INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
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IF 8.3
Liandong Li,Ziqi Qiao,Bing Lin,Hailong Zhang,Yingying Wang,Zhe Sun,Yiping Hu,Denghao Ouyang,Shiyu Li,Hangzhou Wang,Junlei Tang,Caineng Zou
Electrolysis of neutral saline wastewater/seawater enables sustainable hydrogen production but faces sluggish hydrogen evolution reaction (HER) kinetics and poor durability in chloride-rich media. Herein, a novel Cu 2 S/Amorphous/Cu–Ni–Mo heterostructure electrocatalyst, prepared by electrodeposition and atomic layer deposition (ALD), was introduced to address these challenges. The electrode was synthesized by electrodepositing a Cu–Ni–Mo coating onto a stainless steel substrate, followed by in-situ sulfurization using ALD technology to form an amorphous layer, yielding a heterostructure with optimized interfacial properties. This heterostructure electrode exhibited an overpotential of 63.29 mV at −10 mA cm −2 and maintained stable operation at −100 mA cm −2 for over 180 h in 0.5 mol/L NaCl +1 mol/L phosphate buffered saline (PBS). A 10 cm × 10 cm electrode was successfully fabricated using this scalable method, which exhibited uniform morphology and stability exceeding 240 h. This work advances HER performance and scalability in neutral environments, facilitating industrial-scale electrocatalytic hydrogen production.
研究领域:
电化学
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材料科学
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纳米技术
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能量转换
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催化
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环境工程
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DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
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IF 3.9
Jinna Liu,Yi Wang,Yang Li,Peiliang Sun,Zhichao Sun,Ying-Ya Liu,Chong Peng
Encapsulating the USY zeolite within a mesoporous SBA-15 shell is a promising strategy to construct hierarchical catalysts with regulated acidity. However, the acidic conditions required for SBA-15 synthesis pose a stability challenge to the acid-sensitive USY core. In this work, we first systematically investigated the physicochemical evolution of USY under simulated SBA-15 synthesis conditions by varying the acid concentration, temperature, and treatment time. Through XRD, N2 physisorption, NH3-TPD, and Py-FTIR analysis, the optimal conditions for USY to retain its framework integrity and Brønsted acidity were determined to be ≤1.0 M HCl and treatment time ≤24 h. This acid-tailored optimization is essential for the subsequent fabrication of the core–shell structure. Guided by these findings, the Ni–Mo/USY@SBA-15 core–shell catalyst is successfully prepared and evaluated in naphthalene hydrocracking, achieving 97.8% conversion and 51.6% BTX selectivity, outperforming conventional Ni–Mo/USY (92.6% conversion and 26.0% BTX selectivity). XPS analysis provides direct evidence of the spatially regulated metal-acid distribution and enhanced electron density on active sites. The performance enhancement is attributed to the hierarchical pore structure and the spatially regulated metal-acid distribution, which together enhance mass transfer, optimize acid site accessibility, and suppress overcracking. This study provides an acid-tolerance-guided synthesis strategy for designing high-performance core–shell zeolite catalysts.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
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IF 9.9
Peng Zuo,Xujing Ji,Jiawei Lu,Yating Chai,Weizhou Jiao,Ruixin Wang
Developing the robust non-precious metal bifunctional electrocatalyst is highly imperative for the hydrogen evolution from overall water splitting. Herein, a Ni foam (NF)-supported ternary Ni/Mo bimetallic complex (Ni/Mo-TEC@NF), hierarchically constructed by coupling the in-situ formed MoNi 4 alloys and Ni 2 Mo 3 O 8 with Ni 3 Mo 3 C on NF, has been developed through a facile method involving the in-situ hydrothermal growth of the Ni-Mo oxides/polydopamine (NiMoO x /PDA) complex on NF and a subsequent annealing in a reduction atmosphere. Synchronously, N and P atoms are co-doped into Ni/Mo-TEC during the annealing procedure using phosphomolybdic acid and PDA raw materials as P and N sources, respectively. The resultant N, P-Ni/Mo-TEC@NF