Mineralized supramolecular hydrogel as thermo-responsive smart window

Wang, Yu; Bai, Shengyu; Wei, Lai; Niu, Xiaofeng; Wang, Shengting; Niu, Muchuan; Li, Li; Guo, Xuhong; Gao, Yanfeng

doi:10.1007/s10853-020-05710-3

Cited by 13 publications

(8 citation statements)

References 29 publications

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“…Hydrogels can exhibit both thermochromic and thermotropic behaviors and have been successfully developed for diverse applications such as camouflage fabrics, textiles for drug release, drug delivery, temperature sensors, smart windows, and many others. [10,11,32,42,49,[74][75][76] Common examples of thermochromic hydrogels are poly(N-isopropyl acrylamide) (PNIPAM), [50,76,77] hydroxypropyl cellulose (HPC), [42] poly(acrylic acid), [75] and poly(vinyl alcohol) (PVA). [13] A common mechanism for thermotropic hydrogels is phase transformations between isotropic and anisotropic phases through changes in the lyotropic liquid crystalline structure and the development of temperature-responsive micelles.…”

Section: Liquid Crystalsmentioning

confidence: 99%

Green Thermochromic Materials: A Brief Review

Crosby

Netravali

2022

Advanced Sustainable Systems

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common thermochromic systems studied are leuco dyes and pigments, liquid crystalline polymers, and transition metal inorganic complexes. [2,15,[16][17][18][19][20][21][22][23] However, finished thermochromic materials commonly consist of or are incorporated into media that are or contain toxic, hazardous, or nondegradable components. [8,15,24] This limits their usage in applications that can pose the risk of cytotoxicity to the human body, such as food packaging or body temperature sensing devices for infants. Further, such hazardous and nondegradable materials exhibit high levels of persistence in soil as well as water systems and can pollute and disrupt these critical ecological systems. [24][25][26] "Green" thermochromic materials is a new and emerging field of research. Breakthroughs in this field will seek to replace toxic or inorganic materials which dominate the current thermochromic literature and applications with newly developed greener ones. Being a field in its infancy, there has yet to be a body of work that accumulates the current state of research in this field. This brief review seeks to explore and identify the constituent requirements for green materials as well as equip researchers to design thermochromic systems utilizing green chemistry. The history of thermochromism is reviewed in this paper. The mechanisms of thermochromism in common solids, liquids, and mesophases are considered as well as how the mechanistic pathway translates into their current applications. A general distinction between reversible and irreversible thermochromism is also discussed. Recent advances in the emerging field of green thermochromic materials are discussed critically and future applications mentioned.

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Section: Liquid Crystalsmentioning

confidence: 99%

Green Thermochromic Materials: A Brief Review

Crosby

Netravali

2022

Advanced Sustainable Systems

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“…11 To date, several emerging thermoresponsive materials have been widely studied, including hydrogels, ionic liquids, perovskites, metamaterials, and liquid crystals. 12,13 Thermochromic hydrogels are considered as one of the most cost effective categories and some of the recent research is summarized in Table 1. For example, Li et al reported a new strategy of realizing both large and broadband transmittance modulation by controlling the particle size and internal structure of poly(N-isopropylacrylamide-2-aminoethylmethacrylate hydrochloride) (P(NIPAM-AEMA)).…”

Section: Introductionmentioning

confidence: 99%

Physical crosslinked hydrogel-derived smart windows: anti-freezing and fast thermal responsive performance

chen

Yan

et al. 2023

Mater. Horiz.

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“…In this context, IrO 2 and RuO 2 have been considered as leading OER catalysts [45][46][47] whereas platinum (Pt) is regarded as the top ORR electrocatalyst. [48][49][50] Figure 1. Proposed OÀ O bind formation and cleavage mechanism in chemistry and biology.…”

Section: Introductionmentioning

confidence: 99%

Bio‐inspired Design of Bidirectional Oxygen Reduction and Oxygen Evolution Reaction Molecular Electrocatalysts

et al. 2023

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The proper utilization of renewable energy sources has emerged as a major challenge in our pursuit of a sustainable and carbon‐neutral energy landscape. Small molecule activation is a key component for proper utilization of renewable energy resources, where O2/H2O redox couple is reckoned a potential game changer. In this regard, electrocatalytic oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) have become the prime interest of catalyst designers. Typically, these ORR and OER electrocatalysts are developed distinctly; however, very soon, the requirement of a bidirectional ORR/OER electrocatalyst becomes obvious for practical applicability and rapid energy transduction purposes. A bidirectional catalyst is defined as a catalyst capable of driving a redox reaction in opposing directions. In this review, we have portrayed the development of enzyme structure‐inspired design of molecular bidirectional ORR/OER catalysts. The strategic incorporation of secondary and outer coordination sphere features has significantly enhanced the performance of these catalysts, which can be monitored via the key catalytic parameters. These bifunctional OER/ORR catalysts are vital for metal‐air battery and fuel cell applications and appropriately poised to lay the foundation for an efficient, economical, and eco‐friendly pathway for sustainable energy usage with the rational assembly of energy converting and storage devices.

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Mineralized supramolecular hydrogel as thermo-responsive smart window

Cited by 13 publications

References 29 publications

Green Thermochromic Materials: A Brief Review

Green Thermochromic Materials: A Brief Review

Physical crosslinked hydrogel-derived smart windows: anti-freezing and fast thermal responsive performance

Bio‐inspired Design of Bidirectional Oxygen Reduction and Oxygen Evolution Reaction Molecular Electrocatalysts

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