Journal of Cleaner Production
·
2024
·
IF 9.7
Lili Yang,Chong Li,Yun Da,Jinrui Zhang,Gang Wang
Concentrated solar power (CSP) is a green energy technology that efficiently harnesses solar energy. Solid particles constitute the key medium for solar photothermal conversion and storage. However, drawbacks such as high thermal radiation loss and poor high-temperature stability limit their application. This paper proposes solid particles based on steel slag for highly efficient and durable selective sunlight absorptance and thermal storage. Raw pellets are obtained via a simple extrusion and rolling process, and sinter them to derive solid particles. These particles exhibit excellent selective solar absorption characteristics and have good potential for efficient heat storage. The average solar absorption of the solid particles sintered at 1310 °C reaches 93.20%, and the emissivity at 700 °C is 80.25%. Furthermore, the specific heat and the thermal conductivity of wafer-like materials are 1.09 J/(g·K) and 2.92 W/(m·K), respectively. In addition, the solid particles are arranged for exhaustive and harsh high-temperature durability tests, and they exhibit an ultra-stable solar weighted absorptance of 93.25 ± 0.09% (mean ± standard deviation), excellent resistance to thermal shock, and superior abrasion resistance. Moreover, the low cost and simplicity of the process greatly enhance the scalability of steel-slag-based solid particles. In summary, by innovatively addressing the challenges faced by solid particles, such as high radiative heat loss, poor heat storage capacity, and high-temperature instability, this study accumulates an advantage in the competition with phase-change and thermochemical materials, and greatly improves the feasibility of using solid particles in large-scale applications.
研究领域:
材料科学
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可再生能源
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Horizons
·
2023
·Vol. 10
·期 12
·5835-5846
·
IF 13.3
Yaya Tian,Ming-Sheng Zheng,Yuchao Li,Chuqi Xu,Yiyi Zhang,Wei Liu,Zhi-Min Dang,Jun-Wei Zha
Polymer dielectric materials with excellent temperature stability are urgently needed for the ever-increasing energy storage requirements under harsh high-temperature conditions. In this work, a novel diamine monomer (bis(2-cyano-4-aminophenyl)amine) was successfully synthesized to prepare a series of cyano-containing polyimides (CPI-1–3), which possessed excellent dielectric properties and high thermostability. The maximum dielectric permittivity was up to 5.5 at 102 Hz for CPI-3, being 2.5 times higher than that of commercially used BOPP. In comparison, the CPI-1 exhibited an outstanding breakdown strength of 433 MV m−1 and a high energy density of 2.5 J cm−3 even at 250 °C, which was the highest value reported under the same conditions. The synthesized CPIs through such an intrinsic approach are potential candidate materials for energy storage and even other applications under simultaneously harsh electrical and thermal conditions.
研究领域:
材料科学
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能源存储
·
高分子化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano-Micro Letters
·
2021
·Vol. 14
·期 1
·1-12
·
IF 16.419
Zhu Mengya,Li Guangyong,Gong Wenbin,Yan Lifeng,Zhang Xuetong
A calcium-doped boron nitride (Ca-BN) aerogel was synthesized by introducing Ca into crystal structure of BN building blocks.
The aerogels exhibited superior high-temperature stability and could resist the burning of butane flame (~1300 °C) in air atmosphere.
Ca-BN aerogel, together with Al foil, can effectively hide thermal target at high temperature up to 1300 °C.