shows outstanding electrocatalytic activities and tremendous stability for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), due to the multiple heterojunction effect-promoted electron transfer , the large number of exposed active sites, and the modulated electronic structure by the N and P co-doping. It only needs a low overpotential of 22 mV to afford the current density of 10 mA·cm −2 for HER in alkaline electrolyte . More importantly, as the anode and cathode, it requires only 1.59 and 1.65 V to achieve 50 and 100 mA·cm −2 for overall water splitting, respectively, comparable to the benchmark Pt/C@NF//RuO 2 @NF couple. This work could spur the search for economical and efficient electrodes by in situ constructing multiple bimetallic components on 3D conductive substrates for practical hydrogen generation.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
RSC Advances
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2025
·Vol. 15
·期 56
·48487-48497
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IF 4.6
Yong Liu,Bohon Chen,Hanbin Nie,Shuanglin Gui,Jianping Deng
Electrolytic hydrogen production from water is a cost-effective renewable energy technology, but its development is severely constrained by high energy consumption, precious metal catalysts, and low-value products of anode. Given that inexpensive glycerol exhibits a significantly lower redox potential than water, this study developed a 3D coral-like nickel–molybdenum sulfur bifunctional nanocatalyst (Ni–Mo–S/NF) based on nickel foam, which served as both the anode and cathode in an alkaline glycerol electrolyte, enabling the simultaneous production of high-value formate at the anode and high-purity hydrogen at the cathode. Notably, in a two-electrode system, the alkaline glycerol electrolyzer required only 1.37 V to achieve a current density of 10 mA cm−2, which was 280 mV lower than that of an alkaline aqueous solution system, indicating an about 17% reduction in energy consumption compared to conventional water electrolysis. Meanwhile, this system reached a faradaic efficiency of 95.0% for formate production and 99.6% for hydrogen evolution. Benefiting from the outstanding performance of the noble-metal-free Ni–Mo–S/NF catalyst, the proposed technology for simultaneous formate and hydrogen production via glycerol electrooxidation offers a novel pathway for the green production of high-value chemicals and energy-saving hydrogen generation.
研究领域:
电化学
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可再生能源
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催化
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材料科学
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可持续化学
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产品关联
DOI
PubMed
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
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2017
·Vol. 23
·期 19
·4644-4650
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IF 5.317
Lianshan Sun,Chunli Wang,Qujiang Sun,Yong Cheng,Limin Wang
With the aim of finding efficient non-noble metal catalysts for water splitting, hierarchical Ni-Mo-polydopamine microflowers (Ni-Mo 2 C/C MF) were synthesized through a facile aqueous-phase reaction at room temperature. NiMoO 4 nanowires were utilized as both Ni and Mo source; they can complex with dopamine to form a hierarchical structure and affect the scale of the final product. The energy dispersive spectroscopy (EDS) measurement of Ni-Mo 2 C/C microflowers (MF) shows a high content of Mo 2 C and Ni (>90 wt %). For the hydrogen evolution reaction (HER), the Ni-Mo 2 C/C MF displays a low overpotential of 99 mV at a current density of −10 mA cm −2 and a small Tafel slope of 73 mV dec −1 in 1.0 m KOH. By comparison with Mo 2 C/C microspheres (MS), the nanosized Ni-doped particles offer more active sites and enhance the kinetic performance. This facile synthesis strategy is also suitable for preparing other metal-Mo 2 C/C composites that can be used in the fields of catalysis and energy conversion. Graphical In flower : A flowerlike Ni-Mo-dopamine complex is first synthesized by a facile method under room temperature. Ni doping in situ is realized by utilizing NiMoO 4 nanowire as both template and precursor. An enlarged surface area and nanosized Ni doping greatly enhance the electrocatalytic properties of Ni-Mo 2 C/C due to more active sites.
