SURFACE & COATINGS TECHNOLOGY
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2025
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IF 6.1
Jingsi Wang,Shuang Liu,Guibin Lou,Ya Chen,Haozhe Pang,Yachao Song,Syed Mesum Raza Naqvi,Kai Zhou,Zongjun Tian,Muhammad Ali Nasir,Dongsheng Wang,Lida Shen
High infrared emissivity coatings have important engineering value in aerospace and electronic devices. In this study, a new method for preparing high infrared emissivity coatings using magnetic field-assisted jet electrodeposition was prepared. The magnetic field-assisted jet electrodeposition technique can be used to prepare coatings with rough structures, and the infrared emissivity of nickel particle coatings can reach 0.80 at a magnetic field intensity of 100 mT, which is significantly improved compared with the nickel coatings (0.155) prepared by conventional electrodeposition. A nickel-based SiC composite coating with high infrared emissivity was prepared by combining magnetic field-assisted jet electrodeposition with SiC particles. Compared with the nickel particle coating, the infrared emissivity of the nickel-based SiC composite coating is further improved. At a concentration of 6 g/L SiC particles, the infrared emissivity of the nickel-based SiC composite coating reached 0.94. The synergistic effect of magnetic field-assisted jet electrodeposition and SiC particles can realize the nickel coatings into coatings with high infrared emissivity.
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高影响因子
Science China-Chemistry
·
2025
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IF 9.7
Qiu Zhuo,Dai Yiqi,Zhang Runzhi,Xiao Xin,Tong Yuqiao,Yao Lihua,Yan Dongpeng
Cost-effective metal-based electrocatalysts are desirable for industrial water and seawater electrolysis, triggering the hydrogen evolution reaction (HER) with high efficiency. Here, we report the loading of ultralow-content Ru-Os dual-atom onto NiCoP nanoneedles significantly enhancing HER in seawater splitting. The localization of 0.16% Ru and 0.58% Os atoms within NiCoP induces changes in the electronic structure and coordination environment of the Ni active sites. This catalyst achieves low overpotentials (29 and 303 mV in alkaline solution, 68 and 331 mV in alkaline seawater) at 10 and 800 mA/cm 2 , respectively, demonstrating remarkable stability by maintaining performance at 500 mA/cm 2 for 24 h in alkaline and simulated seawater. Experimental and theoretical studies indicate that ultralow content Ru and Os dual atoms are immobilized on the surface of NiCoP/NF through Ru-P and Os-P bonds, leading to electron transfer and changes in the coordination environment. These results enhance the activity of Ni active sits on support, demonstrating superior HER performance in alkaline solution and seawater. Ultralow content Ru and Os dual atoms in NiCoP@Ru-Os/NF play a crucial role in reducing the Gibbs free energy of hydrogen adsorption and lowering the d -band position of the catalyst, thereby accelerating the HER kinetic.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Yuyao Chen,Guoyu Qian,Jijun Lu,Sheng Pang,Yiwei Sun,Hao Wang,Hongbing Peng,Zhi Wang
Cermet is a promising inert anode material to solve the problem of high carbon emission and bearing C-F harmful gas generation of primary aluminum produced from bauxite using molten electrolysis with carbon anode. However, a major challenge for traditional methods is to ensure that the cermet inert anode simultaneously has good conductivity, corrosion resistance , and strength . Herein, a new ultrafast pressureless sintering (UPS) method is developed to greatly improve the conductivity of metal ceramic inert anode materials while ensuring good corrosion resistance and strength. In a departure from conventional practice that metal phase undergoes local enrichment accompanied by irregular formation of ceramic particles at low heating rates, here UPS achieves rapid diffusion and uniform distribution of metal phase at regular ceramic particle interfaces during liquid phase sintering . The new method is applicable to Ni-based cermet and the production of Ni-based cermet inert anode with excellent conductivity in a few tens of seconds has been demonstrated, which is able to improve the quality of cermet inert anode requiring a low energy input. The conductivity of cermet produced by the applied UPS process is 15-fold higher than that of other pressureless sintering processes with low heating rates. These Ni-cermet inert anodes exhibit high corrosion resistance and density with excellent mechanical properties. This rapid sintering technique facilitates the structural design of inert anodes and develops a pathway of new systems with scalable, efficient, and high-quality sintering of composite materials.
