International Journal of Minerals Metallurgy and Materials
·
2024
·Vol. 31
·期 11
·2508-2517
·
IF 5.6
Zhang Yahong,Zhang Yi,Liu Huimin,Li Dan,Wang Yibo,Xu Chunchao,Tian Yuping,Meng Hongjie
Facing the complex variable high-temperature environment, electromagnetic wave (EMW) absorbing materials maintaining high stability and satisfying absorbing properties is essential. This study focused on the synthesis and EMW absorbing performance evaluation of TiN/Fe 2 N/C composite materials, which were prepared using electrostatic spinning followed by a high-temperature nitridation process. The TiN/Fe 2 N/C fibers constructed a well-developed conductive network that generates considerable conduction loss. The heterogeneous interfaces between different components generated a significant level of interfacial polarization. Thanks to the synergistic effect of stable dielectric loss and optimized impedance matching, the TiN/Fe 2 N/C composite materials demonstrated excellent and stable absorption performance across a wide temperature range (293–453 K). Moreover, TiN/Fe 2 N/C-15 achieved a minimum reflection loss (RL) of −48.01 dB and an effective absorption bandwidth (EAB) of 3.64 GHz at 2.1 mm and 373 K. This work provides new insights into the development of high-efficiency and stabile EMW absorbing materials under complex variable high-temperature conditions.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Chun Ouyan,Xinlong Zhang,Mingfang Wu,Damao Xun,Pingping Gao
Ni-P coatings including TiN nanoparticles are prepared by electroless plating on Ti plate, which is used as bipolar plates of proton exchange membrane fuel cells (PEMFCs). Scanning electronic microscope (SEM) and X-ray diffraction (XRD) are used to characterize the surface morphology and phases of the coatings, respectively. Corrosion resistance of Ni-P and Ni-P/TiN coatings are measured in the simulated solution of PEMFCs. The interfacial contact resistances (ICR) between carbon paper and bipolar plates are conducted by applied different forces. Potentiostatic polarization tests are prepared at different voltage by bubbling air and H2 at 70 °C, respectively. It is indicated that TiN particles as a core enclosed by Ni-P are entrapped into the coating by SEM images. Comparing to Ni-P coatings, the Ni-P/TiN coating shows better behaviors of corrosion resistance and low ICR. The good corrosion resistance is attributed to the formation of coating and the compact surface morphology. Hence, Ti metal with electroless plating Ni-P/TiN coating is a potential candidate for applying in the bipolar plates of PEMFCs
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Chuntian Tan,Feihong Wang,Kai Lv,Yangyang Shi,Binbin Dong,Luyuan Hao,Liangjun Yin,Xin Xu,Yuxi Xian,Simeon Agathopoulos
Developing a highly efficient, cost-effective, and stable bifunctional electrode for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is still a major challenge. This work reports on a novel method for fabricating TiN ceramic membrane supported nitrogen-incorporating NiCo 2 nanowires (NiCo 2 -N/TiN) as a bifunctional electrode. Owing to its unique structure, the ample reaction sites available, and the enhanced mass/charge transport ability, the NiCo 2 -N/TiN electrode exhibits efficient catalytic performance both in HER and OER, with overpotentials of 131 mV at 20 mA·cm −2 for HER and 330 mV at 20 mA·cm −2 for OER, together with excellent stability in alkaline solution. The NiCo 2 -N/TiN electrode only requires a cell voltage of 1.71 V to drive the current density of 20 mA·cm −2 for overall water splitting, which exhibits excellent stability for more than 100000 s. Accordingly, the produced ceramic membrane electrode has a great potential for application in industrial hydrogen production.
