A simple and convenient method to fabricate new types of phytic acid–metal conversion coatings with excellent anti-corrosion performance on the iron substrate

Yan, Rusen; Gao, Xiang; He, Wei; Guo, Rui; Wu, Ruonan; Zhao, Zhuangzhi; Ma, Houyi

doi:10.1039/c7ra06186b

Cited by 70 publications

(21 citation statements)

References 45 publications

(56 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Phytic acid (PA) is a natural phosphorus resource and is abundant in seeds and grains in plants, which contains six phosphate groups and has a strong chelating ability. [33,34] The materials derived from phytic acid have been shown to exhibit high electrocatalytic activity, [35] and serve as anti-corrosion materials [36] and adsorbents. [37,38] Remarkably Kurungot and coworkers reported that PAÀ Fe xerogel (PA:Fe 3 + = 1 : 1) had high proton conductivity of 2.4 × 10 À 2 S cm À 1 at 120 °C and was used as proton conductor, [39] which was proved by the study of linear fuel cell polarization with the conduction of protons across the pelletized xerogel.…”

Section: Introductionmentioning

confidence: 99%

Self‐Foaming Metal‐Organic Gels Based on Phytic Acid and Their Mechanical, Moldable, and Load‐Bearing Properties.

Xiao

Gong

Zhang

2021

Chemistry A European J

View full text Add to dashboard Cite

A catalogue of metal‐organic gels are synthesized from phytic acid (PA) and a diversity of metal ions (Fe3+, Cr3+, Al3+, Ce3+, Y3+, Co2+, Ni2+, Mn2+, Cu2+, Zn2+, Mg2+) upon heating at 80 °C. PA−M gels have various morphologies, including irregular granular (PA−Fe, PA−Al, PA−Ce, PA−Cr, PA−Ni, PA−Co), spongy (PA−Y), and hollow tremella‐like (PA−Cu) morphologies. Interestingly for PA−Fe‐1 : 4 (PA:Fe3+=1 : 4) a large amount of gas is generated during the gelation process leading to a self‐foaming gel. The PA−Fe‐1 : 4 self‐foaming gel shows reversible gel‐sol phase transition. The gel is unusually weakened and transformed into a sol at room temperature, and the sol is reversed to gelation when heated again at 80 °C. PA−Fe‐1 : 4 gel also shows shapeable and load‐bearing properties, and it can bear up to 200 times of its weight, depending on the gas amount fixed in the foam gel and the aging time. This work provides a catalogue of self‐foaming supramolecular gels with tunable properties based on naturally abundant resources.

show abstract

Section: Introductionmentioning

confidence: 99%

Self‐Foaming Metal‐Organic Gels Based on Phytic Acid and Their Mechanical, Moldable, and Load‐Bearing Properties.

Xiao

Gong

Zhang

2021

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…As shown in Fig. 3a, four peaks centered at 533 eV, 284.7 eV, 228 eV and 171 eV 29 can be clearly seen, which correspond to the O 1s, C 1s, and P 2p signals, respectively. Note that the 228 eV and 171 eV peaks should belong to the energy loss line of P due to the machine limitations.…”

Section: Resultsmentioning

confidence: 91%

Synthesis of Fe, Co Incorporated in P-Doped Porous Carbon Using a Metal-Organic Framework (MOF) Precursor as Stable Catalysts for Oxygen Reduction Reaction

