Porous Materials for Atmospheric Water Harvesting

Zhang, S. B.; Fu, Jingru; Xing, Guolong; Zhu, Weidong; Ben, Teng

doi:10.1002/open.202300046

Cited by 13 publications

(9 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the characteristic peaks for alkyl CÀ H group at 2952 cm À 1 and 2915 cm À 1 appeared in FJU-CTF-TIZ600 and FJU-CTF-FIZ600, indicating the existence of a certain degree of destruction for the CTFs frameworks at 600 °C. As shown in the 13 C MAS NMR, the peak at near 174.1 and 150.6 ppm can be attributed to sp 2 carbon from the triazine unit and C-2 of the benzimidazole units, respectively. The appearance of new peak at 65.3 and 26 ppm in FJU-CTF-TIZ600 and FJU-CTF-FIZ600 corresponds to the aliphatic carbon, [16] again confirming the existence of framework destruction at 600 °C.…”

Section: Resultsmentioning

confidence: 79%

“…Using ionothermal polymerization approach with molten ZnCl 2 as catalyst and reaction solvent, four CTFs polymers including TIZ500, TIZ600, FIZ500 and FIZ600 were prepared from two kinds of bisbenzimidazole monomers containing FIZ or TIZ unit (Scheme.1), which were confirmed by FTIR (Figure S2) and 13 C CP/MAS NMR spectra (Figure S3). In the FT-IR spectra, the peaks around 2239 cm À 1 for cyano groups in FIZ and TIZ almost disappeared after ionothermal polymerization.…”

Section: Resultsmentioning

confidence: 91%

“…1 H NMR (400 MHz, dmso-d 6 , δ, ppm): 8.63 (s, 2H), 8.58 (d, 2H, J = 8.00 Hz), 7.95 (t, 2H, J = 8.00 Hz), 7.78 (d, 2H, J = 8.00 Hz), 7.74 (t, 2H, J = 4.00 Hz), 7.60(d, 2H, J = 8.00 Hz). 13 C NMR (151 MHz, DMSO, δ, ppm) δ 147. 9764, 134.7775, 133.9911, 133.4269, 132.4767, 129.1118, 127.3594, 119.2983, 114.1926, 112.1303, 110.4769.…”

Section: Methodsmentioning

confidence: 99%

“…Following the synthesis conditions of TIZ, FIZ (4.26 g, 71 %). 1 H NMR (400 MHz, dmso-d 6 , δ, ppm): 13.29(s, 4H, J = 8.00 Hz), 8.07(d, 4H, J = 8.00 Hz), 7.93(s, 2H), 7.77(d, 2H, J = 8.00 Hz), 7.78(d, 2H, J = 8.00 Hz), 7.65(d, 2H, J = 8.00 Hz) 13 C NMR (101 MHz, DMSO, δ, ppm): 140.38, 139.638, 136.468, 133.41, 131.99, 131.41, 130.26, 122.80, 122.76, 118.91, 116.46, 113.61, 112.59. m/z :437 (M À ).…”

Section: Synthesis Of Fiz (Scheme S2)mentioning

confidence: 99%

“…The ideal adsorbents to achieve AWH generally have high water adsorption capacity, stable and rapid cyclic performance for water adsorption and desorption, and suitable s-type adsorption isotherm with a steep pore-filling step at low relative humidity (40 % RH) and without hysteresis. [13] In order to improve the AWH performance, it is important to govern the pore environment and water molecule-pore interactions through pore engineering. [14] Despite high performance for AWH in the some materials, only a few porous materials are found to be suitable for AWH.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Atmospheric Water Harvesting in Microporous Organic Polymers Constructed from Trazine and Benzimidazole Units

Huang,

Yang,

Chen

et al. 2023

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

Porous materials‐assisted atmospheric water harvesting (AWH) approaches are attractive for addressing the severe shortage of freshwater resources. Herein, ionothermal polymerization approach was employed to realize four porous organic polymers (FJU‐CTFs) with strong hydration stability and low skeleton density for atmospheric water harvesting. The materials exhibited ultra‐high water vapor adsorption capacity (1108 cm3 g‐1), s‐type adsorption isotherms, and rapid filling of water vapor in the pores of the materials under low humidity conditions. It has the characteristics of atmospheric water harvesting from the air at lower humidity (30%‐40%) and narrow temperature (30‐40 °C). A total of 30 times of water adsorption‐desorption cycles showed the excellent working ability and hydrolytic stability of FJU‐CTFs, which provided new solutions for the application of porous materials in AWH and expanded new material types.

