SYNTHETIC METALS
·
2016
·
IF 2.299
Jing Huang,Zhikang Liu,Shan Wang,Quanling Yang,Bin Liu,Lei Liu,Mengkui Wang,Chuanxi Xiong
A simple and effective approach is used to obtain the amino-capped tetraniline, which can be doped by the nonylphenol polyoxyethylene ether sulfate to acquire self-suspended tetraaniline through a common dialysis. The synthetic self-suspended tetraaniline was flowable at or near room temperature. Furthermore, the tetraaniline fluid could directly present the liquid crystal property without any solvent. Also the self-suspended tetraaniline exhibited a high electrical conductivity, which reached up to 0.1 S/m.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
ENERGY & FUELS
·
2024
·
IF 5.2
Xiao Zhang,Zhanyi Wang,Jianan Deng,Honghao Zhao,Yuan Zhuang,Ziyi Zhang,Xiuxia Sun,Haoyu Lian,Miao Han,Yongjun Tian
In recent years, new technologies involving self-suspending proppant (SSP), which improves proppant distribution, reduces the use of chemicals in fracturing fluids, and simplifies the fracturing construction process, have become a focus of hydraulic fracturing research. However, the available products have poor suspension stability, cannot withstand high temperature and salt environments, and are highly damaging to reservoirs. In this study, we presented a novel self-suspending (HTS-SSP) proppant with excellent suspension stability, temperature resistance, and salt resistance, prepared from quartz sand, silane coupling agent, and modified polyacrylamide to achieve these properties. Wettability tests, surface morphology analysis, and Fourier transform infrared spectroscopy analysis proved that 3-methacryloxypropyltrmethoxysilane (KH570) successfully modifies quartz sand, and the HTS-SSP was synthesized. In terms of the suspension performance, HTS-SSP exhibited exceptional suspension stability due to the incorporation of KH570. It remained suspended at 150 °C or 24 wt % brine and showed excellent temperature and salt resistance. The gel-breaking fluid of the surface polymer of HTS-SSP had low damage to the reservoir, much less than the guar gum fluid. The difference between the conductivity of the aggregate remaining after HTS-SSP gel-breaking and that of unmodified quartz sand was not significant. The synthesized HTS-SSP demonstrates outstanding comprehensive performance and is an ideal candidate for reservoir development under harsh temperature and salinity conditions.
研究领域:
石油工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2018
·Vol. 25
·期 2
·1-6
·
IF 1.434
He Jiahui,Xie Haian,Hong Jie,Gao Zhaodongfang,Liu Zhikang,Xiong Chuanxi
Polypyrrole (PPy) has attracted wide attention due to its high conductivity, environmental stability, low cost, facile synthesis and doping. However, the rigid backbone and π-conjugation structure of polypyrrole lead to the poor solubility and processability and thus restricting its applications. In this letter, self-suspended PPy was obtained by using a long-chain protonic acid CH 3 (CH 2 ) 8 C 6 H 4 (OCH 2 -CH 2 ) 10 SO 3 H (NPES) as dopant and then through a common dialysis. Such unique structured PPy is a kind of solvent-free fluid which can flow at or near room temperature. The solubility and processability of self-suspended polypyrrole have been improved effectively due to the introduction of oxyethylene groups and alkyl group. And it also directly presents unique liquid crystal property. Moreover, the self-suspended polypyrrole exhibited a relatively high electrical conductivity reached up to 0.11 S/m, presenting a typical characteristic of the semiconductor. Such self-suspended polypyrrole could be a promising alternative in the field of lightweight battery, super capacitor and metal anti-corrosion.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2021
·Vol. 27
·期 4
·1743-1755
·
IF 2.817
Akbar Abdul Rehman,Wu Jinxing,Tahir Muhammad,Hu Huihui,Yu Chen,Qadir Muhammad Bilal,Mateen Fahad,Xiong Chuanxi,Yang Quanling
To push the upper limit of capacitive materials, the integration of multi-modal capacitive materials has emerged as a potential solution. In this regard, we reported the novel binary composite of self-suspended polyaniline (S-PANI) and multi-walled carbon nanotubes (MWNTs). Compared with conventional polyaniline, S-PANI offers higher porosity and fibrillar polymeric network, which was achieved by doping long-chain protonic acid during in situ polymerization. S-PANI was loaded on oxidized carbon nanotubes (OCNTs) and sulfonated carbon nanotubes (SCNTs) to prepare S-PANI/OCNT and S-PANI/SCNT composite electrodes, respectively. The conductive and exclusive fibrillar S-PANI provide unobstructed channels for charge transport and electrolyte infiltration. Preliminary electrochemical studies revealed that the capacitance of the composite electrode reached 316.8 F g −1 and 345.4 F g −1 , and established exceptional capacitance retention rates of 92.8% and 93.7% after 5000 cycles for S-PANI/OCNT and S-PANI/SCNT composite, respectively, making it a potential candidate for imminent energy storage devices.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）