COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Tingxue Li,Siling Chen,Xichen Yu,Yang Hu,Hongmei Qin,Chuanxi Xiong,Quanling Yang,Zhuqun Shi
To enhance the electrochemical performance of flexible electronic devices, it is crucial to develop electrode materials with high specific capacitance. The nitrogen-doped carbon aerogel (CA) was synthesized through freeze-drying and carbonization of TEMPO-oxidized cellulose nanofibril aerogel. Inspired by porous media interface strategies, a nitrogen-doped carbon/ nickel-cobalt (Ni-Co) layered double hydroxide composite aerogel (CA-N@LDH) with a hierarchical porous structure was fabricated using a solution deposition method with controlled precursor concentration. X-ray diffraction (XRD) and scanning electron microscopy (SEM) characterization confirmed that the Ni-Co layered double hydroxides were uniformly loaded on the surface of the mesoporous carbon framework in a flower-like layered structure, achieving a specific surface area of 111.8 m²/g and pore size mainly of around 5 nm. When the addition of the precursor was 0.4 mmol, the composite exhibited a specific capacitance of 1892.7 F/g at a current density of 1 A/g, which represents a 6.7 times enhancement compared with pure nitrogen-doped (N-doped) carbon aerogel. X-ray photoelectron spectroscopy (XPS) analysis revealed the synergistic pseudocapacitive contributions from the Co²⁺/Co³ ⁺ and Ni²⁺/Ni³ ⁺ redox pairs, while the graphite-like N introduced by N doping reduced the charge transfer resistance by 42%. This study provides new insights into the design of composite electrodes with high specific capacitance and stability.
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Materials Today Chemistry
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2026
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IF 7.4
Kun Wang,Huihui Yan,Liping Zhao,Ming Wen,Jing Liu,Peng Zhang,Lian Gao
Dry reforming of methane (DRM) offers a promising route for syngas production while mitigating two greenhouse gases (CH 4 and CO 2 ). However, the surface thermodynamics of reactant adsorption remain elusive due to the lack of quantitative tools. Herein, we synthesize self-supporting hollow Al 2 O 3 nanofibers decorated with Ni, NiCo, and NiCu alloys via blow spinning, eliminating the need for pelletization. Among these, NiCo/Al 2 O 3 exhibits superior activity (85% CH 4 conversion at 800 °C) and coking resistance (0.84 wt% carbon after 50 h). For the first time, we quantify the adsorption enthalpies of CH 4 , CO 2 , and H 2 on these catalysts using gas adsorption calorimetry. Notably, CH 4 —a stable tetrahedral molecule—chemisorbs exothermically on Ni sites at 298 K, with enthalpies of −55.2 (NiCo), −78.2 (NiCu), and −87.5 kJ mol −1 (Ni). A strong structure-enthalpy-activity correlation emerges: overly exothermic adsorption hinders catalytic turnover by stabilizing surface intermediates. This thermodynamic framework provides a lens to rationally design DRM catalysts.
