Results 81 to 90 of about 37,074 (308)

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Desulfurization kinetics and mineral phase evolution of bauxite water slurry (BWS) electrolysis

, 2015
The desulfurization kinetics and mineral phase evolution from bauxite water slurry (BWS) electrolysis were examined. The results showed that the desulfurization ratio in NaCl system increased with current density, and reached up to 96% at 0.22 A/cm(2).
Gong, Xuzhong, Wang, Zhi, Zhuang, Siyuan, Wang, Mingyong, Ge, Lan   +4 more
core   +1 more source

Engineering Ru-based electrocatalysts for efficient electrocatalytic water splitting

Nano Research
Electrolysis of water splitting is a clean and sustainable method for hydrogen production without the consumption of fossil fuels or the emission of carbon dioxide.
Ke Zhang, Kang Wang, Shimin Chai, Luyao Wang, Hongying Luo, Yanyan Liu, Yongfeng Wang, Jianchun Jiang, Baojun Li   +8 more
doaj   +1 more source

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

Advanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee, Yun‐Tae Kim, Hwarang Choi, Sanghwan Park, Seongyeop Lim, Chang Young Lee   +5 more
wiley   +1 more source

Anion-Exchange-Membrane Electrolysis with Alkali-Free Water Feed [PDF]

Hydrogen is a green and sustainable energy vector that can facilitate the large-scale integration of intermittent renewable energy, renewable fuels for heavy transport, and deep decarbonization of hard-to-abate industries.
Twight, Liam, Kwak, Minkyoung, Yassin, Karam, Dekel, Dario, Ficca, Valerio CA, Santoro, Carlo, Noto, Vito Di, Muhyuddin, Mohsin, Osmieri, Luigi, Konovalova, Anastasiia, Boettcher, Shannon W, Di Noto, Vito, Atanassov, Plamen, Boettcher, Shannon, Pagot, Gioele, Jaouen, Frédéric, Negro, Enrico, Ficca, Valerio C.A., Elbaz, Lior, Mustarelli, Piercarlo, Lavacchi, Alessandro, Berretti, Enrico, Lindquist, Grace, Dekel, Dario R, Friedman, Ariel   +24 more
core   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Cooperative dynamics of didodecyldimethylammonium bromide / water / n-dodecane microemulsions: a dielectric relaxation study

, 2008
A systematic study of the dielectric relaxation spectra of W/O (water-in-oil) microemulsions composed of didodecyldimethylammonium bromide (DDAB), water (W) and n-dodecane (D) has been made over the whole stability region in the phase diagram and over a ...
Wachter, Wolfgang
core   +1 more source

Stable overall water splitting in an asymmetric acid/alkaline electrolyzer comprising a bipolar membrane sandwiched by bifunctional cobalt‐nickel phosphide nanowire electrodes

Carbon Energy, 2020
Water splitting has been proposed to be a promising approach to producing clean hydrogen fuel. The two half‐reactions of water splitting, that is, the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), take place kinetically fast in ...
Junyuan Xu, Isilda Amorim, Yue Li, Junjie Li, Zhipeng Yu, Bingsen Zhang, Ana Araujo, Nan Zhang, Lifeng Liu   +8 more
doaj   +1 more source

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

Advanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen, Chi Cong Nguyen, Tran Bach Dang, Phuoc Thien Phan, Jordan Thorpe, Michael Listyawan, Nhat Minh Doan, Sinuo Zhao, Hongru Chen, Trung Thien Hoang, Mingsheng Xu, Jisheng Han, Thanh Nho Do, Adam Hill, Timothée Mouterde, Hoang‐Phuong Phan   +15 more
wiley   +1 more source