a spatial and chemical dual-confinement strategy to design hierarchical ZSM-5 zeolite-confined PtZn bimetal catalysts with ultrafine clusters (ca. 1.2 nm) and high stability against sintering, which can be controllably synthesized via a microwave-assisted one-pot hydrothermal approach. The optimized PtZn@ZSM-5 cluster catalyst exhibits remarkably boosted propane dehydrogenation (PDH) performance, with a propane conversion of ca. 60% and a propylene selectivity of >96% (WHSV = 3 h–1, 600 °C). Both experimental and theoretical studies demonstrate that Pt species are well anchored by the hierarchical pores and framework zinc, constructing highly dispersed active Pt–(O–Zn)x species responsible for the boosted catalytic performance. This work affords a facile and general dual-confinement strategy to synthesize ultrafine bimetal cluster catalysts for PDH, which can be well extended to other catalyst systems, such as RhZn@ZSM-5 and IrZn@ZSM-5.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Sihui Wang,Feng Liu,Meng Sun,Hongchun Gu,Lei Yang,Xun Feng,Yang Chen
Hydrogen peroxide (H₂O₂) in skin tissue serves as a critical biomarker for oxidative stress and physiological status, yet its precise in situ monitoring remains challenging due to the lack of non-invasive, real-time sensing platforms. Herein, we presented a smartphone-assisted biosensing system based on a nanozyme-integrated hydrogel microneedle patch for on-site and quantitative detection of cutaneous H₂O₂. The sensing platform incorporated a palladium-embedded metal-organic framework (Pd-PCN) with enhanced peroxidase-like activity, which was co-immobilized with a chromogenic substrate in a polymeric composite hydrogel microneedle array. This composite matrix maintained structural integrity and biocompatibility during short-term skin application while providing an aqueous microenvironment favorable for nanozyme-catalyzed reactions. Upon insertion into the skin, H₂O₂ from interstitial fluid would diffuse into the microneedle and trigger a colorimetric reaction. The resulting color intensity could be quantitatively captured via smartphone-based RGB analysis. The system demonstrated a wide linear detection range (5~100 µM), a low detection limit (1.53 µM), high reproducibility (RSD < 5%), and negligible interference from common biological substances. Confocal imaging and mechanical testing further confirm the structural stability and skin-penetration capability of the microneedle under operational conditions. This work established a reliable, minimally invasive, and user-friendly platform for continuous monitoring of oxidative biomarkers in skin, paving the way for personalized dermatological care and point-of-care diagnostics.
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高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.5
Qing Cheng,Yuqi Zhang,Yingying Cao,Long Liu,Yanqiang Zhang
The novel ionic liquid-H2O2 propellants are urgently to solve the intrinsic ignition problem for achieving the aerospace applications. We addressed this issue by tuning the d-band center to adjust the catalyst's adsorption strength for IL/H2O2 toward the optimal value, thus enhancing catalytic activities for the efficient decomposition of H2O2 to generate reactive oxygen species. Herein, the regulation of the d-band center of Cu(I) in Cu(I)-MOF catalyst by precise ligand engineering design was studied. Remarkably, The Cu-S3 coordination of Cu-SH' shifts its d-band center closer to the Fermi level, promoting the adsorption of [BMIM]N(CN)2 and H2O2. Cu-SH' enables efficient H2O2 activation and robust •OH and 1 O2 generation to trigger the rapid self-ignition of [BMIM]N(CN)2-H2O2 propellant. The resulted tid as low as 18.4 ms is nearly 34% lower than that of homogeneous catalyst [FcCH2N(CH3)3]2[Cu2I4]. This work provides fundamental insights into the design of efficient ligand-based combustion catalysts for the higher performance of rockets and spacecrafts.
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高影响因子
危险品化学品经营许可证（带存储）