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JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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2024
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IF 2.6
Hou Xiangshan,Song Jinxue,Xu Shijun,He Yi,Bai Yang,Sun Yi,Liu Han,Yuan Qing,Chen Quangang,Wei Kaijun
In this work, pulsed electrodeposition was utilized to successfully create Ni–B/ZrPP composite coatings on N80 steel plates. Investigations were conducted into how zirconium phenylphosphonate (ZrPP) nanosheets affected the mechanical characteristics, corrosion resistance, and surface morphology of Ni–B metal coatings. The results show that the surface of Ni–B/ZrPP nanocomposite coating is dense, and the defects of the original Ni–B coating are improved by ZrPP. In particular, with a flatter wear trajectory and a smaller wear volume, the composite coating containing 1.0 g/L of ZrPP had the maximum microhardness (1043 Hv) and an average COF of 0.350. At this point in time, the composite coating had the biggest total impedance (64,500 Ω⋅cm 2 ), the lowest corrosion rate (0.0256 mm/year), the highest corrosion potential (− 0.332 V), the lowest corrosion current density (2.18 µA/cm 2 ), and the best corrosion resistance.
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Science Advances
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2025
·Vol. 11
·期 28
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IF 12.5
Wei Zhao,Xueyi Mei,Yexin Zhang,Zhenghui Zhang,Kai Chen,Weiping Xie,Ying Xin,Zhaoliang Zhang,Jian Zhang
Dry reforming of methane (DRM) offers an attractive solution for the high-value utilization of two primary greenhouse gasses, methane and carbon dioxide, but its industrial applications are hindered by the net carbon dioxide–positive emissions resulting from substantial energy consumption. Here, we developed an electrified technology by passing electric current through a conductive catalyst constituting nickel and lanthanum(III) oxide cosupported on activated carbons, reaching thermodynamic equilibrium conversions and sustaining for at least 120 hours. Notably, the energy efficiency (2.976 millimoles per kilojoule) exceeds all the previously reported values, enabling net carbon dioxide–negative emissions powered by common sustainable electricity. An electrically driven release of lattice oxygen bridges the decomposition of the lanthanum oxycarbonate intermediate generated from carbon dioxide activation and the reduction of the resultant nickel oxide species by deposited carbon from methane dissociation, thus inhibiting excessive nickel oxidation and lanthanum(III) oxide carbonatation. The electrified approach would make DRM a true pathway mitigating overall carbon footprint and combating global warming.
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PubMed
高影响因子
CERAMICS INTERNATIONAL
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2025
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IF 5.6
Xiu Li,Zhanheng Yan,Yanglin Shen,Wanjin Liu,Jun Ding
Oxides with the ABO 3 chemical formula play a crucial role in studying photostriction in inorganic materials. In this study, the photostrictive behavior of ilmenite-type ceramics ATiO 3 (where A = Mg, Fe, Co, Ni, and Mn) was investigated under visible light irradiation. Among the ceramics investigated, CoTiO 3 showed the highest photostriction of approximately 0.1 % under 405, 520, and 650 nm light irradiation. The photostrictive response decreased successively in FeTiO 3 , MnTiO 3 , NiTiO 3 , and MgTiO 3 . Temperature and thermal expansion tests revealed that the deformation of the ceramics caused by the photothermal effect accounted for approximately half of their photostriction. Raman and charge transfer analyses indicated that the photostriction of the ceramics depended significantly on their crystal structure. Thus, the ceramics exhibited distinct photostrictive performances. This study highlights the connection between the crystal structure and photostrictive performance of ilmenite-type ceramics, providing valuable insights into the underlying mechanism of photostriction in inorganic materials.
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ChemCatChem
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2025
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IF 3.9
Hengyu Zhao,Jing Zhao,Xue Li,Bate Nasen,Yang Wu,Xinlong Wang,Jinxiong Wu,Yaya Wang
The catalytic reduction of 4-nitrophenol (4-NP), a persistent environmental pollutant faces dual challenges reliance on noble metals and inefficient utilization of hydrogen radicals (H*). Meanwhile, nickel-containing sludge generated by the electroplating industry, classified as hazardous waste has long posed significant disposal conundrums. Herein, we developed a noble metal-free pyroxene-type CaNi(Si 2 O 6 ) catalyst, synthesized from electroplating sludge, that simultaneously addresses these challenges through dynamically reconstructed Ni–O–Ca interface with oxygen vacancies and interfacial electron transfer channels. Ni@Ca-195/20 establishes a self-sustaining catalytic system, achieving a remarkable conversion of 96.8% with 0.1 mM NaBH 4 and 0.05 mg catalyst, while maintaining stability over 31 cycles in low concentration regimes. Integrated characterization combined with catalytic performance evaluation reveals an interfacial electron transfer mechanism: the engineered interface enables in situ reduction of Ni 2+ generates metallic electron-deficient Ni δ+ species, enhancing 4-NP − and BH 4 − adsorption through dual-site coordination. Oxygen vacancies accelerate BH 4 − hydrolysis, while electron transfer channels sustain H* flux via Ca 2+ modulated charge equilibration. This work establishes a waste-to-functionality paradigm for designing defect-engineered catalysts while advancing sustainable remediation of nitroaromatic pollutants. Graphical The Ni-plating sludge was converted into a Ni@Ca-195/20 catalyst with abundant oxygen vacancies and Ni–O–Ca heterointerfaces via the solvothermal method, which was used to efficiently catalyze the hydrogenation reduction of 4-nitrophenol.
