Chemical Science
·
2016
·Vol. 7
·期 10
·6477-6483
·
IF 9.144
Siwen Cui,Youbin Zheng,Jun Liang,Daoai Wang
As a new type of energy harvesting device, the triboelectric nanogenerator (TENG) can convert almost all kinds of mechanical energy into electricity based on the coupling of triboelectrification and electrostatic induction. Here, a novel TENG is constructed with a conducting polymer polypyrrole nanowire (PPy NW) electrode, which is prepared by an electrochemical polymerization method with anodic aluminum oxide (AAO) as the template. The PPy NW-based TENG shows high output performance with a maximum short circuit current density of 23.4 mA m−2 and output voltage of 351 V, which can light 372 commercial red LEDs. Moreover, a self-powered anticorrosion system powered by the PPy NW-based TENG is designed, which can provide extra electrons to inject into the surface of the protected metals, forming effective impressed current cathodic protection by harvesting mechanical energy or wind energy. This smart device has potential applications for protecting metals from corrosion in daily life, industrial production and ocean exploration by harvesting the energies in the ambient environment.
研究领域:
材料科学
·
纳米科技
·
电化学
·
能源工程
·
腐蚀科学
·
功能高分子材料
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·Vol. 13
·期 5
·118305
·
IF 7.2
Qian Xie,Zhengxin Cai,Yuxuan Wang,Jiajia Cai,Jianmin Wang,Shineng Sun
Photoelectrochemical cathodic protection (PCP) driven by solar energy represents a promising alternative to conventional corrosion protection methods. However, severe photocarrier recombination within the photoanode remains a major obstacle limiting PCP efficiency. Herein, a Z-scheme heterojunction composed of 3D TiO 2 nanotube arrays (T) and 2D ZnIn 2 S 4 (ZIS) nanoflowers was rationally constructed for the controllable growth and effective application in the PCP of Q235 steel. Benefiting from the Z-scheme charge transfer pathway, intimated interfacial contact, and broad UV–visible light absorption capability, the T/ZIS heterojunction exhibited significantly enhanced charge separation and transport efficiency. In the optimized configuration, the open-circuit potential under illumination (OCP L ) of T/ZIS-5 coupled with Q235 reached −1.07 V vs. SCE, accompanied by a photocurrent density of 240 μA/cm 2 , over 6-fold higher than that of bare T and superior to other reported photoanodes under similar conditions. This work highlights the important role of electrode design and interface engineering in optimizing PCP performance and provides valuable insights for the development of high-performance heterojunction-based photoelectrodes for solar-driven corrosion protection in marine environments.
✓ 已验证
DOI
高影响因子
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
·
2021
·Vol. 2022
·期 4
·e202100944
·
IF 2.524
Yichang Lin,Sheng Liu
Graphical Photocathodic protection is promising to harvest solar light for corrosion protection of metals. Benefiting from a considerably enhanced absorption for visible light and a significantly increased transfer efficiency for photogenerated charges, the as-prepared ZnO/ZnSe/CdSe photoanode exhibits a superior photocathodic protection performance for the coupled 304 stainless steel under illumination. Photocathodic protection technology is emerging to harvest solar light for electrochemical corrosion protection of metals. Herein, ZnO/ZnSe/CdSe heterostructured nanowire arrays were synthesized on conductive glass substrates by a two-step ion-exchange reaction in ZnO nanowire arrays. The as-prepared ZnO/ZnSe/CdSe core/shell nanostructure was unveiled by XRD, SEM, TEM, EDAX elemental mapping, and XPS analyses. The ZnO/ZnSe/CdSe ternary heterojunction photoanode exhibits a considerably enhanced absorption for visible light and a significantly increased separation, transfer, and collection efficiencies for photogenerated charges. When working as photoanodes, the as-deigned ZnO/ZnSe/CdSe heterostructured nanowire arrays demonstrates a superior photocathodic protection performance for the coupled 304 stainless steel under illumination with AM 1.5G.