研究领域:
材料科学
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电化学
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能量转换
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纳米材料
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催化
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DOI
高影响因子
Nano Research
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2020
·Vol. 13
·期 12
·3321-3329
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IF 8.183
Xie Heping,Lan Cheng,Chen Bin,Wang Fuhuan,Liu Tao
The development of noble-metal-free electrocatalysts for water splitting is indispensable for the efficient production of hydrogen fuel. Herein, a Co-doped Ni-Mo phosphide nanorod arrays fabricated on porous Ni foam was shown to be an efficient binder-free electrocatalyst for water splitting. This catalyst featured exceptional activity, exhibiting an overpotential of 29 mV at a current density of 10 mA·cm −2 for the hydrogen evolution reaction, whereas the corresponding precatalyst exhibited an overpotential of 314 mV at a current density of 50 mA·cm −2 for the oxygen evolution reaction. The achieved electrocatalytic performance provided access to a simple water splitting system, affording a current density of 10 mA·cm −2 at 1.47 V in 1 M KOH electrolyte. Density functional theory results indicated that Co doping and phosphorization were responsible for the high electrocatalytic performance. Thus, this work paves the way for the development of novel noble-metal-free electrocatalysts for practical H 2 production via water splitting.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
FUEL
·
2021
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IF 6.609
Mingqiang Chen,Jingjing Shi,Yishuang Wang,Zhiyuan Tang,Zhonglian Yang,Jun Wang,Han Zhang
Highly efficient conversion of lignin to value-added liquid fuel or phenol monomers has attracted widespread attentions. The W-Ni-Mo/SEP trimetallic catalyst was firstly prepared and used for lignin catalytic depolymerization (LCD) under supercritical ethanol, which significantly ameliorated the problem of complex product compositions and poor cycle-stability in Mo/SEP. Characterization results confirmed that doping W and Ni metals led to the transformation of metallic oxide phases, and then increased oxygen vacancies (O V ), enhanced the metal-support interaction, and lowered acid site content. The experimental results revealed that W-Ni-Mo/SEP yielded 39.56% of lignin oil (LO) with 32.37 MJ/kg of HHV at 280 °C for 4 h. The selectivity to guaiacol and ethoxyphenol monomer was remarkably increased as compare with Mo/SEP. Furthermore, the W-Ni-Mo/SEP catalyst exhibited unique cycle stability and produced LO even increased to 41.41% after five LCD cycles. The possible reaction paths of lignin converted to guaiacol and ethoxyphenol over W-Ni-Mo/SEP were proposed. Brønsted-acid site promoted the self-activation of ethanol to form aliphatic products. The higher O V preferentially adsorbed phenol-intermediates containing dual oxygens and activated direct dealkylation to obtain guaiacol. The lower Lewis-acid site promoted the demethylation of methoxy in side-chains of phenol-intermediates and then interacted with free ethyl groups to form ethoxyphenol.
研究领域:
化学工程
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可再生能源
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催化材料
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产品关联
DOI
高影响因子
Molecular Catalysis
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2023
·
IF 4.6
Gang Yuan,Ren Zhang,Yishuang Wang,Haosheng Xin,Jun Wang,Mingqiang Chen
Solar power drived water splitting for hydrogen production is pivotal for sustainable energy conversion. Yet, it is challenging to develop earth abundant, high active, and durable electrodes to catalyzing hydrogen evolution reaction (HER) under fluctuating solar electricity. Herein we report self-supprted NiMo phosphate (NiMo-Pi) electrodes, where amorphous NiMo-Pi with nanosheets-like structure grow directly on conductive Ni foam by a facile one-step hydrothermal treatment. The electronic structures of Ni and Mo are tuned by O and P in NiMo-Pi electrodes, resulting the down-shift of their d -band centers. NiMo-Pi electrodes offer high activity and stability for HER, delivering -100 and -500 mA cm −2 mg cat −1 with overpotentials of 343 and 461 mV, repectively. They also sustain long-term electrolysis at a constant industrial-level current density of 500 mA cm −2 and at dynamic current densities ranging from -10 to -1 000 mA cm −2 . Their HER activity become higher after stability tests, benefitting from in-situ surface reconstruction. This reconstruction makes the surface rich in active higher-lying d -band centers. This work suggests that tuning the electronic structure of electrodes is an efficient way to design efficient and stable electrodes for HER under harsh conditions.
研究领域:
材料科学
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能源化学
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产品关联
DOI
高影响因子
Green Energy & Environment
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2026
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IF 16.7
Zihang Wang,Yujing Wu,Jinliang Yan,Zhiyu Li,Hui Zhou,Peng Fu