研究领域:
材料科学
·
热学工程
✓ 已验证
DOI
高影响因子
Nature Communications
·
2022
·Vol. 13
·期 1
·1-10
·
IF 17.694
Liu Na,Li Qiaoqiao,Wan Hujie,Chang Libo,Wang Hao,Fang Jianhua,Ding Tianpeng,Wen Qiye,Zhou Liujiang,Xiao Xu
Although Ti 3 C 2 T x MXene is a promising material for many applications such as catalysis, energy storage, electromagnetic interference shielding due to its metallic conductivity and high processability, it’s poor resistance to oxidation at high temperatures makes its application under harsh environments challenging. Here, we report an air-stable Ti 3 C 2 T x based composite with extracted bentonite (EB) nanosheets. In this case, oxygen molecules are shown to be preferentially adsorbed on EB. The saturated adsorption of oxygen on EB further inhibits more oxygen molecules to be adsorbed on the surface of Ti 3 C 2 T x due to the weakened p-d orbital hybridization between adsorbed O 2 and Ti 3 C 2 T x , which is induced by the Ti 3 C 2 T x /EB interface coupling. As a result, the composite is capable of tolerating high annealing temperatures (above 400 °C for several hours) both in air or humid environment, indicating highly improved antioxidation properties in harsh condition. The above finding is shown to be independent on the termination ratio of Ti 3 C 2 T x obtained through different synthesis routes. Utilized as terahertz shielding materials, the composite retains its shielding ability after high-temperature treatment even up to 600 °C, while pristine Ti 3 C 2 T x is completely oxidized with no terahertz shielding ability. Joule heating and thermal cycling performance are also demonstrated.
研究领域:
材料科学
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纳米技术
·
表面化学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF POROUS MATERIALS
·
2025
·
IF 3.2
Zhan Chao,Lu Qingchen,Jiang Haoyu,Lu Huidan,Liu Yongping
Silica aerogel, renowned for its ultra-low thermal conductivity, holds significantpotential as an advanced thermal insulation material. However, its practical application is hindered by limitations in strength and mechanical properties, particularly under harsh, high-temperature conditions, which compromise both mechanical resilience and insulation. To mitigate this, we synthesized silica nanofibers via electrostatic spinning and subsequently crafted thermally and mechanically robust cellulose fiber/silica nanofiber aerogel composites through freeze-drying. The resulting aerogel demonstrates remarkable physical properties: an ultra-lightweight bulk density of 1.3 mg/cm³, low thermal conductivity (47 mW·m⁻¹·K⁻¹ at 1000 °C), and high resilience. The internal fiber network is densely cross-linked, enhancing collapse resistance, structural stability, and rigid support. Mechanical testing revealed a high stress of 0.88 kPa at 80% compressive strain, which reached 1.02 kPa following 900 °C treatment. Thermal stability and insulation tests demonstrated the aerogel’s ability to withstand extreme temperatures (no combustion under a 1,300 °C flame) and maintain effective thermal insulation while retaining good recovery at 600 °C. These findings indicate that the novel aerogel composites surpass traditional ceramic fiber aerogel materials in mechanical and thermal insulation properties at high temperatures, presenting widespread application potential in extreme high-temperature environments.
研究领域:
材料科学
·
热能工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Xianlu Lu,Dongdong Zhang,Jiang Zhong,Lin Wang,Lan Jiang,Qiao Liu,Gang Shao,Dingfa Fu,Jie Teng,Weiyou Yang
Among the families of modern energy storage devices, the potassium-ion batteries (PIBs) are emerging as a shining star with desired high energy density and interesting commercial application prospect. However, they still encounter the big question with intrinsically bad cycle stability, especially under high-temperature working conditions. In this work, we report the progress on exploring high-temperature PIBs with ultrahigh stability, based on metal organic framework-5 (MOF-5) as anode materials. At the fixed working temperature of 62.5 °C, the as-constructed PIBs have initial discharge and charge specific capacities of respective ∼ 1183 and 210 mA h g −1 at a current density of 200 mA g −1 , and hold a specific capacity of 160 mA h g −1 with a low decay of 0.15% per cycle over 150 cycles. Even at a high current density of 500 mA g −1 , they deliver a reversible specific capacity of 56 mA h g −1 with a tiny decay of 0.018% per cycle over 3000 cycles, which is the state-of-the-art one among those of high-temperature PIBs ever reported. The energy storage mechanism based on C O bond as the redox center is proposed.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Yongshuai Xie,Lin Wang,Ying Peng,Dehua Ma,Luyi Zhu,Guanghui Zhang,Xinqiang Wang
At high temperatures, lightweight ceramic and aerogel materials have serious problems such as volume shrinkage, increased density, loss of flexibility, and decreased thermal insulation performances. The research on high-performance, lightweight, and flexible materials, which can meet the requirements of high-temperature applications, is a challenging topic in the industry. In this work, we developed a defective fluorite phase Y 2 Zr 2 O 7 flexible fibrous membrane (YZFM) material which has excellent thermal stability, no phase change until 1200 °C, and excellent flexibility until 1200 °C. The dense single fiber structure results in the tensile strength of the YZFM as high as 8.27 MPa. The low density (44 mg/cm 3 ), high porosity (99.2%), and excellent heat radiation reflectivity (750–2500 nm: Avg. 96.34%) endow the YZFM with outstanding thermal insulation performance (the thermal conductivity: 38 mW m −1 K −1 ). The 30 mm thick YZFM can reduce the high temperature of 1260 °C to 185 °C. The anisotropic layered structure makes YZFM have better acoustic absorption performance than commercial materials. These robust performances make our YZFM suitable for fields with strict requirements on material usage conditions, such as aerospace and cutting-edge industries.
