Results 151 to 160 of about 19,512 (196)

Hydrogel Stack‐Tailored Logics and High‐Fidelity Multimodal Sensors Promoted by Precisely Evaluated Ionic Migration

Advanced Science, EarlyView.
Inspired by biological ion transport, this work introduces self‐powered multifunctional sensors utilizing tailored hydrogel stacks. Optimizing ionic migration with MXenes and carbon nanotubes achieves high‐performance energy harvesting and unique logic circuit functionality.
Haoran Chen, Hongjian Zhang, Zhonghui Shen, Taeuk Eom, Hyunseung Kim, Delong He, Jinbo Bai, Geon‐Tae Hwang, Yong Zhang, Chang Kyu Jeong   +9 more
wiley   +1 more source

Tailored D‐π Conjugation Boosts Piezocatalytic CO2 Reduction in a Platinum(II)‐Acetylide Framework

Advanced Science, EarlyView.
The highly conjugated metalII‐acetylide framework demonstrates efficient ultrasound‐driven conversion of CO2 to CO. The piezoelectric field generated by ultrasound facilitates electron transfer from the tetraphenylene π‐column to the MII‐bis(acetylide) moiety, enabling CO2 activation. Compared to PdII‐ and NiII‐based analogues, the stronger d–π orbital
Mude Zhu, Yingtang Zhou, Kai Wang, Xiaoyun Fan, Yang Ding, Wai‐Yeung Wong, Linli Xu   +6 more
wiley   +1 more source

Beyond Electrostatics: Anion‐π+ Orbital Hybridization Underpins High‐Performance Chloride Storage in Poly(arylamine) Organic Cathodes

Advanced Science, EarlyView.
The fundamental nature of anion storage in p‐type organic cathodes is elucidated using rigid poly(arylamine) frameworks. This study reveals a hybrid covalent‐ionic mechanism for anion‐π+ interactions, driven by synergistic orbital hybridization and electrostatic attraction.
Tiantian She, Jiena Weng, Jie Wang, Qiao Xi, Yangyang Zhang, Zijie Zhang, Zongqiong Lin, Wei Huang   +7 more
wiley   +1 more source

A Periosteum‐Inspired Janus Piezoelectric Scaffold Using Bioenergetic‐Driven H‐Type Vascularization for Diabetic Bone Regeneration

Advanced Science, EarlyView.
A periosteum‐inspired Janus piezoelectric scaffold converts micromechanical forces into electrical signals and synergizes with controlled resveratrol release. This dual action reprograms endothelial metabolism, drives H‑type vessel formation, and restores bone–vessel coupling in diabetic bone defects.
Kai Wang, Kai Jiang
wiley   +1 more source

Supercritical CO2‐Induced Porous MXene Films for Electromagnetic Interference Shielding and Infrared Stealth

Advanced Science, EarlyView.
The phase transition of supercritical CO2 induces the foaming of dense MXene film without compromise inherent structure of MXene nanosheet. The foamed porous MXene film manifests remarkable EMI shielding and infrared thermal camouflage performances. Moreover, the foaming strategy is broadly adaptable and can be extended to other two‐dimensional films ...
Hui Zhao, Shuai Li, Jiabei He, Tong Gao, Jingfeng Wang, Dongxiao Kan, Wangtu Huo, Lixin Chen   +7 more
wiley   +1 more source

Thermally Processable, Transparent, Mechanically Tunable and Robust Bioplastics From Wastepaper

Advanced Science, EarlyView.
Unlike conventional inefficient or low‐value wastepaper recycling, a directional transformation strategy is employed to convert whole wastepaper into intact bioplastics with tunable mechanical properties in our work. These bioplastics can be processed into flexible bags or rigid containers and exhibit high transparency, water resistance, repairability,
Zhezhe Zhou, Tao Chu, Boyou Hou, Mark Lynch, Siqi Huo, Min Hong, Jianguo Yang, Paulomi (Polly) Burey, Qiang Gao, Guobo Huang, Pingan Song   +10 more
wiley   +1 more source

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Quenching of 6s6d and 6s7d Hg atoms by Hg*-Hg, Hg*-Ar and Hg*-N2 collisions

Journal of Quantitative Spectroscopy and Radiative Transfer, 1986
Abstract The radiative decays and collisional quenching of Hg 61D2, 63D2, 71D2 and 73D2 atoms were investigated by time-resolved methods. Hg vapour, pure or mixed with a buffer gas in a fluorescence cell, was irradiated with u.v. light pulses from a frequency-doubled N2 laser-pumped dye laser, populating selectively each state in turn by 2-photon ...
M. Darrach, R.J. Niefer, J.B. Atkinson, L. Krause   +3 more
openaire   +1 more source

Absorption spectroscopy on Hg+ and excited Hg in Hg-Ar discharges

Applied Physics Letters, 1990
We describe an absorption spectroscopy experiment at 194 nm on Hg+, ground-state atomic mercury ions, and at visible wavelengths on Hg*, excited 63Po mercury atoms in Hg-Ar discharges. This experiment is used to map the absolute density of Hg+ and Hg* in the cathode region of Hg-Ar discharge lamps operated in the hot-cathode mode.
R. C. Wamsley, J. E. Lawler, J. H. Ingold, L. Bigio, V. D. Roberts   +4 more
openaire   +1 more source

Mercury (Hg) in the “Skin” of the Ocean: Dissolved Gaseous Hg, Total Hg, and Hg Redox Chemistry in Sea Surface Microlayer and Implication for Air–Sea Hg Exchange

Environmental Science & Technology, 2023
The sea surface microlayer (SML) is the uppermost ∼1000 μm of the surface of the ocean. With distinct physicochemical properties and position relative to the adjacent subsurface waters (SSWs), the ubiquitous distribution and high dynamics of the SML greatly regulate the global air-sea gas exchange and biogeochemistry.
Zhijia Ci, Xiong Tang, Wenjie Shen, Baowei Chen   +3 more
openaire   +2 more sources

Reduction of Hg(II) to Hg(0) by Magnetite

Environmental Science & Technology, 2009
Mercury (Hg) is a highly toxic element, and its contamination of groundwater presents a significant threat to terrestrial ecosystems. Understanding the geochemical processes that mediate mercury transformations in the subsurface is necessary to predict its fate and transport. In this study, we investigated the redox transformation of mercuric Hg (Hg[II]
Heather A, Wiatrowski, Soumya, Das, Ravi, Kukkadapu, Eugene S, Ilton, Tamar, Barkay, Nathan, Yee   +5 more
openaire   +2 more sources