Biodiesel, a renewable and carbon-neutral fuel, offers a sustainable alternative to petroleum diesel. However, its widespread application is hindered by the need for energy-intensive deoxygenation processes that often degrade the carbon backbone of fatty acid esters. This study presents a non-noble NiMo/HBeta bifunctional catalyst for the complete conversion of methyl stearate under mild conditions (190 °C), achieving 92.53% selectivity toward C18 alkanes and a high HDO/DCO (hydrodeoxygenation/(decarboxylation + decarbonylation)) ratio of 12.38, outperforming previously reported catalytic systems. Mechanistic insight reveals that atomically dispersed Ni δ+ –MoO x sites enable directed electron transfer from Ni to Mo. This creates a synergistic interface where Ni activates H 2 while Mo polarizes the C=O bond, lowering the barrier of the HDO pathway to 1.76 eV and kinetically favoring carbon-retentive deoxygenation. Concurrently, Mo reshapes the acid properties by suppressing strong Brønsted sites, establishing a Lewis-acid-dominated microenvironment that selectively cleaves C–O bonds while inhibiting C–C scission. This work elucidates how interfacial electronic synergy and tailored acidity cooperatively steer reaction pathways, offering a design principle for efficient biomass upgrading under mild conditions.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
·
IF 9.2
Hailong Fang,Shangzhen Feng,Jie Yang,Huanjin Jiang,Wenhao Wang,Rijie Wang,Jixiang Chen
MgO–Al 2 O 3 supported Ni and Ni–Mo bimetallic catalysts (referred as Ni/MgAl and Ni x Mo/MgAl with the Ni/Mo atomic ratio of x, respectively) were prepared by the co-precipitation method and tested for the dry reforming of methane (DRM) on an atmospheric quartz fixed-bed. The XRD, XPS, XAFS and magnetic measurement results demonstrate that the Ni–Mo alloy forms in Ni x Mo/MgAl, which inhibits the sintering of metal particles and enhances the degree of coordination unsaturation of metal sites, and subsequently Ni x Mo/MgAl expose more metal sites than Ni/MgAl. The CO 2 -TPD and TPSR reveals than the presence of Mo promotes the adsorption and dissociation of CO 2 , beneficial to DRM and suppressing carbon deposition. Particularly, compared to that on metallic Ni, the graphitic carbon is remarkably suppressed on Ni–Mo alloy own to the charge transfer from Ni to Mo and the isolated Ni ones by the Mo ones. During DRM, Ni x Mo/MgAl are more active than Ni/MgAl, especially Ni 5 Mo/MgAl, which gives the CH 4 and CO 2 conversions of 82.3% and 87.4% at 800 °C, respectively. Also, Ni 5 Mo/MgAl is more stable than Ni/MgAl, and Ni–Mo alloy structure maintains during the reaction and after the regeneration. In addition, the DRM mechanism dominatingly via the HCOO∗ intermediate species is proposed based on in situ DRIFTS and TPSR.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zifan Wu,Lu Chen,Yacong Deng,Fengyu Tian,Guangzheng Sun,Yuting Qiu,Yichuan Li,Yuan Pan,Bin Liu,Bin Dong,Yongming Chai
Lignin-derived phenols, with their high energy density and rich aromatic structure, are potentially high-quality feedstocks for the production of aviation fuel-range cycloalkanes. Herein, we fabricated a Ni Mo alloy catalyst anchored on graphitic carbon nitride (g-C 3 N 4 ) coated γ-Al 2 O 3 (10Ni-5Mo/CN@γ-Al 2 O 3 ), which could completely hydrodeoxygenate various lignin-derived phenols into cycloalkanes under mild conditions. 10Ni-5Mo/CN@γ-Al 2 O 3 significantly catalyzed the hydrodeoxygenation of lignin oil at 240 °C under 3 MPa H 2 for 8 h, achieving a deoxygenation degree of 96.5 % and a high propylcyclohexane selectivity (41.8 %), and the resulting products met the requirements for aviation fuels. The study results showed that electron transfer within Ni Mo alloys and the strong interaction between g-C 3 N 4 and surface anchored Ni Mo alloys in 10Ni-5Mo/CN@γ-Al 2 O 3 facilitated the dissociation of H 2 into active hydrogen to hydrogenate the aromatic rings. Meanwhile, the formation of oxygen vacancies enhanced the adsorption and activation ability of the catalyst for oxygen-containing substrates, which was beneficial for the demethoxylation and dehydroxylation reactions. This work provides a new strategy for constructing supported non-noble metal catalysts for the hydrodeoxygenation of lignin oil into aviation fuels.
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Zhangqiao Zhou,Meiqi Wen,Qi Li,Ruilin Zhou,Xian Wang
Coatings play a crucial role in minimizing eddy current loss in soft magnetic composites (SMCs). The powder atomic layer deposition (PALD) technique was utilized to coat Fe–Ni–Mo soft magnetic powder in this study. The Al 2 O 3 coating fabricated via PALD enhanced corrosion resistance and reduced core loss in SMCs. Additional deposition cycles increased the resistivity of the Fe–Ni–Mo powder and the corrosion resistance of the Fe–Ni–Mo SMCs, indicating that the density and integrity of the amorphous Al 2 O 3 coating were enhanced. Thinner coatings (20 cycles) exhibited anodic passivation in corrosion, which was attributed to insufficient density. Nevertheless, an excessively thick coating (100 cycles) resulted in a decrease in effective permeability and an increase in hysteresis loss. The fabricated Fe–Ni–Mo SMCs (50 cycles) demonstrated a core loss of 603.1 mW/cm 3 at 100 kHz/100 mT, coupled with an effective permeability of 108.5 and a Q value of 97.8 at 100 kHz.
研究领域:
材料科学
·
物理学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）