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Materials Today
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2026
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IF 24.1
Zhongzheng Yao,He Zhu,Yu Lou,Fan Xue,Jingqian Huang,Hua Ji,Wei-Di Liu,Xindong Zhu,Sinan Liu,Jianrong Zeng,Yang Ren,Xun-Li Wang,Yang Lu,Si Lan
Metallic glasses (MGs), despite exhibiting superior electrochemical catalytic and sensing activity to crystalline solids, remain difficult to rationally design because the structural units that directly correlate to active sites are poorly resolved. Here, we address this challenge by showing that a small change in Ni content (±4 at%) in Ni-Mo-P-B MGs gives precise control of short‑range-ordered (SRO) polyhedral motifs and their medium‑range connections. Synchrotron X-ray analysis reveals that the Ni 64 Mo 16 P 16 B 4 (Ni 64 ) stabilizes ten-coordinated (Z10) bi-capped square archimedean antiprisms (BSAPs) as the dominant SRO polyhedral, whereas Ni 60 Mo 20 P 16 B 4 (Ni 60 ) and Ni 68 Mo 12 P 16 B 4 (Ni 68 ) are dominated by nine-coordinate (Z9) tricapped trigonal prisms (TTPs). Crucially, this engineered SRO dramatically enhances the electrochemical glucose sensing: Ni 64 delivers ultrahigh sensitivity, a wide linear range, and stable operation over seven days, whose performance is far superior to conventional crystalline probes. First-principles calculations reveal that only at a Ni/Mo ratio of 4 does short-range chemical ordering favor the highly symmetric Z10 BSAPs with two Mo atoms occupying the two polyhedral caps. These Mo‑capped Z10 clusters optimally modulate Mo-Ni electronic interactions, lowering the *OH adsorption barrier and boosting catalytic reactivity. A miniaturized glucose sensor was fabricated by integrated the MG with a screen-printed electrode, demonstrating the practical applicability. Notably, we found that the dominant polyhedra show homology to local building blocks of nearby crystalline phases, suggesting that amorphous structures inherit crystal-like motifs that govern both stability and properties. Our work establishes an atomic-scale structural engineering paradigm for MG design, bridging crystalline-amorphous structural homology with functional optimization, and deepening the understanding of structure–property correlations in MG systems.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
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IF 9.2
Zhenyu Tian,Yan Liu,Wanfeng Zhu,Shiji Wang,Wenjia Li
Metal-supported solid oxide fuel cells (MS-SOFCs) are recognized as a critical pathway toward high-efficiency energy conversion and global sustainable development, owing to high mechanical robustness, low cost. However, MS-SOFCs are still limited by gas diffusion. To address this challenge, this study proposes an open graded-pore structure Ni-Fe (GP-NF) support fabricated via a double layer tape casting with a phase inversion process. A Ni-Fe layer is cast onto a graphite sacrificial layer. Through a dynamic solvent/non-solvent exchange process, a graded-pore structure consisting of a skin layer and finger-like pore layer is formed within the Ni-Fe support layer, while the sponge pore layer is generated within the graphite sacrificial layer. Subsequently, the graphite sacrificial layer beneath the Ni-Fe layer decomposes at high temperatures, thereby directly exposing the finger-like pore to air and forming the GP-NF support. The GP-NF support exhibits a high porosity of 53.2%. The polarization resistance ( R p ) of the GP-NF support SOFC is 0.21 Ω·cm 2 , which is 19.2% lower than that of a conventional single-layer tape casting Ni-Fe support (NF, 0.26 Ω·cm 2 ) SOFC. Therefore, the GP-NF support SOFC achieves a peak power density of 1.05 W·cm -2 at 800°C, representing a 72.1% enhancement over the NF support SOFC (0.61 W·cm -2 ). This work demonstrates an improvement in gas transport through strategic structural design, providing a feasible pathway for developing high-performance, highly reliable, and cost-effective MS-SOFCs.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yingying Qian,Jianhai Wang,Yuesong Shen
Heterojunction engineering has garnered significant attention in photocatalysis as an effective strategy to address the rapid carrier recombination dynamics in semiconductor photocatalysts. The core challenge in constructing high-performance heterojunction systems lies in establishing optimized interfacial connections to achieve directional charge carrier migration. This study proposed a temperature-regulated band engineering strategy, through precise control of Ni-MOFs growth temperature and integration with WO 3-x possessing exceptional photothermal conversion capacity, to successfully construct an efficient Z-scheme heterojunction system. When the synthesis temperature of the Ni-MOF reached 140 °C, its conduction band negatively shifted to −1.2 eV (vs. NHE), resulting in a well-matched Z-scheme heterojunction with WO 3-x . The optimized 140-Ni-MOF/WO 3-x heterojunction demonstrated remarkable enhancement in charge separation efficiency while preserving strong redox capabilities through the Z-scheme charge transfer pathway. Under mild gas-solid reaction conditions (H 2 O as electron donor), the optimized catalyst exhibited excellent CO 2 reduction performance, achieving a CO production rate of 111.17 μmol·g −1 with 96.92 % selectivity. The temperature-depended modulation strategy for MOF electronic band structure proposed in this study paved the way for constructing efficient MOF-based photocatalysts.