研究领域:
材料科学
·
电化学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
·
2016
·Vol. 67
·期 10
·1034-1041
·
IF 1.45
L.T. Shi,J. Hu,L. Fang,F. Wu,X. L. Liao,F. M. Meng
Ternary Ni-Co-P/TiN (20 nm) nanocomposite coatings with Co content in the range of 0–23 wt% were successfully co-deposited on Al alloys by electroless plating. The morphology, composition, microstructure, micro-hardness, wear behavior, and corrosion properties of the coatings were tested using SEM, EDS, XRD, Vickers hardness, ball-on-disc wear tester, and electrochemical workstation, respectively. The effect of Co content on the tribological and corrosion properties of Ni-Co-P/TiN coatings was studied. It is found that all the coatings have a compact and rough granular structure with sub-micro globules non-uniformly distributed on the surface. The grain size and the content of Ni and P decrease, but the micro-hardness, adhesion force, friction coefficient, and corrosion resistance correspondingly enhance with the increase of Co content in Ni-Co-P/TiN coatings. The improved corrosion resistance of Ni-Co-P/TiN coating is due to the passivation behavior and small grain caused by the introduction of Co. Based on the excellent properties on the wear and corrosion resistance, ternary Ni-Co23-P/TiN coating with high Co content, may be applied as an optimum protective coating for Al alloys.
研究领域:
材料科学
·
电化学
·
表面工程
✓ 已验证
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2022
·Vol. 169
·期 8
·087512
·
IF 4.386
Chensheng Wang,Huan Jing,Weifeng Li,Yumei Long
Regulating the heterostructure of electrode materials has a great influence on electron migration and subsequent electrochemical reactions, which play a critical role in the sensing process. Herein, a facile method has been demonstrated to synthesize TiN/graphitic carbon (TiN/gC) nanocomposites by the in situ growth of TiN nanoparticles on C nanosheets. The formation of TiN/gC heterojunctions was evidenced by X-ray diffraction (XRD), Raman microscopy and transmission electron microscopy (TEM). This heterostructure can effectively facilitate electron transfer and increase the electrochemically active area, which improves the electrocatalytic performance. Interestingly, the TiN/gC-modified glassy carbon electrode (TiN-gC/GCE) exhibited excellent electrocatalytic activity toward ofloxacin (OFLX) redox. With the change in the OFLX concentration, the electrochemical response of the sensor also changes. By using a differential pulse voltammetry (DPV) technique, the designed sensor showed a wide detection range: the DPV response was linearly dependent on the concentrations in the range of 0.05 – 1.0 and 1.0 – 100 μM. Moreover, TiN-gC/GCE demonstrated outstanding analytical performances in the quantitative OFLX assay, such as a high sensitivity of 2876 μA·mM−1·cm–2, low detection limit of 0.016 μM, good selectivity and stability. The proposed method was successfully applied for OFLX detection in eye drops and environmental water with satisfactory results.
研究领域:
分析化学
·
材料科学
·
电化学传感器
✓ 已验证
DOI
高影响因子
Catalysts
·
2023
·Vol. 13
·期 2
·291
·
IF 3.9
Huancong Shi,Xulei Yao,Shijian Lu,Yuanhui Zuo,Tao Zheng,Liangquan Jia
Sulfamethoxazole is a widely—used antibiotic with high water solubility and low biodegradability, which was considered a refractory environmental pollutant. Hence, a series of functionalized hybrids uniting Cu3P with TiN were prepared. The Cu3P/TiN—x composites remarkably removed the sulfamethoxazole in solution compared with Cu3P and TiN alone. All the as—prepared Cu3P/TiN—x hybrids integrated the advantages of strong adsorption and photocatalysis and achieved removal rates above 70% of sulfamethoxazole. Among the composites, the Cu3P/TiN—2 with a 1:1 molar ratio of Cu: Ti reached a 90% removal rate under dark adsorption for 30 min and subsequent photodegradation for 120 min. The enhanced performance of the Cu3P/TiN—x composites is attributed to the introduced flocculent TiN with a large specific surface area and high conductivity that provide more reactive sites and high electron transferability. Meanwhile, the strong corrosion resistance and chemical stability were also beneficial to the improved performance. Cycling experiments further demonstrate the stability and reliability of the composites. In addition, the capture experiments indicated that the superoxide radical (·O2−) and hydroxyl radical (·OH) played a major role in sulfamethoxazole degradation.Keywords:Cu3P/TiN;plasmonic photocatalyst;sulfamethoxazole;photodegradation
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Research Express
·
2019
·Vol. 6
·期 9
·096433
·
IF 1.449
Baosong Li,Shengsong Du,Tianyong Mei
