Results 101 to 110 of about 102,266 (349)

Unleashing the Power of P‐N Heterojunctions: Optimizing Water Electrolysis Efficiency Through a Cathode‐Driven Electrocatalyst Synergy

Advanced Science, EarlyView.
This groundbreaking contribution to water electrolysis demonstrates that MoSe2/PANI electrocatalysts with a P–N heterojunction effectively balance the overall electrolysis reaction as the cathode, enhance anode performance, and achieve high‐efficiency, low‐energy, simultaneous hydrogen and oxygen production, revealing that the P–N heterojunction ...
Kumasser Kusse Kuchayita, Wei‐Nien Su, Chih‐Chia Cheng   +2 more
wiley   +1 more source

Bottom‐Up Coacervate‐Based Artificial Cells: Integrating Cellular Hallmarks into Complex Life‐Like Systems

Angewandte Chemie, EarlyView.
Current interest in artificial cell research underscores its potential to deepen our understanding of life's fundamental processes. This review highlights advances in bottom‐up coacervate‐based artificial cell engineering via combined integration of cellular hallmarks.
Arjan Hazegh Nikroo, Angshuman Das, Madelief A. M. Verwiel, Jan C. M. van Hest   +3 more
wiley   +2 more sources

Comprehensive optimization of an integrated energy system for power, hydrogen, and freshwater generation using high-temperature PEM fuel cell

Case Studies in Thermal Engineering
Modern energy conversion technologies with low or no emissions are needed to achieve sustainable development goals. This research examines the thermodynamic and exergy-economic features of a high-temperature proton exchange membrane fuel cell.
Soheil Gharibzadeh, Roghayyeh Motallebzadeh, Samad Jafarmadar, Abdulsalam Ebrahimpour   +3 more
doaj   +1 more source

Transient analysis of proton electrolyte membrane fuel cells (PEMFC) at start-up and failure [PDF]

, 2007
A two-dimensional, transient, single-phase computational model, incorporating water transport in the membrane and the flow and transport of species in porous gas diffusion electrodes is developed to evaluate the transient performance of a PEMFC with ...
Benziger, Berg, Bernardi, Bernardi, Curtiss, Dutta, Fales, Friede, He, He, Hu, Hu, Kazim, Kim, Marr, Nguyen, Nguyen, Okada, Pasaogullari, Sivertsen, Springer, Stockie, Wang, Wang, West, Yi   +25 more
core   +1 more source

Recent Advances and Challenges in Ammonia‐Hydrogen Energy Conversion

Advanced Science, EarlyView.
This work summarizes the latest progress of various catalytic methods in ammonia‐hydrogen energy conversion. The challenges and outlook of ammonia‐hydrogen energy conversion system are also emphasized. This work expects to build a blueprint of renewable and efficient ammonia‐hydrogen energy conversion systems under mild conditions.
Menghao Lv, Runchao Qin, Jianshuo Chen, Kaiwen Yang, Jianwei Lu, Weiwei Lei, Yifu Yu   +6 more
wiley   +1 more source

T‐Cell Exhaustion in the Tumor Microenvironment: Subcellular Dysfunction, Pan‐Cancer Characteristics, and Therapeutic Interventions

Advanced Science, EarlyView.
This study elucidates the mechanisms of subcellular multidimensional collapse in exhausted T cells. By specifically targeting the nucleus, mitochondria, and endoplasmic reticulum, strategic interventions can effectively remodel the compromised organelle network. This integrated approach drives comprehensive T cell resuscitation, ultimately establishing
Mingxing Wang, Wanhui Dong, Jian Chen, Zhangjie Zhou, Shujuan Fu, Tingting Wu, Haiyan Jiang, Zhiying Wang, Zhixian Zhong, Yi Zhong   +9 more
wiley   +1 more source

Multi‐Objective Catalyst Discovery in High‐Entropy Alloy Composition Space: The Role of Noble Metals on the Pareto Front for Oxygen Reduction Reaction

Angewandte Chemie, EarlyView.
Pareto optimal compositions of alloy catalyst for oxygen reduction reaction are uncovered through multi‐objective Bayesian optimization of activity, stability, and material cost in an eight‐element high‐entropy alloy composition space. The substantial Pareto front obtained is compared to experimental literature and analyzed to elucidate the roles and ...
Mads K. Plenge, Ahmad Tirmidzi, Christian M. Clausen, Matthias Arenz, Jan Rossmeisl   +4 more
wiley   +2 more sources

Along-the-channel modeling and analysis of PEFCs at low stoichiometry: Development of a 1+2D model [PDF]

, 2019
Water management remains a key challenge in polymer-electrolyte fuel cells. In this work, a pseudo 3-D (1+2D) model is developed to account better for changes of water management along the channel, as well as verify the possibilities of using ...
Borup, RL, Gerhardt, MR, Macauley, N, Mukundan, R, Pant, LM, Weber, AZ   +5 more
core  

Modeling and simulations of deformation and transport in PEM fuel cells [PDF]

, 2008
Performance degradation and durability of PEM fuel cells depend strongly upon transport and deformation characteristics of their components especially the polymer membrane.
Yesilyurt, Serhat, Yeşilyurt, Serhat
core   +1 more source

V2CTx MXene as a Sacrificial Promoter for NiFe Catalyst for Anion Exchange Membrane Electrolyzers

Advanced Science, EarlyView.
These findings demonstrate that V2CTx functions beyond passive conductive support as an active electronic participant whose structural legacy sustains durable performance even after vanadium leaching in Anion Exchange Membrane (AEM) Electrolysers. ABSTRACT Nickel‐iron layered double hydroxides (NiFe‐LDH) show excellent activity, their poor conductivity
Bastian Schmiedecke, Can Kaplan, Karuppasamy Dharmaraj, Axel Zuber, Merve Buldu‐Aktürk, Ningjun Chen, Mailis Lounasvuori, Xuyun Guo, Valeria Nicolosi, Thorsten Schultz, Norbert Koch, Johanna Rosen, Michelle P. Browne   +12 more
wiley   +1 more source