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JOURNAL OF MATERIALS SCIENCE
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2025
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IF 3.9
Zhang YaXi,Liang Jin,Zhang Li,Zou FengYuan,Li YunFeng,Zeng ZiQuan,Lei Tian,Yang Guang
As a clean energy carrier, hydrogen necessitates efficient production via cost-effective, highly active non-noble metal electrocatalysts. Herein, we demonstrate a Zn-doped CoP heterostructure catalyst anchored on MXene-engineered nickel foam (MXene@ZnCoP/NF) through synergistic substrate engineering and compositional modulation. This design achieves exceptional alkaline hydrogen evolution reaction (HER) activity and superior overall water splitting efficiency. In 1.0 M KOH electrolyte, the MXene@ZnCoP/NF heterostructure exhibits exceptional HER performance, achieving a low overpotential of 15 mV at 10 mA cm −2 , 64 mV at 50 mA cm −2 , 214 mV at 500 mA cm −2 , and a Tafel slope of 86.0 mV dec −1 , indicative of rapid reaction kinetics. Furthermore, the catalyst demonstrates industrial-grade durability, maintaining stable operation for 65 h at 500 mA cm −2 without significant degradation. When integrated into a full-cell electrolyzer with RuO 2 /NF as the anode (RuO 2 /NF ||MXene@ZnCoP/NF), the system requires only 1.53 V to deliver a current density of 10 mA cm −2 , surpassing the performance of the noble metal system Pt-C/NF||RuO 2 /NF (1.61 V). This highlights its potential as a cost-effective alternative to noble metal-based electrocatalysts for scalable hydrogen production. The enhanced catalytic performance can be primarily attributed to the synergistic interplay of three key factors: the superior conductivity provided by MXene-engineered NF substrates, the Zn doping-induced crystalline-to-amorphous phase reconstruction, and the morphological transformation from micrometer-scale architectures to nanoscale structures. This study proposes an innovative “substrate–structure–composition” synergistic strategy that establishes a new paradigm for designing highly efficient non-noble metal HER electrocatalysts, thereby propelling the scalable industrial implementation of electrocatalytic water splitting for hydrogen production. Graphical abstract
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Materials Today
·
2022
·
IF 26.943
Yun Liu,Qi Wang,Lai Chen,Zhiming Xiao,Xinming Fan,Shuailing Ma,Lei Ming,Akhil Tayal,Bao Zhang,Feng Wu,Xing Ou
Nickel-rich layered LiNi x Co y Mn 1- x - y O 2 (NCM, x ≥ 0.83) is considered as a promising cathode material for lithium-ion batteries (LIBs), owing to its satisfying specific energy. However, the undesired phase transformation from layered into rock-salt at the NCM surface will easily induce Li concentration gradient during cycling, which hinders the Li-ions diffusion and leads to the gradual accumulation of inner stress with the appearance of microcracks. Herein, we propose a surficial engineering strategy to promote the Li-ions transmission for single-crystalline LiNi 0.83 Co 0.11 Mn 0.06 O 2 (SCNCM) via Li 1.3 In 0.3 Ti 1.7 (PO 4 ) 3 (LITP) modification. It is noted that, as the fast Li-ion conductor, LITP can accelerate the Li-ions diffusion and alleviate the electrode–electrolyte side reaction simultaneously. More importantly, LITP can serve as the Li-ions regulator, ensuring the homogeneous distribution of Li-ions and minimizing the concentration difference at SCNCM surface. It can relieve the stress induced by the inconsistent Li-ions dispersion, which effectively decreases the degree of structural disordering and lattice mismatch at surface, eventually maintaining the high structure integrity during long-term cycling. As anticipated, even under the harsh testing conditions, the LITP modified SCNCM still can achieve a satisfied reversible capacity of 196.4 mAh g −1 under potential range of 2.75–4.6 V after 200 cycles at 25 °C in coin-type half-cells. Furthermore, it provides an extraordinary capacity retention of 88% in 2.75–4.3 V after 400 cycles at high temperature of 45 °C in pouch-type full-battery.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2025
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IF 21.1
Wanli Liang,Zixuan Dan,Xiyu Gong,Jinchang Xu,Hongjuan Wang,Yonghai Cao,Hao Yu,Yanshuo Jin,Hao-Fan Wang
The development of hydrogen energy conversion technology offers a solution to the global energy crisis. Hydrogen evolution reaction (HER) and hydrogen oxidation reaction (HOR) are essential for hydrogen production and utilization. Ni-based catalysts are promising alternatives to Pt-group catalysts under alkaline conditions. However, pure Ni exhibits low activity due to H 2 O dissociation/formation limitations in the rate-determining Volmer step. To overcome this bottleneck, we present a heterostructure-induced electron modulation strategy to regulate the spatial proximity of key intermediates within the inner Helmholtz plane, thereby facilitating Volmer step kinetics. Electron depletion at the Ni site shifts its d -band center upward, enhancing the adsorption of *H, *OH, and *H 2 O. This electronic tuning brings *H and *OH closer and elongates the H–OH bonds in *H 2 O, effectively reducing the Volmer barrier, as confirmed by density functional theory (DFT) and in-situ Raman spectroscopy. We demonstrate this concept using a representative heterostructure of nickel and tungsten nitride on nickel foam (Ni/WN@NF), which exhibits excellent electrocatalytic activity, requiring only 20 mV overpotential to achieve 10 mA cm −2 for HER and reaching an exchange current density of 3.99 mA cm −2 for HOR. This work offers a generalizable interfacial approach for modulating local chemical environments in alkaline hydrogen electrocatalysis.