Ni-Cu/TiN-ZrO2 nanocomposite coating was pulse electrodeposited by incorporation of Cu, TiN and ZrO2 simultaneously in Ni deposits from a citrate bath in the presence of additives. The surface morphology, structural and electrochemical properties of Ni-Cu/TiN-ZrO2 nanocomposite coating were evaluated. Results illustrated that the nanocomposite coating exhibits nodular-like structure with aggregated granules dispersed on its surface. The anti-corrosion performance of Ni-Cu deposits could be reinforced much by incorporation of TiN-ZrO2 nanoparticles. The surface of the coating contains Ni, Cu, Ti, Zr, O and C elements and indicates the formation of the oxide layer. The corrosion resistance of the nanocomposite coating is not only dependent on the current density and duty cycle, but also their combination. The Ni-Cu/TiN-ZrO2 nanocomposite coating electrodeposited at duty cycle of 70% and current density of 4 A dm−2 has the highest anti-corrosion performance. In comparison with duty cycle and current density, the effect of frequency on corrosion resistance is not much.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2018
·Vol. 102
·期 7
·3972-3979
·
IF 2.956
Sanyuan Hu,Tao Chen,Jianye Liang,Huamin Zhou,Dequn Li,Heping Li,Youwei Yan
The fast developing electronic industry boosts higher demand of transparent electrode. Nanofiber network design provides a new platform for finding alternative materials to replace the traditional indium-doped tin oxide (ITO) film as transparent electrode. In this work, the TiN nanofiber network with a micron-scale precise geometry was firstly assembled by solution electrowriting. Unlike the ordinary opaque TiN film or bulk, the geometry patterned TiN nanofiber network achieved an ultrahigh transparency above 90%. Due to the electrical conductive virtue of TiN, the network reached a relatively low sheet resistance of 10.3 Ω/sq that can be comparable to ITO and even metal nanofibers. The combination of high transparency and low sheet resistance in TiN nanofiber network paves a way for its application as transparent electrode. Moreover, the figure-of-merit of TiN nanofiber transparent electrode was controllable by simply adjusting the geometry size of TiN nanofiber pattern. A series of oxidation resistance and corrosion resistance tests were additionally carried out, which caused little effect on the performance of TiN nanofiber transparent electrode. This excellent antioxidative and anticorrosive property demonstrates the high chemical durability of TiN nanofiber network, especially compared to metal nanofiber networks.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Jun Zhang,Chunyuan Wang,Shiyu Lu,Shuyue Liu,Pingjuan Liang,Huan Yi,Mengjie Li,Meng Jin,Rong Wang,Guangming Jiang
Enhancing the enrichment behavior of low-concentration chlorinated organic pollutants remains a significant challenge in electrocatalytic hydrodechlorination (EHDC) technology. Metal-loaded hollow nanoarchitecture has emerged as a promising nanoreactor to improve reaction enrichment behavior because of its tailorable microenvironments and electronic properties. Herein, a structural engineering strategy is developed to synthesize yolk-shell structured TiN spheres supported Pd nanoreactors (Pd/YS-TiN) with confined mesoscopic spaces. Characterization by multiple techniques reveals that the yolk-shell structure of YS-TiN, with high specific surface area (139.0 m 2 /g) and appropriately mesoporosity (6.9 nm), exposes numerous Pd nanoparticles (∼4.0 nm) on outer/inner surface of the shell and yolk-core solid sphere, ensuring an efficient utilization of active sites for enhancing the 2,4-DCP detoxification. Consequently, the structurally optimized Pd/YS-TiN nanoreactor consistently displays maximum reaction kinetics, dechlorination degree, faradaic current density, H* utilization and product selectivity, surpassing hollow TiN-supported Pd and Pd/C catalysts. The super EHDC performance of 91.8 % 2,4-DCP conversion, a specific activity of 1.68 min −1 mol Pd −1 , and a mass activity of 6.06 min −1 g Pd −1 is obtained at −0.85 V and 180 min, outperforming most reported catalysts. Combining experimental and density functional theory results, the exceptional reaction enrichment behavior of Pd/YS-TiN originates from (1) alleviating the overstrong adsorption of product phenol through strong metal-support interactions and (2) enhancing mass transport efficiency facilitated by the local concentration gradient and mesoporous shell. This study elucidates how metal-support interactions and mass transport synergistically enhance reaction enrichment behavior, showcasing potential benefits in environmental remediation applications.