研究领域:
材料科学
·
工程热物理
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2019
·Vol. 9
·期 37
·21566-21571
·
IF 3.049
Weihua Zou,Delin Sun,Zhangheng Wang,Ruoyao Li,Wenxuan Yu,Pingfang Zhang
Farmed poplar could meet the human demand for transparent wood-based composites to replace glass, avoiding the consumption of natural forest resources. We removed the lignin of poplar using a potassium hydroxide (KOH) and deionized water solution, the waste black liquor could be converted into compound potassium fertilizer after being neutralized by phosphoric acid. Polyurethane (PU) was then added to the lignin-stripped poplar and hardened, the transparent poplar-based composite (TPC) has stable transparency at high temperatures, and flexibility – it elongates (about 15%) before breaking. These properties could provide more uses in hot environments requiring a flexible shape. The TPC PU provides transmittance of 85%, haze of 83%, and anisotropic light diffraction.
研究领域:
材料科学
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林业工程
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2017
·
IF 2.986
Chonghe Xu,Kangkang Yuan,Xiaotong Jin,Zhichao Yu,Lei Zheng,Yadong Lü,Xinqiang Wang,Luyi Zhu,Guanghui Zhang,Dong Xu
MgO nanofiber with good morphology was difficult to obtain through high temperature heat-treatment due to the widely existed pulverization phenomenon, which restricted its applications in the high-temperature field. In this work, MgO nanofibers were prepared by electrospinning through mixed precursors: magnesium acetate (MA) and magnesium citrate (MC). The fiber with MC mass content in the range of 30–50% exhibited good high-temperature stability and the original feature was preserved after heat-treated at 1000 °С. A plausible formation mechanism of the polycrystalline MgO nanofibers was provided in the present paper. Suitable confection of MA and MC brought a milder decomposition process and led to a more compact structure of MgO nanofiber, which contributed to the excellent high-temperature stability. The considerable effects of microstructure on thermal conductivity of the fiber were discussed. The method in this paper has greatly expanded the solution scope for preparing electrospun fibers with expectation of structure modification and strength enhancement.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Li Feng,Yinghao Zhang,He Zhou,Yiyang Kang,Shuohao Zhang,Lixia Bao,Jingxin Lei,Longchun Bian,Jiliang Wang
Nanoencapsulated phase change materials (NPCMs) have attracted much attentions during the past decades due to their large potential application in the sectors of solar energy harvesting, waste heat recovery, and smart buildings and fibers. However, it is still a big challenge to obtain form-stable NPCMs without leakage at high temperature (e.g. 180 ℃) and under external shear force. Form-stability investigations of almost of the reported NPCMs focus on the temperature range up to 100 ℃, which cannot satisfy the thermal processing requirements (140–200 ℃ under shear force) of commonly available thermoplastics like poly(vinyl chloride) and poly(lactic acid). We herein for the first time demonstrate a facile method to prepare a series of novel room temperature NPCMs with the latent heat up to 116.1 J g −1 and fabulous form-stability even if the surrounding temperature approximates 180 ℃ under an external shear force of 101.9 kN m −2 . To this aim, quasi-monodispersed NPCMs with the average size less than 120 nm were prepared, wherein dodecanol and in-situ cross-linked acrylate copolymers were used as the heat storage core and the supramolecular lock shell layer of the NPCMs, respectively. Storage reliability, morphology, phase change behaviors, and form-stability at different conditions of the resulting NPCMs were extensively evaluated. The fabricated NPCMs exhibit outstanding monodispersity and form-stability at high temperature and under shear force, and probably opens a new avenue to develop functional thermoplastic and/or thermosetting composites for the next generation of smart building, furniture, and decoration materials with a promising heat energy storage and release ability.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Qiyan Ji,Li Zhang,Xiuling Jiao,Dairong Chen