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TOPICS IN CATALYSIS
·
2025
·
IF 3
Wang Shuai,Xue Tairui,Hai Luhang,Song Hua
The development of highly active and stable non-precious catalysts for selective hydrogenation of phenol to cyclohexanol is significant but challenging. Here, CeO 2 nanorod supported Ni nanoparticles with oxygen vacancy structural defects were constructed via direct pyrolysis of metal organic framework (MOFs) for catalytic hydrogenation of phenol. Results showed pyrolysis temperature and time had an obvious effect on the catalytic performance. Under the reaction conditions of 160 °C, 2 MPa, 2 h, Ni@C/CeO 2 -1 h − 400 °C catalyst prepared at temperature of 400 °C and time of 1 h exhibited the best catalytic performance with 94.7% phenol conversion and 100% cyclohexanol selectivity due to the highly dispersed Ni nanoparticles. Further increase in pyrolysis temperature or extension of pyrolysis time both resulted in the decrease of the catalytic performance. In addition, results also found the Ni@C/CeO 2 -1 h − 400 °C catalyst with a rod-like structure displayed higher phenol conversion than purchase CeO 2 supported Ni (Ni@C/CeO 2 -pur) catalyst. The enhanced catalytic performance of Ni@C/CeO 2 -1 h − 400 °C catalyst is ascribed to the higher concentration of oxygen vacancies. This work provides the design and synthesis of highly efficient non-noble catalysts for the production of value-add chemicals from biomass.
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Energy Storage Materials
·
2024
·
IF 18.9
Yiye Guo,Mouren Miao,Yun-Xiao Wang,Chunxing Yan,Jin Liu,Yuliang Cao,Hanxi Yang,Xinping Ai,Fu-Sheng Ke
A full cell via pairing high-capacity silicon anode with high-voltage NMC cathode (Li(Ni 0.83 Co 0.12 Mn 0.05 )O 2 ) holds great promise as a high-energy battery system for practical applications. Nevertheless, this potential has been hindered by challenges in terms of the pulverization of Si particles, unstable electrode/electrolyte interface, and severe dissolution of transition metals at high voltage. Herein, we present a novel high-voltage and weakly solvating electrolyte, consisted of lithium bis(fluorosulfonyl)imide in mixed solvent of diethyl carbonate and 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether, which effectively enables the remarkable cycling stability of both micron silicon anode (a high reversible capacity of 1667 mAh g −1 after 200 cycles) and Ni-rich cathode (a notable capacity retention of 83% after 140 cycles at an ultrahigh cut-off voltage of 4.9 V). It is revealed that the tailored electrolyte leads to the formation of a robust and reinforced concrete-like solid electrolyte interphase, characterized by a distinctive vertical side-by-side columnar structure comprised of LiF and sulfide on the micro-silicon anode. Meanwhile, a uniform and thin cathode-electrolyte interphase is observed on the surface of NMC particles when cycled in the designed electrolyte. Furthermore, coupled with high-capacity micro-Si and high-voltage NMC, this designed electrolyte endows a remarkable full-cell with high energy density (475 Wh kg −1 ), excellent rate capability, and high-voltage cycling stability. This research contributes a pioneering approach to enabling the utilization of micron-sized silicon anodes and Ni-rich cathodes for next-generation high-energy lithium-ion batteries.
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