研究领域:
材料科学
·
纳米技术
·
电化学
·
腐蚀防护
·
可再生能源
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 36
·18616-18625
·
IF 14.511
Xiukun Liu,Xu Xu,Fangjia Zhang,Xiangchao Ge,Haifeng Ji,Yuqi Li,Shaorong Lu,Zhen Wen
A sustainable, reliable and self-powered anti-corrosion method for metallic structures is key to improving the operation stability and service life of equipment. In this work, a series of durable superhydrophobic fluorinated silica (F-SiO2)/epoxy resin (FE) coatings with good corrosion resistance were prepared via a simple spraying method, which were further used to fabricate a FE based triboelectric nanogenerator (FE-TENG). A synergistic anti-corrosion system for self-powered cathodic protection constructed using the superhydrophobic FE coating and a water wave-driven FE-TENG was then proposed. In a 3.5 wt% NaCl solution, the corrosion potential (Ecorr) of an aluminum (Al) sheet protected by the FE-TENG self-powered cathodic protection was slightly decreased by 80 mV. However, when the Al sheet was coated with a FE superhydrophobic coating, the Ecorr was significantly reduced by 460 mV under FE-TENG protection. Notably, the Ecorr of 304 stainless steel protected by the synergistic anti-corrosion system was dramatically decreased by ∼745 mV. Furthermore, an application in marine corrosion protection was demonstrated by using a float-like spherical FE-TENG. This work demonstrates a cost-effective and large-scale strategy for preparing a superhydrophobic FE coating, using which a self-powered synergistic anti-corrosion system is built for effectively protecting metals from corrosion.
研究领域:
材料科学
·
腐蚀与防护
·
纳米能源
·
表面工程
·
功能材料
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Lei Wang,Yilun Gao,Jianjun Luo,Wenyang Xu,Chi Zhang,Hua Yuan,Yaopeng Zhang,Yaokun Pang
Biodegradable or eco-friendly triboelectric materials from natural polymers are considered promising and viable alternative for the development of green triboelectric nanogenerators (TENGs). Yet, they are mostly struggling from poor mechanical properties and low triboelectric output performance. In this work, we developed a highly efficient NH 2 -MXene/TiO 2 @sodium alginate (NMTS) composite film with NH 2 -MXene/TiO 2 as a filler and sodium alginate (SA) as a matrix and a TENG based on this composite film (NMTS-TENG) was constructed. The tribo-positive characteristic of SA was enhanced by adding NH 2 -MXene and TiO 2 . Different loaded content of the NH 2 -MXene and TiO 2 were explored and optimized to improve mechanical properties of the composite film and the output performance of NMTS-TENG. The microstructure and dielectric constant of the composite films were well characterized to investigate the enhancement mechanism. Under optimal conditions, the tensile strength of the composite film reaches up to 175.0 MPa and surpass the pure SA film. The NMTS-TENG shows the output performance with an open-circuit voltage of 357.6 V and short-circuit current of 55.1 µA, and the output peak power increases by 9.3 times compared with pure SA-based TENG. In addition, we developed a TENG device to harvest ocean wave energy for self-powered cathodic protection. The electrochemical test results reveal that the open circuit potential of the protected Q235 carbon steel can decrease by 74 mV and the corrosion potential decrease by 146.5 mV, indicating the good anti-corrosion properties. This study provides a promising method to develop high-performance biomaterials based TENG and expands the practical application of SA in the field of the electrochemical cathodic protection.
研究领域:
材料科学
·
能源与环境科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHEMISTRY COMMUNICATIONS
·
2024
·
IF 4.7
Qian-Yu Wang,Teng Xu,Ji-Ming Hu
In this work, TiO 2 was firmly attached on freestanding graphene (Gr, rather than graphene oxide or reduced graphene oxide) nanosheets (Gr@e-TiO 2 ) by a novel electrodeposition method. The morphology, crystal structure, band gap characteristics, optical properties and photoelectric properties were systematically investigated. It is indicated that the absorption of visible light increased and the recombination of photogenerated electron-hole pairs decreased for the as-obtained Gr@e-TiO 2 . Compared with pure TiO 2 as well as GO (graphene oxide)@h-TiO 2 prepared by conventional hydrothermal method, Gr@e-TiO 2 exhibited a more negative open circuit potential and higher photocurrent density for 304SS protection. The enhanced photocathodic protection performance of Gr@e-TiO 2 can be attributed to the large specific surface area and good charge transport efficiency of graphene.
研究领域:
材料科学
·
电化学
·
纳米技术
·
腐蚀防护
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2019
·Vol. 137
·期 21
·48733
·
IF 2.188
Yuzheng Xia,Huan Cheng,Leijiao Duo,Dong Zhang,Xiaonong Chen,Shuxian Shi,Lei Lei
Photocathodic protection coatings have been widely applied in various areas such as ship and architectural protection, or chemical industry. In this work, a composite of titanium dioxide loaded with reduced graphene oxide (RGO/TiO 2 ) was prepared and used as filler on waterborne polyacrylate (PA) coating to reinforce the metal protection against corrosion. Compared with the current filler of zinc phosphate used for anticorrosive coating, the photoelectrochemical properties of RGO/TiO 2 -PA coating exhibit improved photocathodic protection under visible light illumination since RGO/TiO 2 composite has significant superiority in enhancing metal protection due to its dispersion, micropore blocking ability, and photoelectrochemical conversion performance. The mechanism of anticorrosion reinforcement of RGO/TiO 2 -PA coating was hypothesized that graphene provides an extrabarrier layer to obstruct corrosive in dark condition and photocathodic protection under lighting. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48733.