Alumina aerogels are desirable for lightweight and highly efficient thermal insulation. However, they are typically constrained by brittleness and structural collapse at high temperatures. The manufacture of alumina aerogels with ultralow thermal conductivity and excellent thermal stability at high temperatures beyond 1300 °C is still challenging. Herein, alumina aerogels with superior ultrahigh-temperature-resistant and thermal insulation were successfully prepared by assembling the α-Al2O3 nanosheets with silica sols as the high-temperature binders. Benefiting from the generation of the mullite-covered alumina biphasic structure, the α-Al2O3 nanosheet-based aerogels (ANSAs) exhibit excellent thermal and chemical stabilities even after calcination at as high as 1600 °C. The ANSAs had a low thermal conductivity (0.029 W·m–1·K–1 at room temperature), structural stability with a measured compressive strength of 0.6 MPa, and good thermal shock resistance. Furthermore, the 2D α-alumina@mullite core–shell sheets were also prepared as assembly units to construct aerogels (AMSAs). This core–shell structure can improve temperature resistance through inter-lattice suppression under continuous energy input at high temperatures. The AMSAs have a linear shrinkage of only 2.7% after calcination at 1600 °C for 30 min, further improving the temperature resistance, making them an ideal super-insulating material for applications at extremely high temperatures.
研究领域:
材料科学
·
热力学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Zhezhe Deng,Ying Peng,W.W. Qin,Benxue Liu,Guanghui Zhang,Xinqiang Wang,Yongshuai Xie,Luyi Zhu,Dong Xu
Single-component oxide fibers encounter various issues, including grain transition growth and mechanical property degradation at high temperatures, which restrict their potential usage for high-temperature applications. The unique properties of high-entropy materials, including lattice distortion, sluggish diffusion, and cocktail effects, can effectively maintain small grains and excellent mechanical properties even in extreme conditions. Therefore, developing high-entropy oxide fibers provides a dependable solution to address the issues associated with single-component fibers. This paper successfully obtained the (Zr 0.2 Hf 0.2 Ti 0.2 Gd 0.2 Y 0.2 )O 2-δ (ZHTGY) high-entropy oxide fibers by commencing from molecular design. Compared to other high entropy oxide materials, ZHTGY fibers exhibit a low crystallization temperature of 700 °C and exceptional high-temperature stability with no phase changes observed from RT to 1500 °C. In addition, the ZHTGY fiber membranes exhibit a density of merely 33 mg·cm −3 , a tensile strength of 2.73 MPa@1000 °C, excellent flexibility, knot-free and fold-free properties, as well as the ability to bend freely even in environments with butane flame or liquid nitrogen. The ZHTGY fiber membranes have excellent thermal insulation properties due to their ultra-low density and high-temperature structural stability. With a thermal conductivity of only 25.7 mW·m −1 K −1 , an 8 mm thick sample laminated with these fiber membranes can reduce the temperature of a 1370 °C heat source to just 320 °C. The fiber membranes maintain good flexibility and strength even after heat treatment at 1200 °C for 50 h and 1400 °C for 180 s. This study provides a novel approach for preparing high-entropy oxidation fibers, thereby enabling the development of lightweight high-temperature thermal protection materials.
研究领域:
材料科学
·
高温材料
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）