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Materials Today Energy
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2026
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IF 8.6
Yakai Hao,Mingqiu Bao,Huijin Chen,Yuchuan Zhu,Ruoxi Yang,Ruirui Yue,Jinbing Shu,Jingkun Xu
Catalysts with high-efficient performance, high durability and low cost are still urgently needed to promote the wide application of direct alcohol fuel cells (DAFCs). This work prepared a PdNi/PPy composite by dispersing Ni-doped Pd nanoparticles on coarse polypyrrole (PPy) granules via facile interfacial redox and polymerization. The optimized PdNi/PPy composite possesses a porous morphology and uniform dispersion, which are key for achieving performance synergistic optimization in alcohol oxidation reactions (AORs). Specifically, for ethylene glycol oxidation (EGOR), the PdNi/PPy achieves mass activity (MA, 5577.2 mA mg Pd −1 ), specific activity (SA, 32.3 mA cm −2 ), and intrinsic activity (TOF, 6.8 s −1 ), which are 7.9, 3.0 and 2.7 times those of commercial Pd/C, respectively. It also exhibits higher activity for ethanol and methanol oxidation compared to other catalysts. Characterizations demonstrate that the synergy between Ni-doped Pd and conductive PPy significantly enhances catalytic properties. The electronic structure of Pd is optimized via Ni-doping induced d-band center modulation and efficient interfacial charge transfer through heterojunction formation. Additionally, the PPy support facilitates uniform dispersion and maximizes active site exposure. This work can offer meaningful insights for the development of advanced anode catalysts by effective doping of active metals and further strengthening of the carrier effects for DAFCs.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Ruibin Xiong,Xiaohua Cao,Xingfu Li,Miao Lin,Dedong He,Yubing Li,Jichang Lu,Yongming Luo
Low-temperature CO 2 methanation efficiently enables efficient conversion of CO 2 into methane under mild conditions, presenting substantial potential for enhanced energy efficiency and economic feasibility. However, achieving highly efficient low-temperature CO 2 activation remains a critical challenge due to inherent kinetic constraints. In this study, the inverse-supported Ce/Ni catalyst (11 mol% Ce/Ni) was synthesized, which achieved 82% CO 2 conversion and nearly 100% CH 4 selectivity under photothermal synergy at 220 °C (300 W xenon lamp, 300–2500 nm, 1.5 W·cm −2 ), outperforming most conventional nickel-based catalysts. Moreover, the catalyst exhibited outstanding long-term stability, with only an 8% activity loss after 100 h of continuous operation. This superior performance was attributed to its CeO 2 -Ni interfacial configurations and abundant oxygen vacancies. In situ diffuse reflectance infrared Fourier transform spectroscopy analysis revealed that the CO₂ methanation over this catalyst proceeds via a dual-intermediate pathway involving CO* and HCOO*, with photothermal synergy significantly accelerating the intermediate conversion without altering the intrinsic reaction pathway. This study establishes an innovative strategy for designing low-temperature and high-performance CO 2 methanation catalysts via the integration of an inverse Ce/Ni configuration with photothermal synergy.