研究领域:
材料科学
·
化学工程
·
腐蚀科学
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Jiangping Jing,Zhuoyuan Chen,Yuyu Bu,Mengmeng Sun,Wenqiang Zheng,Weibing Li
SrTiO 3 is a promising material for the photoelectrochemical (PEC) cathodic protection technology due to its intrinsic band structure . Its disadvantage of light absorption only in the ultraviolet region can be effectively solved by Cr doping. The Cr dopant usually exists as two states of Cr 3+ and Cr 6+ , among which the latter one usually behaves as the trapping center for the photoinduced electrons and leads to the decrease of the PEC performance. In this paper, a hydrogen treatment process is performed on the Cr-doped SrTiO 3 to reduce the Cr 6+ . It is verified that hydrogen treatment reduces Cr 6+ to Cr 3+ , leading to the increase of the concentration of the charge carriers and the decrease of the charge transfer resistance. And also, hydrogen treatment induces the formation of oxygen vacancy , which leads to the negative shift of conduction band potential and the increase of the concentration of the charge carriers. The effect of the hydrogen treatment temperature is further studied in this work. Higher temperature will promote the reduction degree of Cr 6+ and increase the concentration of oxygen vacancy . However, hydrogen treatment with excessively high temperature will induce too high concentration of oxygen vacancy, which would act as the recombination centers of the photogenerated charge carriers, suppress the mobility conduction and thus lead to the decrease of the PEC performance. Therefore, benefiting from the Cr 6+ reduction and modification with appropriate concentration of oxygen vacancy, the Cr-doped SrTiO 3 with hydrogen treatment at 250 °C shows the optimal PEC cathodic protection performance in NaCl solution.
研究领域:
材料科学
·
电化学
·
光电化学
✓ 已验证
DOI
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 18
·6554
·
IF 4.6
Yue Chang,Kaili Suo,Yuhang Wang,Xiaona Ren,Jiangli Cao
In this work, a TiO2/In2S3heterojunction film was successfully synthesized using a one-step hydrothermal method and applied in the photocathodic protection (PCP) of 304SS. The octahedral In2S3and In2S3@TiO2nanoparticles combined and coexisted with each other, with In2S3quantum dots growing on the surface of TiO2to form In2S3@TiO2with a wrapping structure. The composite photoelectrode, which includes TiO2with a mixed crystalline phase and In2S3, exhibited significantly enhanced PCP performance for 304SS compared with pure In2S3and TiO2. The In2S3@TiO2/In2S3composites with 0.3 g of P25 titanium dioxide (P25) showed the best protection performance, resulting in a cathodic shift of its OCP coupled with 304SS to −0.664 VAgCl. The electron transfer tracking results demonstrate that In2S3@TiO2/In2S3forms a Z-scheme heterojunction structure. The enhanced PCP performance could be attributed to the synergistic effect of the mixed crystalline phase and the Z-scheme heterojunction system. The mixed crystalline phase of TiO2provides more electrons, and these electrons are gathered at higher energy potentials in the Z-scheme system. Additionally, the built-in electric field further promotes the more effective electrons transfer from photoelectrode to the protected metals, thus, leading to enhanced photoelectrochemical cathodic protection of 304SS.
研究领域:
材料科学
·
电化学
·
腐蚀科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS RESEARCH BULLETIN
·
2025
·
IF 5.7
Juan Liu,Yingnan Qin,Meiqi Wang,Hengjun Liu,Tao Zheng,Jing Tian,Jing Wang
BiVO 4 -based materials have attracted extensive research as advanced photoanode for photogenerated cathodic protection. However, the performance of BiVO 4 -based photoanodes is greatly hindered by its weak charge migration and positive conduction band potential. Herein, poly-2,6-diaminoanthraquinone (PDAAQ)/Bi was grafted on BiVO 4 to improve the separation efficiency of photogenerated carriers and enhance the reducing ability of photogenerated electrons. Studies show that a type II heterojunction can be formed between PDAAQ and BiVO 4 , which accelerates the separation of photogenerated carriers at the interface. In addition, the Bi monomers anchored on BiVO 4 /PDAAQ then expand the light absorption range through the surface plasmon resonance effect. Consequently, the obtained BiVO 4 /PDAAQ/Bi photoanode exhibits a promising photocurrent density of 40 μA·cm -2 , while the photoinduced potential drop is 540 mV, which is approximately 1.4 times of BiVO 4 materials. These outcomes provide general ideas for the design of organic-inorganic heterozygous systems for achieving eco-friendly corrosion protection.
