Journal of Coatings Technology and Research
·
2023
·Vol. 20
·期 6
·1845-1856
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IF 2.3
Zhang Liying,Gan Guoyou,Fan Peiyuan,Liu Yunchuan,Wang Tianwei,Li Weichao,Du Jinghong
Amine ligand, as one of the essential components of the Ag–amine complex, is necessary to reduce the sintering temperature and time of conductive inks. Herein, we report the facile preparation of hybrid amine conductive silver ink, mainly composed of silver oxalate–hybrid amine complex and methanol–acetone solvent. The synergistic effect of long-chain and short-chain amines enhances the uniformity of silver nanoparticles in the silver film. A uniformly conductive silver film is obtained by spin-coating as-prepared ink on the polyimide film, followed by thermal sintering. Then, the influence of butylamine content and sintering parameters on the physical properties and microstructure of silver film is systematically investigated. The resistivity of silver films, sintered at 170 °C for only 20 min, is found to be 6.71 μΩ·cm, which is four times higher than bulk silver. In addition, silver films after bending and adhesion test exhibit low resistivity and excellent adhesion. These results indicate that the hybrid amine conductive silver ink can provide promising opportunities for fabricating highly conductive flexible printed electronics at low temperatures in short times.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2021
·Vol. 35
·期 8
·e6280
·
IF 4.105
Jinzhong Guo,Zhuming Guo,Zhiyin Xiao,Jing Jin,Xiuqin Yang,Yi He,Xiaoming Liu
Four new monoiron (II) tricarbonyl complexes with the amine bound, fac -[Fe(CO) 3 I 2 (NH 2 R)] (R = Et, 1 ; n Pr, 2 ; n Bu, 3 ; n Pent, 4 ), were reported using cis -[Fe(CO) 4 I 2 ] as the precursor. All the complexes 1 – 4 were structurally confirmed by various techniques such as ultraviolet–visible (UV–vis), Fourier transform infrared (FTIR), and nuclear magnetic resonance (NMR) spectra and elemental analysis of which complexes 1 and 2 are crystallographically determined. The reaction of the precursor with alkylamines proceeded in two main parallel pathways to form both aminium salts of fac -[Fe(CO) 3 I 3 ] − and the amine-bound complexes ( 1 – 4 ). Their dominances altered with the reaction time. These complexes in DMSO undergo quick decomposition with complex 1 as the relatively most stable one ( t 1/2 = 7.3 min) although they are stable in solid status. Unlike the triiodo anion and pyridinyl analogs showing severe cytotoxicity due to the generation of iodine radical during the decomposition, no iodine radicals were detected from the fac -[Fe(CO) 3 I 2 (NH 2 R)] complexes. Therefore, the cell viability of RT112 cells was not affected by the presence of the amine-bound iron complex ( 1 ) up to 100 μmol L −1 .
研究领域:
无机化学
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生物无机化学
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医学化学
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产品关联
DOI
高影响因子
ORGANOMETALLICS
·
2022
·
IF 3.837
Jixing Wang,Suting Xu,Xiang Hu,Yanchen Huo,Xiaochao Shi
Rare-earth metal complexes bearing pyridyl-functionalized amidinate ligands were synthesized, and upon activation by a borate, all of these complexes exhibited high catalytic activities for the living polymerization of isoprene and myrcene to generate trans-1,4 polymers (≤96.8% for polyisoprene and ≤94.8% for polymyrcene). A metal dependence effect was observed, and the scandium complexes with a smaller central ion afforded polymers with the highest trans-1,4-regularity. Moreover, the 3-Sc/[PhMe2NH][B(C6F5)4] binary system also promoted block copolymerization of isoprene and ε-caprolactone, affording the copolymers that consisted of a nonpolar polyisoprene block possessing trans-1,4-microstructure and a polar poly(ε-caprolactone) block.
研究领域:
化学
·
高分子科学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2021
·
IF 5.816
Jiali Gu,Xiaoli Yang,He Wang,Mengyuan Niu,Zhengyu Bai,Karthikeyan Kaliyappan,Lin Yang
The advancement of highly-efficient, non-noble metal electrocatalysts with high active sites for oxygen evolution reaction (OER) continues to face severe challenges. In this work, a new 3D flower-like α-Co(OH) 2 catalyst with high Co–NH 2 active sites (referred to as α-Co(OH) 2 –NH 2 ) is prepared. The Co–NH 2 active sites are formed through the interactions between Co 2+ and –NH 2 groups and exhibit higher electrocatalytic performance for OER in alkaline mediums, with a lower overpotential (300 mV at 10 mA cm −2 ), a flatter Tafel slope (75 mV dec −1 ) and a longer stability. Moreover, water splitting catalyzed by α-Co(OH) 2 –NH 2 delivers 1.62 V to reach a current density of 10 mA cm −2 . The mechanism studies show that the OER electrocatalytic activity is closely related to the content of –NH 2 . Density functional theory (DFT) calculations unveil that –NH 2 groups can facilitate the formation of OH∗ on the α-Co(OH) 2 surface and promote the desorption of O 2 ∗ into O 2(g) .
研究领域:
材料化学
·
电化学
·
纳米催化
·
能源材料
·
计算化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）