Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The development of efficient nonprecious metal catalysts for the alkaline hydrogen oxidation reaction (HOR) catalyst in alkaline anion-exchange membrane fuel cells (AEMFCs) is of great significance. Nickel-based catalysts are considered to be promising HOR catalysts. Here, we report the interfacial engineering of reduced graphene oxide-supported Ni and Ni-Mo bimetallic nitrides (Ni-NiMoN/rGO), which exhibit excellent catalytic activity of alkaline HOR. The electron transfer from Ni to NiMoN has been regulated to tune the electronic structure. Due to the interface effect between Ni and NiMoN, Ni-NiMoN/rGO exhibits enhanced HOR activity, with a high current density of 2.65 mA cm at an overpotential of 50 mV. Additionally, it demonstrates higher exchange current density (, 3.21 mA cm) and kinetic current density (, 10.35 mA cm), indicating fast kinetics and high intrinsic activity of Ni-NiMoN/rGO. Furthermore, detailed characterization results illustrate that due to the rational adsorption of hydrogen and hydroxyl groups by Ni-NiMoN/rGO, it possesses significant activity and durability. These research findings are of great importance for the development of more efficient alkaline HOR catalysts to promote the application of alkaline AEMFCs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsami.5c09850 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Optimal cerium microalloying enhances SASS/Q235 weld corrosion and antibacterial performance.
iScience
September 2025
State Key Laboratory of Advanced Marine Materials, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
Super austenitic stainless steels (SASS) face challenges like galvanic corrosion and antibacterial performance when welded to carbon steel (Q235) in marine environments. This study demonstrates that adding 1.0 wt% cerium (Ce) to SASS refines the heat-affected zone (HAZ) grain structure (from 7 μm to 2 μm), suppresses detrimental σ-phase precipitation, and forms a dense oxide film.
View Article and Find Full Text PDFDesign strategies for energy-harvesting photovoltaics in diverse environments.
iScience
September 2025
Energy Conversion Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon, Gyeongsangnam-do 51543, Republic of Korea.
Indoor photovoltaics (IPVs) are small and not optimized for versatile environments, making them environmentally sensitive. To expand the application of energy-harvesting photovoltaics, overcoming the current problems and mismatch loss is important. In this study, we found that IPVs are sensitive to changes in current density under low illuminance, and we introduced a protocol to reveal the modules resulting in the smallest standard deviation using current maps.
View Article and Find Full Text PDFControlling Chloride Crossover in Bipolar Membrane Water Electrolysis.
ACS Electrochem
September 2025
Department of Material Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.
Bipolar membranes (BPMs) are increasingly recognized as a promising electrolyte option for water electrolysis, attributable to their distinctive properties derived from the membrane's layered structure, which consists of an anion exchange (AEL) and a cation exchange layer (CEL). This study investigates four different BPMs and the influence they have on the performance of a water electrolysis cell under two different feed configurations: (1) a symmetric deionized water feed to both anode and cathode compartments and (2) an asymmetric feed with a 0.5 mol/L NaCl catholyte feed and a deionized water anolyte feed.
View Article and Find Full Text PDFNeighborhood clustering analysis to define epithelial-stromal interface for tumor infiltrating lymphocyte evaluation.
J Pathol Inform
November 2025
Pathology and Laboratory Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Rochester, NY 14642, USA.
Evaluation of tumor infiltrating lymphocytes as recommended by current guidelines is largely based on stromal regions within the tumor. In the context of epithelial malignancies, the epithelial region and the epithelial-stromal interface are not assessed, because of technical difficulties in manually discerning lymphocytes when admixed with epithelial tumor cells. The inability to quantify immune cells in epithelial-associated areas may negatively impact evaluation of patient response to immune checkpoint therapies.
View Article and Find Full Text PDFCrab shell polypeptides enhance calcium dynamics and osteogenic activity in osteoporosis.
Front Pharmacol
August 2025
Department of Genetics and Cell Biology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China.
Background: Osteoporosis (OP) is a chronic, systemic skeletal disorder characterized by progressive bone loss and microarchitectural deterioration, which increases fracture susceptibility and presents a challenging set of global healthcare problems. Current pharmacological interventions are limited by adverse effects, high costs, and insufficient long-term efficacy. Here, we identify snow crab shell-derived polypeptides (SCSP) as a potent osteoprotective agent.
View Article and Find Full Text PDF