研究领域:
材料科学
·
光电化学
·
腐蚀防护
·
半导体异质结
·
纳米复合材料
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Mingxing Wang,Xiutong Wang,Youbo Nan,Hui Xu,Hui Zhou,Yanan Sun,Peijia Yi,Teng Yu
Raindrops are an abundant micromechanical renewable energy source in nature, and raindrop energy harvesting has always been a research hotspot. Traditional hydropower generation is not suitable for low-frequency energy harvesting, and it is difficult to realize distributed energy harvesting. The development of triboelectric nanogenerator (TENG) is a promising strategy for converting raindrop energy in the environment into electrical energy. Polydimethylsiloxane (PDMS) composite has received much attention due to its excellent chemical stability and insulating properties for TENG. However, the deficiency of the low output performance and insufficient hydrophobicity of PDMS limits the application of PDMS in droplet energy capture. Modification of PDMS can improve the droplet energy collection capability of the liquid–solid contact triboelectric (LS-TENG). In this work, a new approach to modifying polydimethylsiloxane (PDMS) as a hydrophobic negative triboelectric material using a high dielectric constant MXene and a hydrophobic nano-SiO 2 was reported. The as-prepared composites′ permittivity and triboelectric performance were remarkably promoted as compared to composites without interfacial modification. In addition, the use of composites for TENG assembly improved the open-circuit voltage and short-circuit current by a factor of 47.5 and 25.21, respectively, compared to pure PDMS. Application of the composite to the assembled TENG was employed as energy harvester to light up LEDs and charge a capacitor. In addition, a cathodic protection system was designed to demonstrate its potential application in the field of electrochemistry. This provides guidance for the practical implementation of TENGs in the field of electrochemical cathodic protection.
研究领域:
能量收集
·
纳米技术
·
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Xuhong Jiang,Mengmeng Sun,Zhuoyuan Chen,Jiangping Jing,Guiying Lu,Chang Feng
Boosting the photoinduced cathodic protection (CP) for metals in NaCl solution is crucial for achieving the application of photoelectrochemical conversion in marine corrosion protection. An environmentally friendly three-dimensional ZnIn 2 S 4 /TiO 2 nanoflowerbush (NFB) photoelectrode was constructed with sufficient interfacial incorporation based on the ultrafine branched TiO 2 nanobush substrate via a facile in situ hydrothermal method . This ZnIn 2 S 4 /TiO 2 NFB nanoheterojunction composite behaves excellent photoinduced CP performance for metallic materials. This is owing to the optimized construction of photoelectrode with relatively negative band potential, wide solar spectrum response, effective generation and collection of photoinduced electrons. The morphology, distribution and performance of ZnIn 2 S 4 vary with different substrates. The pure ZnIn 2 S 4 powder is nanoflower sphere composed of a lot of thin petals; when ZnIn 2 S 4 grow onto the FTO glass, the ZnIn 2 S 4 petals are distributed vertically on the two-dimensional structure; when ZnIn 2 S 4 grow on the three-dimensional ultrafine branched TiO 2 nanobush substrate, a ZnIn 2 S 4 /TiO 2 NFB architecture with ultrafine TiO 2 branchlet cores are formed. This ZnIn 2 S 4 /TiO 2 NFB photoelectrode can achieve efficient photoinduced CP performance for pure copper and low alloy steels with different negative self-corrosion potentials, such as Cu (−0.18 V), E40 (−0.45 V), Q345 (−0.55 V) and Q235 carbon steel (−0.65 V) under simulated sunlight irradiation in NaCl solution without additional hole scavengers, and the photoinduced CP current densities reach as high as 170, 72, 63 and 44 μA cm −2 , respectively. The high-efficiency photoinduced CP performance is closely related to the band structure gradient matching between the TiO 2 and ZnIn 2 S 4 , prompting both the widened absorption of solar spectrum and high-efficiency transfer of the photogenerated electron–hole pairs. Importantly, the negative band potential of ZnIn 2 S 4 endues a lower surface work function which benefits the electron transport to the under-protected metallic materials to achieve photoinduced CP. This photoelectrode exhibits huge photoinduced CP application potential in marine environments.
研究领域:
材料科学
·
电化学
·
腐蚀科学
·
光电化学
·
海洋工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）