研究领域:
环境科学
·
材料科学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Xianyi Tang,Cheng Tong,Lianqiao Tan,Zidong Wei,Meng Wang
Lithium-Sulfur Batteries (LiSBs) are prevented to apply in practice by the irreversible loss from the cathode and difficult conversation kinetics of lithium polysulfides (LiPSs). An ideal S host material should possess high conductivity and sufficiently dispersed catalytic active sites to precisely restore the dissolved LiPSs to the surface of the S host material. In traditional catalyst design, porous carbonaceous materials are often selected as carriers for the nano-catalytic activity sites. However, non-polar pure carbon interfaces, where without nano-catalytic activity sites covered, have a very weak affinity to LiPSs. Here, we use ammonia as a nitrogen source to anneal the reduced aerogel (graphene oxide (rGO) supported nano-TiO 2 ) at high temperatures. The N element is atomically doped into the lattice of the carbon matrix, and the nano-TiO 2 is converted to nano-TiN. A hierarchically porous and high conductivity TiN/N-C is prepared, in which the nano-TiN is well dispersed on the surface of N-doped rGO as an active center for catalyzing LiPSs conversion. The doped-N elements significantly increase the proportion of the polar surface. The S@TiN/N-C composite cathode delivered an excellent long-life cycling performance, and the reversible discharge specific capacity faded from 1224 ± 16 to 675 ± 31 mAh g −1 after 930 cycles. More importantly, after 150 cycles with a high S loading, a reversible areal capacity of 4.1 mAh cm −2 can be achieved.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2018
·
IF 4.229
Pingping Gao,Zhiyong Xie,Xiaobo Wu,Chun Ouyang,Ting Lei,Piaopiao Yang,Chunbo Liu,Junbin Wang,Tao Ouyang,Qizhong Huang
A highly corrosion resistant and conductive carbon/PTFE/TiN composite coating on Ti bipolar plates is prepared by a two-step hydrothermal and impregnation process. The composite coating exhibits a full coverage with uniformly distributed PTFE and TiN particles when 0.1 mol/L of glucose is used as carbon source and 10 wt % PFTE + 3 g/L TiN suspension as impregnating solution. The as-prepared composite coating film shows 0.009 μA cm −2 of corrosion current density and 13 mΩ cm 2 of ICR in the simulated solution of proton exchange membrane fuel cells, respectively. Meanwhile, the potentiostatic polarization test shows that the corrosion current density of the composite coating is below 1 μA cm −2 under real PEMFC working conditions of the cathode (0.6 V) and anode (−0.1 V). Additionally, the composite coating enhances hydrophobic property with a static contact angle of 120.2°and 115.5°before and after polarization test, respectively. In summary, the Ti substrate with carbon/PTFE/TiN composite coating shows a great potential application as bipolar plates of PEMFCs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sensors
·
2025
·
IF 9.1
Chonghui Zhu,Huan Wang,Zhaorui Zhang,Chenshuai Han,Huashuai Hu,Minghui Yang
Food spoilage leads to significant waste and poses serious health risks, yet real-time monitoring solutions remain limited throughout the supply chain and storage. Herein, we develop a Pt/Fe-TiN-based fuel cell gas sensor for highly sensitive and selective detection of hydrogen sulfide (H2S), a key indicator of meat spoilage. Fe doping in TiN effectively modulates the electronic structure of Pt, enhancing H2S sensitivity and mitigating humidity interference. The Pt/Fe-TiN sensor achieves a detection limit of 100 ppb and remains fully operational even at −18 °C. Compared to commercial Pt/C electrodes, it exhibits superior stability, retaining over 97% of its sensitivity after 60 days under high humidity. Furthermore, a real-time H2S monitoring device integrated with a smartphone interface was developed for continuous spoilage detection in meat storage. This work provides a practical, real-time sensing platform for food safety monitoring, contributing to reduced waste and improved supply chain transparency.
研究领域:
食品科学
·
传感器技术
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）