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PubMed
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 13.2
Yinze Yang,Pengxiao Wei,Yan Du,Shiyu Huang,Dongyang Li,Haiyang Cheng,Fengyu Zhao
The sustainable synthesis of primary amines from renewable biomass is a key goal of green chemistry. Reductive amination of furfural (FAL), a representative biomass platform molecule, provides a direct route to furfurylamine (FAM), yet noble-metal catalysts remain dominant in this field, limiting large-scale application due to high cost and scarcity. Herein, we report non-noble Ni/HZSM-5 catalysts with tunable SiO 2 /Al 2 O 3 ratios that achieve up to 99% yield of FAM with a high generation rate (10.8 mmol FAM mmol Ni −1 h −1 ) under mild conditions (90 °C, 1 MPa H 2 , 0.8 MPa NH 3 ). Mechanistic studies reveal that the synergistic interface between metallic Ni and Brønsted acid sites facilitates hydrogen activation and spillover, enhances imine adsorption, and stabilizes gem- diamine and is beneficial for its ammonolysis. The catalyst also demonstrates excellent recyclability and broad substrate scope, affording >90% yields of primary amines for the reductive amination of the various aldehydes and ketones. This work provides mechanistic insights into Brønsted acid–metal synergy and establishes a sustainable, cost-effective strategy for the green synthesis of primary amines.
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Journal of Materials Chemistry A
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2026
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IF 9.5
liang wu,Na Wang,Yifeng Xiao,Qiankun Zhang,Guangyao Yang,Zhi He,Xiyue Kang,Yao Jiang,Yuehui He
Direct seawater electrolysis represents a pivotal technology for green hydrogen production. However, achieving efficient and stable cathodic heterostructures capable of maintaining long-term stability under industrial current densities remains a significant challenge. This work reports an in situ constructed Ni-Cr-Fe-Mo heterostructure derived from four transition metal powders, which feature multilevel catalytic heterointerfaces and abundant multifunctional active sites. The heterostructure demonstrates sustained hydrogen evolution for 50 hours at 2 A cm -2 in alkaline and neutral seawater electrolytes, while exhibiting exceptional performance under amperelevel current densities. Density functional theory (DFT) calculations reveal that two distinct active sites at the multiscale Ni-Cr-Fe-Mo heterointerfaces synergistically accelerate the hydrogen evolution reaction (HER) through a relay catalysis mechanism: one site facilitates H 2 O cleavage and the other promotes H 2 synthesis. This cooperative process not only optimizes reaction kinetics but also enhances corrosion resistance, enabling persistent high-efficiency seawater electrolysis. The study provides fundamental insights into the mechanisms driving long-term operational stability and offers a novel paradigm for developing durable heterostructures for industrial-scale seawater hydrogen production.
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Journal of Materials Chemistry A
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2026
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IF 9.5
Qianfeng Zhou,Huijie Li,Shengdong Zhang,Changhu Leng,Chuanya Li,Yongchao Wang,Chenyang Ma,Wanglei Wang,Xiaogang Fu,Lei Zhu,Tengshijie Gao,Cheng Wang,Li-Zhu Wu,Zhi-Jun Li
Ruthenium (Ru) catalysts are highly efficient in the hydrogenolysis of polyolefin waste, converting the waste into valuable alkanes. However, excessive C–C bond cleavage of strongly adsorbed olefin intermediates often leads to low-value byproducts, primarily methane (CH4). In this study, we developed a Ru–Ni bimetallic catalyst supported on silica (RuxNiy/SiO2) that directly modulates olefin intermediate adsorption to suppress CH4 formation during polyolefin hydrogenolysis. By alloying low-electronegativity Ni with high-electronegativity Ru, we shift the Ru d-band center through electron transfer from Ni, weakening the adsorption of olefin intermediates. This modification facilitates hydrogenation and desorption pathways while suppressing excessive C–C bond cleavage. The resulting catalyst achieved complete polyethylene (PE) conversion at 250 °C, with 96.9 wt% liquid product yield and only 2 wt% CH4 production. Gasoline- and diesel-range alkanes (C5–C22) accounted for 77.1 wt% of the products. Additionally, the catalyst demonstrated excellent performance with real-world single-use polyolefin products. This work provides a new approach for controlling intermediate adsorption in polyolefin recycling, offering a promising path to enhance the efficiency and selectivity of plastic recycling technologies.
