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  • Wiley  (6)
  • Yang, Shuai  (6)
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  • Wiley  (6)
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  • 1
    Online Resource
    Online Resource
    Boosting hydrogen peroxide production via establishment and reconstruction of single‐metal sites in covalent organic frameworks
    Wiley ; 2023
    In:  SusMat Vol. 3, No. 3 ( 2023-06), p. 379-389
    Details
    In: SusMat, Wiley, Vol. 3, No. 3 ( 2023-06), p. 379-389
    Abstract: Covalent organic frameworks (COFs) have been well developed in electrocatalytic systems owing to their controllable skeletons, porosities, and functions. However, the catalytic process in COFs remains underexplored, hindering an in‐depth understanding of the catalytic mechanism. In this work, uniform Pt–N 1 O 1 Cl 4 sites chelated via C–N and C=O bonds along the one‐dimensional and open channels of TP–TTA–COF were established. Different from conventional single‐metal sites constructed for the near‐free platinum for hydrogen evolution, the as‐constructed PtCl–COF showed 2e − oxygen reduction for H 2 O 2 production. We tracked the dynamic evolution process of atomic Pt sites in which Pt–N 1 O 1 Cl 4 was transformed into Pt–N 1 O 1 (OH) 2 using in situ X‐ray adsorption. The theoretical calculations revealed that the strong Pt–support interaction in Pt–N 1 O 1 (OH) 2 facilitated *OOH formation and thus led to higher selectivity and activity for the oxygen reduction reaction in the 2e − pathway. This work can expand the applications of COFs through the regulation of their local electronic states for the manipulation of the metal center.
    Type of Medium: Online Resource
    ISSN: 2692-4552 , 2692-4552
    URL: Issue
    URL: Article
    DOI: 10.1002/sus2.v3.3
    DOI: 10.1002/sus2.125
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 3060488-6
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  • 2
    Online Resource
    Online Resource
    One‐Dimensional Covalent Organic Frameworks for the 2e − Oxygen Reduction Reaction
    Wiley ; 2023
    In:  Angewandte Chemie International Edition Vol. 62, No. 14 ( 2023-03-27)
    Details
    In: Angewandte Chemie International Edition, Wiley, Vol. 62, No. 14 ( 2023-03-27)
    Abstract: Two‐dimensional covalent organic frameworks (2D COFs) are often employed for electrocatalytic systems because of their structural diversity. However, the efficiency of atom utilization is still in need of improvement, because the catalytic centers are located in the basal layers and it is difficult for the electrolytes to access them. Herein, we demonstrate the use of 1D COFs for the 2e − oxygen reduction reaction (ORR). The use of different four‐connectivity blocks resulted in the prepared 1D COFs displaying good crystallinity, high surface areas, and excellent chemical stability. The more exposed catalytic sites resulted in the 1D COFs showing large electrochemically active surface areas, 4.8‐fold of that of a control 2D COF, and thus enabled catalysis of the ORR with a higher H 2 O 2 selectivity of 85.8 % and activity, with a TOF value of 0.051 s −1 at 0.2 V, than a 2D COF (72.9 % and 0.032 s −1 ). This work paves the way for the development of COFs with low dimensions for electrocatalysis.
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    URL: Article
    DOI: 10.1002/anie.v62.14
    DOI: 10.1002/anie.202218742
    RVK:
    VA 2100
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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    Online Resource
  • 3
    Online Resource
    Online Resource
    One‐Dimensional Covalent Organic Frameworks for the 2e − Oxygen Reduction Reaction
    Wiley ; 2023
    In:  Angewandte Chemie Vol. 135, No. 14 ( 2023-03-27)
    Details
    In: Angewandte Chemie, Wiley, Vol. 135, No. 14 ( 2023-03-27)
    Abstract: Two‐dimensional covalent organic frameworks (2D COFs) are often employed for electrocatalytic systems because of their structural diversity. However, the efficiency of atom utilization is still in need of improvement, because the catalytic centers are located in the basal layers and it is difficult for the electrolytes to access them. Herein, we demonstrate the use of 1D COFs for the 2e − oxygen reduction reaction (ORR). The use of different four‐connectivity blocks resulted in the prepared 1D COFs displaying good crystallinity, high surface areas, and excellent chemical stability. The more exposed catalytic sites resulted in the 1D COFs showing large electrochemically active surface areas, 4.8‐fold of that of a control 2D COF, and thus enabled catalysis of the ORR with a higher H 2 O 2 selectivity of 85.8 % and activity, with a TOF value of 0.051 s −1 at 0.2 V, than a 2D COF (72.9 % and 0.032 s −1 ). This work paves the way for the development of COFs with low dimensions for electrocatalysis.