show abstract

Section: Resultsmentioning

confidence: 79%

Section: Resultsmentioning

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Section: Synthesis Of Fiz (Scheme S2)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Atmospheric Water Harvesting in Microporous Organic Polymers Constructed from Trazine and Benzimidazole Units

Huang,

Yang,

Chen

et al. 2023

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

Superspreading Surface with Hierarchical Porous Structure for Highly Efficient Vapor–Liquid Phase Change Heat Dissipation

Liu,

Fu,

et al. 2024

Small

View full text Add to dashboard Cite

Superspreading surfaces with excellent water transport efficiency are highly desirable for addressing thermal failures through the liquid–vapor phase change of water in electronics thermal management applications. However, the trade‐off between capillary pressure and viscous resistance in traditional superspreading surfaces with micro/ nanostructures poses a longstanding challenge in the development of superspreading surfaces with high cooling efficiency in confined spaces. Herein, a heat‐treated hierarchical porous enhanced superspreading surface (HTHP) for highly efficient electronic cooling is proposed. Compared with the single porous structures in nanograss, nanosheets, and copper foam, HTHP with hierarchical honeycomb pores effectively resolves the trade‐off effect by introducing large vertical through‐pores to reduce viscous resistance, and connected small pores to provide sufficient capillary pressure synergistically. HTHP exhibits excellent capillary performance in both horizontal spreading and vertical rising. Despite a thickness of only 0.33 mm, the as‐prepared ultrathin vapor chamber (UTVC) fabricated to exploit the superior capillary performance of HTHP achieved effective heat dissipation with outstanding thermal conductivity (12 121 Wm−1K−1), and low thermal resistance (0.1 KW−1) at a power of 5 W. This regulation strategy based on hierarchical honeycomb porous structures is expected to promote the development of high‐performance superspreading surfaces with a wide range of applications in thermal management.

show abstract

Cobalt‐Ion Superhygroscopic Hydrogels Serve as Chip Heat Sinks Achieving a 5 °C Temperature Reduction via Evaporative Cooling

Xi,

Zhang,

Liu

et al. 2024

Small Methods

View full text Add to dashboard Cite

In the rapidly advancing semiconductor sector, thermal management of chips remains a pivotal concern. Inherent heat generation during their operation can lead to a range of issues such as potential thermal runaway, diminished lifespan, and current leakage. To mitigate these challenges, the study introduces a superhygroscopic hydrogel embedded with metal ions. Capitalizing on intrinsic coordination chemistry, the metallic ions in the hydrogel form robust coordination structures with non‐metallic nitrogen and oxygen through empty electron orbitals and lone electron pairs. This unique structure serves as an active site for water adsorption, beginning with a primary layer of chemisorbed water molecules and subsequently facilitating multi‐layer physisorption via Van der Waals forces. Remarkably, the cobalt‐integrated hydrogel demonstrates the capability to harvest over 1 and 5 g g−1 atmospheric water at 60% RH and 95% RH, respectively. Furthermore, the hydrogel efficiently releases the entirety of its absorbed water at a modest 40°C, enabling its recyclability. Owing to its significant water absorption capacity and minimal dehydration temperature, the hydrogel can reduce chip temperatures by 5°C during the dehydration process, offering a sustainable solution to thermal management in electronics.

show abstract

Porous Materials for Atmospheric Water Harvesting

Cited by 13 publications

References 78 publications

Atmospheric Water Harvesting in Microporous Organic Polymers Constructed from Trazine and Benzimidazole Units

Atmospheric Water Harvesting in Microporous Organic Polymers Constructed from Trazine and Benzimidazole Units

Superspreading Surface with Hierarchical Porous Structure for Highly Efficient Vapor–Liquid Phase Change Heat Dissipation

Cobalt‐Ion Superhygroscopic Hydrogels Serve as Chip Heat Sinks Achieving a 5 °C Temperature Reduction via Evaporative Cooling

Contact Info

Product

Resources

About