Wang

Guo

et al. 2018

J. Electrochem. Soc.

View full text Add to dashboard Cite

Heteroatom-doped porous carbon materials have recently attracted significant attention due to their superior catalytic activities for an oxygen reduction reaction (ORR). Transition metals co-doped with heteroatom are considered to have positive effects on improving ORR catalytic activity and stability. We report a series of novel Fe, Co incorporated in P-doped carbon materials, which give high ORR performance by an in-situ carbonization method. The ratios of the two metals and the carbonization temperatures are the key factors for the electrocatalytic activity. Due to the synergistic effect of the two transition metals, the Fe, Co incorporated in P-doped porous carbon sample, carbonized at 900 • C, shows the highest catalytic activity and stability. Electrochemical measurements show that Fe, Co incorporated in P-doped porous carbon materials are promising electrocatalysts to substitute Pt-based catalysts for fuel cells application. With the increasing environmental pollution caused by the use of fossil fuels, it is of great urgency to develop renewable energy conversion and storage devices, such as fuel cells and metal-air batteries, which are beneficial to environmental protection. The disadvantage of the present technologies is due to the sluggish oxygen reduction reaction (ORR) kinetics at the cathode, which consequently limits the working efficiency of these devices, thereby creating a need for extra ORR catalysts to increase the reaction rate. The most popular and efficient ORR catalyst is the commercial Pt/C (Pt nanoparticles loading on the carbon (XC-72)). However, due to its expensive cost, poor durability, and CO poisoning in the reaction, 1-5 the need to explore new efficient, durable, and cheap catalysts to substitute the Pt/C is urgent. In past decades, several alternatives have been developed, such as noble metal-based nanoparticles, 5,6 non-noble metal catalysts, 7,8 and metal-free materials. 9 Heteroatom-doped carbon materials are the representatives of the metal-free materials and the mechanism of the reduction of oxygen has been widely investigated. There is a consensus that the pyridine-like N and graphite-like N (also called quaternary N) are more active than the pyrrole-type N in the N-doped carbon materials for ORR. 10,11 In general, the excellent ORR catalytic activity is ascribed to the heteroatom-doped carbon material increasing the asymmetry of the carbon atomic spin density in accordance with the theoretical calculations.12,13 In 2013, Masa et al. verified that the trace amount of transition metal with heteroatom co-doped in carbon materials significantly improve the catalyst activity.14 The meticulous research showed that transition metal-doped carbon would intensify the asymmetry of the carbon atomic spin density to promote ORR. 14,15 Thus, designing transition metal-heteroatom-C electrocatalysts is applicable to improving the ORR catalytic activity. For example, Mu et al. synthesized a novel three-dimensions (3D) Fe-N-nanocarbon intercalated graphene catalyst, which possesses a high ...

show abstract

“…[ 22 ] The atomic force microscopy (AFM) tests exhibit the different thicknesses are ≈301, ≈253, and ≈336 nm for PA‐Zn, PA‐Co, and PA‐Ni films, respectively (Figure S4a–f, Supporting Information), as a result of the complexation ability of metal ions with phytic acid and the film compactness. [ 23 ] The root‐mean‐square (RMS) roughness value was calculated to be 10.7 nm for the pure Zn foil, but significantly increased to 34.7, 43.9, and 45.4 nm after coating of PA‐Zn, PA‐Co, and PA‐Ni film due to the formation of nanostructured grains. Furthermore, the Young's modulus of PA‐Zn, PA‐Co, and PA‐Ni films were calculated to be 28.7, 12.2, and 16.7 Gpa through the force–separation curves (Figure S4g–i, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Interface Coordination Stabilizing Reversible Redox of Zinc for High‐Performance Zinc‐Iodine Batteries

Chen

et al. 2022

Small

View full text Add to dashboard Cite

Alternatively, zinc with large theoretical capacity (gravimetric capacity −820 mAh g −1 and volumetric capacity −5855 mAh cm −3 ), appropriate low potential (−0.762 V versus standard hydrogen electrode) and good stability than alkaline metals, is particularly attractive in the scientific and technological areas. [2] For example, the alkaline zincmanganese dioxide batteries have been commercially used as the specific primary battery. [3] Notably, the mercury was originally added to provide the corrosion protection. Currently, the formation of zinc Scheme 1. The formation process of PA-M films and the proposed interface reactions. a) Scheme illustrations for interface reactions with and without PA-M films on the Zn surface. b) The proposed dynamic coordination process of Zn 2+ ions via coordinated hopping mechanism.

show abstract

A simple and convenient method to fabricate new types of phytic acid–metal conversion coatings with excellent anti-corrosion performance on the iron substrate

Abstract: A simple and practical method was developed to prepare phytic acid–metal complex coatings with excellent anti-corrosion performance on the iron substrate by making full use of the bridging effect of metal ions in the film-forming solution.

Cited by 70 publications

References 45 publications

Self‐Foaming Metal‐Organic Gels Based on Phytic Acid and Their Mechanical, Moldable, and Load‐Bearing Properties.

Self‐Foaming Metal‐Organic Gels Based on Phytic Acid and Their Mechanical, Moldable, and Load‐Bearing Properties.

Synthesis of Fe, Co Incorporated in P-Doped Porous Carbon Using a Metal-Organic Framework (MOF) Precursor as Stable Catalysts for Oxygen Reduction Reaction

Interface Coordination Stabilizing Reversible Redox of Zinc for High‐Performance Zinc‐Iodine Batteries

Contact Info

Product

Resources

About