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v135.14
    DOI: 10.1002/ange.202218742
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 505868-5
    detail.hit.zdb_id: 506609-8
    detail.hit.zdb_id: 514305-6
    detail.hit.zdb_id: 505872-7
    detail.hit.zdb_id: 1479266-7
    detail.hit.zdb_id: 505867-3
    detail.hit.zdb_id: 506259-7
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  • 4
    Online Resource
    Online Resource
    The effect of biliary obstruction, biliary drainage and bile reinfusion on bile acid metabolism and gut microbiota in mice
    Wiley ; 2022
    In:  Liver International Vol. 42, No. 1 ( 2022-01), p. 135-148
    Details
    In: Liver International, Wiley, Vol. 42, No. 1 ( 2022-01), p. 135-148
    Abstract: Preoperative obstructive jaundice is usually associated with higher post‐operative mortality. Although external biliary drainage (EBD) has been widely used to relieve obstructive jaundice, the role of bile reinfusion after EBD is still controversial. The aim of our study was to study the effects of biliary obstruction, biliary drainage and bile reinfusion on bile acid metabolism and gut microbiota. Methods Firstly, we created a mice bile drainage collection (BDC) model to simulate the process of biliary obstruction, drainage and bile reinfusion. Then, we analysed the faecal, serum, liver and bile samples to investigate the effects of the process on bile acid profiles and gut microbiota. Finally, we evaluated the clinical effects of bile reinfusion. Results We evaluated the bile acid profiles of faeces, serum, liver and bile of normal mice. During biliary obstruction, secondary bile acids can still be produced, and increased in the liver and serum of mice. Compared with no bile reinfusion, bile reinfusion was beneficial to the recovery of T‐ωMCA in the liver and bile, and can restore the colon crypt length shortened by biliary obstruction. Only Ruminococcus_1 proliferated when the biliary obstruction lasted for 12 days. In the clinic, bile reinfusion cannot accelerate the patient's perioperative recovery or prolong long‐term survival. Conclusion We have successfully created a mice bile drainage collection model. Short‐term bile reinfusion can partially benefit the recovery of the secondary bile acids in the liver and bile, but hardly benefit the patient's perioperative recovery or long‐term survival. (247 words).
    Type of Medium: Online Resource
    ISSN: 1478-3223 , 1478-3231
    URL: Issue
    URL: Article
    DOI: 10.1111/liv.v42.1
    DOI: 10.1111/liv.15047
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2124684-1
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  • 5
    Online Resource
    Online Resource
    Superhydrophobic “Pump”: Continuous and Spontaneous Antigravity Water Delivery
    Wiley ; 2015
    In:  Advanced Functional Materials Vol. 25, No. 26 ( 2015-07), p. 4114-4119
    Details
    In: Advanced Functional Materials, Wiley, Vol. 25, No. 26 ( 2015-07), p. 4114-4119
    Abstract: Antigravity transportation of water, which is often observed in nature, is becoming a vital demand for advanced devices and new technology. Many studies have been devoted to the motion of a single droplet on a horizontal or inclined substrate under specific assistance. However, the self‐propelled water motion, especially continuous antigravity water delivery, still remains a considerable challenge. Here, a novel self‐ascending phenomenon driven only by the surface energy release of water droplets is found, and a superhydrophobic mesh to pump water up to a height of centimeter scale is designed. An integrated antigravity transportation system is also demonstrated to continuously and spontaneously pump water droplets without additional driving forces. The present novel finding and integrated devices should serve as a source of inspiration for the design of advanced materials and for the development of new technology with exciting applications in microfluidics, microdetectors, and intelligent systems.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    URL: Article
    DOI: 10.1002/adfm.v25.26
    DOI: 10.1002/adfm.201501320
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
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    Online Resource
  • 6
    Online Resource
    Online Resource
    MRI Assessment of Brain Frailty and Clinical Outcome in Patients With Acute Posterior Perforating Artery Infarction
    Wiley ; 2023
    In:  Journal of Magnetic Resonance Imaging
    Details
    In: Journal of Magnetic Resonance Imaging, Wiley
    Abstract: Global brain health has gained increasing attention recently. Imaging markers of brain frailty have been related to functional outcomes in previous studies on anterior circulation; however, little data are available on imaging markers and posterior circulation. Purpose To investigate the impact of brain frailty on functional outcomes in patients with acute perforating artery infarction (PAI) of the posterior circulation. Study Type Prospective. Population One hundred patients (60.78 ± 9.51 years, 72% men) with acute posterior circulation PAI (determined by diffusion‐weighted magnetic resonance imaging (MRI)/time‐of‐flight MR angiography). Field Strength/Sequence T1‐ and T2‐weighted fast spin echo, T2‐weighted fluid‐attenuated inversion recovery, diffusion‐weighted echo planar, gradient echo (susceptibility‐weight imaging), and 3D time‐of‐flight MR angiography sequences at 3.0 T. Assessment Periventricular and deep white matter hyperintensities (WMH), enlarged perivascular spaces (EPVS) in the basal ganglia and centrum semiovale area, lacunes, cerebral microbleeds (CMB), and total brain frailty score by calculating the above imaging characters were rated visually by three radiologists with 9, 10, and 11 years of experience and one neuroradiologist with 12. Infarction volume was assessed using baseline diffusion‐weighted imaging (DWI) data obtained within 24 hours of symptom onset. A modified Rankin Scale (mRS) score 〉 1 on day 90 defined an adverse functional outcome. Associations between the imaging markers of brain frailty and functional outcomes were assessed. Statistical Tests Fisher's exact test, Mann–Whitney U test, and multivariable binary logistic regression. A P value 〈 0.05 was considered statistically significant. Results Adverse prognoses (mRS  〉  1) were observed in 34 (34%) patients. Infarction volume, periventricular WMH, deep WMH, basal ganglia EPVS, CMB, and the brain frailty score were significantly associated with adverse functional outcomes. An increased brain frailty score was significantly associated with unfavorable mRS score on day 90 (odds ratio 1.773, 95% confidence interval 1.237–2.541). Data Conclusion Advanced MRI imaging markers of brain frailty, individually or combined as a total brain frailty score, were associated with worse functional outcomes after acute posterior circulation PAI. Level of Evidence 3 Technical Efficacy Stage 3
    Type of Medium: Online Resource
    ISSN: 1053-1807 , 1522-2586
    URL: Article
    DOI: 10.1002/jmri.28768
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 1497154-9
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