Results 101 to 110 of about 57,794 (339)

Full‐Spectrum Solar Harvesting and Desalination Enabled by Supra‐Nano Amorphous Ruthenium Dioxide – Mineral Composites

Advanced Functional Materials, EarlyView.
A mineral‐based supra‐nano amorphous ruthenium dioxide composite (a‐Ru0.5‐AM) was designed, achieving 97% broadband solar absorption. Under one sun, it reaches 87.91 ± 0.32 °C with a distinct thermal buffering effect that favors thermal confinement.
Yunchen Long, Zhengyi Mao, Bowen Li, Xiujuan Hu, Xinxue Tang, Yuanchao Liu, Jia‐Hua Liu, Hongkun Li, Chong Wang, Hong Yue, Weihui Ou, Johnny Chung Yin Ho, Jian Lu, Yang Yang Li   +13 more
wiley   +1 more source

A review on carbonation in cement composites and its impacts on durability and potential for CO₂ sequestration

Journal of Materials and Engineering Structures
Carbonation is a key process affecting the durability, strength, and environmental impact of concrete. While it refines pore structure and enhances strength, it also lowers alkalinity, leading to reinforcement corrosion risks.
Aijaz Hussain BHAT, Shashi Kant SHARMA
doaj  

Evaluation of ultrasonication and carbonation-ultrasonication assisted convective drying techniques for enhancing the drying rates and quality parameters of ripe and raw banana (Musa) peel

, 2022
Mandeep Kaur, V.K. Modi, Harish Sharma
openalex   +2 more sources

Evolution of microstructure and transport properties of cement pastes due to carbonation under a CO2 pressure gradient: a modeling approach [PDF]

, 2015
Most carbonation models only account for diffusion as the main transport mechanism rather than advection. Nevertheless, in the case of concrete used for underground waste disposal facilities, concrete may be subjected to a high hydrostatic pressure and ...
De Schutter, Geert, Jacques, Diederik, Maes, Norbert, Phung, Quoc Tri, Ye, Guang   +4 more
core   +1 more source

Electrochemical Formation of BiVO4/BiPO4 Photoanodes for Enhanced Selectivity toward H2O2 Generation

Advanced Functional Materials, EarlyView.
In acidic KPi, V dissolves from the BiVO4 lattice, while adsorbed phosphate reacts with the electrode under an external bias, forming a BiPO4 surface layer. This BiPO4 layer exhibits stronger bicarbonate adsorption, redirecting the water oxidation pathway toward two‐electron H2O2 production.
Kaijian Zhu, Xinyi Zhang, Lan Wen, Hongjiang Chen, Yudhistira Tirtayasri Amrillah, Vivi Fauzia, Hongzhen Dong, Shaoqiang Su, Wenjun Luo, Ferry Anggoro Ardy Nugroho, Patrick H.‐L. Sit, Yun Hau Ng, Fatwa F. Abdi   +12 more
wiley   +1 more source

Determination of carbon-carbon connectivities, assignment of quaternary carbons, and extraction of carbon-carbon coupling constants by carbon-relayed hydrogen-carbon spectroscopy

Journal of Magnetic Resonance (1969), 1985
Nowadays many possibilities exist to elucidate carbon-carbon connectivity. In hydrogen-bearing carbon systems C-C connectivities can be traced out most conveniently in an indirect way by a combination of H-H COSY (I) and H-C CQSY (2). In case of overlapping ‘proton signals ambiguities can be removed by heteronuclear relayed spectroscopy (3) and ...
Kessler, Horst, Bermel, W., Griesinger, Christian   +2 more
openaire   +2 more sources

A Scanning Transmission X-ray Microscopy Study of Cubic and Orthorhombic C₃A and Their Hydration Products in the Presence of Gypsum. [PDF]

, 2016
This paper shows the microstructural differences and phase characterization of pure phases and hydrated products of the cubic and orthorhombic (Na-doped) polymorphs of tricalcium aluminate (C₃A), which are commonly found in traditional Portland cements ...
Chae, Sejung Rosie, Geng, Guoqing, Kirchheim, Ana Paula, Monteiro, Paulo JM, Rheinheimer, Vanessa, Rodríguez, Erich D   +5 more
core   +3 more sources

Precursor Mineral Phases of Forming Mollusk Shell Nacre: A Study of Hydrated Samples

Advanced Functional Materials, EarlyView.
Mineral, organic phase, and water are the essential components in mollusk shell nacre formation. Their interplay is not well understood, because the hydrated material is difficult to observe at high resolution, under close to native conditions. Forming nacre is studied using environmental and cryo‐electron microscopy and hydrated ACC phases, together ...
Anna Kozell, Xiao‐Meng Sui, Neta Varsano, Stephen Weiner, Lia Addadi   +4 more
wiley   +1 more source

Carbonization test and orthogonal polynomial regression analysis of steel fiber reclaimed concrete

Heliyon
To enhance the carbonation resistance of reclaimed concrete, several key factors affecting its performance were investigated. An orthogonal array L16(4³ × 2⁶) was employed to design the carbonation tests for steel fiber (SF) reinforced concrete.
Yahong Ding, Zhongcai Lin, Chunling Yan, Biaowei Sang, Longbo Yang   +4 more
doaj   +1 more source

Cellulose carbon-CVD carbon composites

Carbon, 1975
Carbon-carbon composites have been fabricated using a cellulose powder which is molded at low pressures, carbonized at 800°C and infiltrated by a CVD technique at 700°C using propylene as a source of carbon. Infiltration rate at time t is governed by the amount of open porosity existing in the sample at this time.
S. Marinkovic, P.W. Whang, A. Navarrete, P.L. Walker   +3 more
openaire   +2 more sources