Results 121 to 130 of about 8,281 (249)

Zirconium carbide as an electrocatalyst for the chromous-chromic redox couple [PDF]

, 1981
Zirconium carbide is used as a catalyst in a REDOX cell for the oxidation of chromous ions to chromic ions and for the reduction of chromic ions to chromous ions.
Gahn, R. F., Reid, M. A., Yang, C. Y.
core   +1 more source

Engineering Metastability in Atomic Layer Deposition: Polymorph and Valence Control

Small, EarlyView.
This work presents strategies for stabilizing two types of metastable phases: structural polymorphs and multivalence states via ALD. These approaches focus on lowering the energy barriers required for metastable phase formation, enabling access to metastable states beyond the thermodynamic limits imposed by the low‐temperature conditions of ALD.
Jihoon Jeon, Seung Ho Ryu, Seungwan Ye, Gwang Min Park, Seong Keun Kim   +4 more
wiley   +1 more source

A Novel Supercapacitor with Integrated Photosensitive Electrode to Enhance Its Capacitance Under Solar Light

Small, EarlyView.
In this research we demonstrated that the energy density of supercapacitors can be enhanced at about 50% by generating extra charge through the use of a photosensitive cell coupled to the supercapacitor estructure. ABSTRACT This research reports a supercapacitor (SC) made with a photosensitive electrode (composed of LaFe0.94V0.01Mn0.05O3 (V‐LFO ...
Luis Ojeda, Luis A. Garcés‐Patiño, Karinjilottu Padmadas Padmasree, Arturo Isaias Mtz‐Enriquez, Martha Paniagua‐Chavez, Yael Bedolla, Vicente Rodriguez‐Gonzalez, Jorge Oliva   +7 more
wiley   +1 more source

Determining Diffusion Coefficients in Polymer Electrolyte Membranes With Lab Based Micro X‐Ray Fluorescence Analysis: A Proof of Concept

X-Ray Spectrometry, EarlyView.
ABSTRACT The diffusion of metal ions in polymer electrolyte membranes is an important parameter for aging and capacity loss in electrochemical cells. Here, the diffusion coefficients of vanadium ions in Nafion membranes are studied. These are important to describe transportation of the ions through the membrane separator in vanadium redox flow ...
Frithjof Mähler, Sven Hampel, Ursula E. A. Fittschen   +2 more
wiley   +1 more source

High‐Entropy 2D MXenes: A New Paradigm for Energy Storage

Battery Energy, Volume 5, Issue 2, March 2026.
This review reports the evolution and advancements in high‐entropy MXene materials, highlighting their structural diversity (M1–M6) and transformative potential for energy and electronic applications. By integrating historical insights with recent breakthroughs, this review highlights the role of compositional complexity in optimising functional ...
Hafiz Taimoor Ahmed Awan, Ahmed A. Aboalhassan, Muhammad Amirul Aizat Mohd Abdah, Muhammad Norhaffis Mustafa, Norshahirah Mohamad Saidi, Rashmi Walvekar, Mohammad Khalid   +6 more
wiley   +1 more source

Decoupling H_2(g) and O_2(g) Production in Water Splitting by a Solar-Driven V^(3+/2)+(aq,H_2SO_4)|KOH(aq) Cell [PDF]

, 2019
A solar-driven V^(3+/2+)(aq,H_2SO_4)|KOH(aq) cell, consisting of a carbon-cloth cathode in 2.0 M H_2SO_4(aq) with 0.36 M V_2(SO_4)_3 (pH −0.16), a Ni mesh anode in 2.5 M KOH(aq) (pH 14.21) for the oxygen-evolution reaction (OER), and a bipolar membrane ...
Han, Lihao, Ho, Alec, Karp, Christoph, Lewis, Nathan S., Sullivan, Ian, Xiang, Chengxiang, Zhou, Xinghao   +6 more
core   +1 more source

Encapsulating Zinc Powder in MXene/Silk Scaffolds with Zincophilic‐Hydrophobic Polymer for Flexible Zinc‐Ion Batteries

Advanced Functional Materials, Volume 36, Issue 10, 2 February 2026.
This work develops flexible zinc‐ion batteries (FZIBs) using a zincophilic/hydrophobic polymer (thermoplastic polycarbonate‐based polyurethane, TPCU) to protect Zn powder anodes and MXene/Silk (MXS) as flexible current collectors. The designed TPCU‐ZnP@MXS structure enables uniform Zn deposition, yielding dendrite‐free anodes with stable cycling ...
Zixuan Yang, Zhiyu Wang, Junlun Cao, Han Wang, Weiwei Lei, Jingliang Li, Joselito M. Razal, Xungai Wang, Dan Liu   +8 more
wiley   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Stabilizing Frustrated Phase Transitions in Selective Oxidation Reactions

Advanced Materials, Volume 38, Issue 8, 6 February 2026.
Using multimodal operando spectromicroscopy, the frustrated phase transition responsible for selective oxidation over cobalt oxide spinel catalysts is identified, corresponding to combined surface reaction and Mars‐van Krevelen (MvK) dynamics. This regime is disrupted by the formation of mobile vacancies and the depletion of active oxygen at high ...
Luis Sandoval‐Diaz, Thomas Götsch, Daniel Cruz, Maurits Vuijk, Juan M. Lombardi, Markus Pietsch, Kassiogé Dembélé, Adnan Hammud, Karsten Reuter, Christoph Scheurer, Axel Knop‐Gericke, Thomas Lunkenbein   +11 more
wiley   +1 more source

Ion‐Regulating Membranes with Surface‐Enriched Charge Networks Enabling Stable Zinc‐Manganese Flow Batteries

Advanced Materials, Volume 38, Issue 9, 12 February 2026.
An ion‐regulating membrane is designed with a surface‐concentrated positively‐charged Zn2⁺ crosslinked network for zinc‐manganese flow batteries. The membrane effectively mitigates proton crossover and regulates zinc ion distribution to avoid dendrites, thus significantly improving areal capacity and prolonging the lifespan with a record accumulated ...
Jine Wu, Jiafeng Lei, Yi‐Chun Lu
wiley   +1 more source