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ELECTROCHIMICA ACTA
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2015
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IF 4.504
Weiwei Li,Ruizhuo Ouyang,Wangyao Zhang,Shuang Zhou,Yang Yang,Yajun Ji,Yang Yang,Kai Feng,Xiaocai Liang,Mingshu Xiao,Yuqing Miao
Single walled carbon nanotube (SWCNT) sandwiched Ni-Ag hybrid nanoparticle layers were developed as electrocatalyst for glucose (Glu) oxidation . By mixing the carboxylated SWCNTs and Ni/Ag ions, Ni/Ag ions were easily adsorbed on both sides of SWCNTs in good order due to the electrostatic interaction between them, forming the Ni/Ag ion doubly adsorbed SWCNTs. Once the electrode modified with Ni/Ag ion doubly adsorbed SWCNTs was immersed in Ni-Ag solution, the Ni/Ag ion doubly adsorbed SWCNTs were immediately surrounded by a large amount of Ni/Ag ions. As the electrodeposition started, the Ni/Ag ions pre-adsorbed on the walls of SWCNTs were first reduced to very small particles as seeds to induce the further growth of Ni-Ag nanoparticles (NPs) on SWCNTs (seed-induced effect), forming the SWCNTs sandwiched Ni-Ag hybrid nanoparticle layers. Compared with the electrodeposition of Ni-Ag on bare GCE , the proposed Ni-Ag/SWCNTs composite was greatly improved in many properties like the particle size of Ni-Ag NPs, the hydrophilicity , the electron transfer ability and the electrocatalytic activity . For Glu electro-oxidation, Ni-Ag/SWCNTs/GCE demonstrated extraordinary electrocatalytic performance where the good linear current responses were obtained in two Glu concentration ranges of 0-2.5 mM and 0-350 μM with correlation coefficients ( R 2 ) of 0.9935 and 0.9985. A high sensitivity of 2946 μA mM ⿿1 cm ⿿2 was achieved with the proposed Ni-Ag/SWCNTs based sensor. More importantly, three excellent linear relations were also achieved in the ranges of 0-11 μM, 10-90 μM and 170-350 μM with R 2 as high as 0.9999 and the detection limits of 0.094, 0.076 and 0.062 μM, respectively. The new method was successfully applied to Glu detection in blood samples with preferable accuracy and precision.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2022
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IF 6.371
Lianbo Wang,Jun Ren,Yuantao Zhao,Vincent Ji,Huabing Liu,Min Liu,Zemin Wang,Chuanhai Jiang,Zhanyong Wang
In this study, Ni-Ti composite coatings were prepared using electrodeposition . Experimental results and COMSOL computer simulation revealed the effect of the Ti microparticles on the microstructure and properties of the Ni-Ti composite coating. The incorporated Ti microparticle lead to grain refinement, texture elimination which were correlated with the effect of current concentration and heterogeneous nucleation. Domains consisting of inner nano-grains and outer radial columnar grains were located around the Ti microparticles, where the Ti microparticles acted as seeds. This was closely correlated with the time-dependent plating conditions like current density and electric field lines during incorporation process of the Ti microparticles. Besides that, during the incorporation process of Ti microparticles, current density concentration on the “V”-shaped valley between closely neighboring Ti microparticles promote the presence of fine Ni grains, existing between but not belonging to the Ti microparticles. Selective deposition of Ni metal on Ti microparticle surface, local current density concentration and the aggregation of Ti microparticles were observable, contributing to the spatial heterogeneity of the microstructure. Compared with the pure Ni coating, the average hardness of the Ni-Ti composite coating increased from 2.91 ± 0.43 GPa to 3.98 ± 0.46 GPa, leading to the enhanced wear resistance. However, spatial heterogeneity of the hardness distribution was observed due to the heterogeneous microstructure of Ni-Ti composite coating, which confined the improvement of wear resistance.
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危险品化学品经营许可证（带存储）