Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A catalytic redox-cycling nanoreactor enables robust oxidative stress amplification for synergistic tumor apoptosis and ferroptosis.

Acta biomaterialia·2026
Same author

Unraveling Oral Fate of Poly(Lipoic Acid)s: Mechanistic Insights and Delivery Horizons.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Intergenerational associations of depression and anxiety among adult mother-daughter dyads in China.

European psychiatry : the journal of the Association of European Psychiatrists·2026
Same author

Thyroid autoimmunity in relation to islet autoantibodies in newly diagnosed type 1 diabetes mellitus in children and adolescents.

Frontiers in endocrinology·2026
Same author

Engineered Akkermansia muciniphila extracellular vesicles for targeted delivery of miR-21-5p alleviate postmenopausal osteoporosis via PI3K-AKT pathway.

Journal of nanobiotechnology·2026
Same author

Interpretability and performance of a 3D C-vit model for accurate grading of pediatric brain tumors.

Frontiers in oncology·2026
Same journal

Correction: Jiang et al. Methods for Obtaining One Single Larmor Frequency, Either <i>v</i><sub>1</sub> or <i>v</i><sub>2</sub>, in the Coherent Spin Dynamics of Colloidal Quantum Dots. <i>Nanomaterials</i> 2023, <i>13</i>, 2006.

Nanomaterials (Basel, Switzerland)·2026
Same journal

Correction: Ekman et al. Synthesis, Characterization, and Adsorption Properties of Nitrogen-Doped Nanoporous Biochar: Efficient Removal of Reactive Orange 16 Dye and Colorful Effluents. <i>Nanomaterials</i> 2023, <i>13</i>, 2045.

Nanomaterials (Basel, Switzerland)·2026
Same journal

Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-Based Materials and Coatings for De-Icing and Defogging of Wind Turbine Blades: Materials Basis, Structural Design, Engineering Integration, and Future Opportunities.

Nanomaterials (Basel, Switzerland)·2026
Same journal

Influence of the Ripeness Stages of the Precursors on the Optical Characteristics of Carbon Dots Obtained from Valencia Orange Peels (<i>Citrus sinensis</i> L. Osbeck) by Hydrothermal Synthesis.

Nanomaterials (Basel, Switzerland)·2026
Same journal

Insights into ALD Growth of Al-Based Dielectric Stack on 4H-SiC.

Nanomaterials (Basel, Switzerland)·2026
Same journal

Metal-<i>N</i>-Heterocyclic Carbene Porous Organic Polymers as Efficient Bifunctional Water-Splitting Electrocatalysts.

Nanomaterials (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: May 13, 2026

Scalable Stamp Printing and Fabrication of Hemiwicking Surfaces
06:16

Scalable Stamp Printing and Fabrication of Hemiwicking Surfaces

Published on: December 18, 2018

A Novel Dual-Gradient Patterned Wettability Current Collector for Passive DMFCs.

Yingli Zhu1, Leyao Ban1, Yingying Jing1

  • 1School of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.

Nanomaterials (Basel, Switzerland)
|May 12, 2026
PubMed
Summary
This summary is machine-generated.

Novel current collectors with dual-gradient patterned wettability improve direct methanol fuel cell (DMFC) performance by efficiently removing water and CO2 bubbles. This design enhances power density and long-term stability for passive DMFC applications.

Keywords:
current collectordirect methanol fuel cellsdual-gradient wettabilitygas–liquid managementmass transfer

More Related Videos

Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells
11:24

Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells

Published on: July 1, 2018

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

Related Experiment Videos

Last Updated: May 13, 2026

Scalable Stamp Printing and Fabrication of Hemiwicking Surfaces
06:16

Scalable Stamp Printing and Fabrication of Hemiwicking Surfaces

Published on: December 18, 2018

Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells
11:24

Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells

Published on: July 1, 2018

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Conversion

Background:

  • Direct methanol fuel cells (DMFCs) are promising for portable electronics due to high energy density and rapid refueling.
  • Passive DMFCs face mass transport limitations, specifically cathode water flooding and anode CO2 bubble blockage, hindering practical application.
  • Current collectors (CCs) play a crucial role in managing these transport issues.

Purpose of the Study:

  • To design and evaluate a novel dual-gradient patterned wettability current collector (CC) for DMFCs.
  • To alleviate mass transport impedance by creating a self-driven mechanism for water and CO2 bubble removal.
  • To improve the overall performance and stability of passive DMFCs.

Main Methods:

  • Designed a dual-gradient patterned wettability CC integrating wedge-shaped and surface energy gradients.
  • Developed a mathematical model to quantitatively assess the dual-gradient structure's effects.
  • Optimized fabrication parameters on 316 L stainless steel using laser scanning and low-surface-energy agents.
  • Conducted electrochemical performance tests and electrochemical impedance spectroscopy (EIS) on passive DMFCs.

Main Results:

  • Optimized CCs significantly improved passive DMFC performance, increasing peak power density by 15.6% (anode) and 14.5% (cathode) at 1 mol·L−1 methanol.
  • EIS revealed substantial reductions in mass transfer resistance: 31.4% for the anode CC and 31.9% for the cathode CC.
  • The new cells demonstrated enhanced long-term stability over 18 hours of continuous discharge.
  • Specific wettability patterns were identified as optimal for cathode water removal (hydrophobic periphery, hydrophilic air-side) and anode CO2 removal (inverted pattern).

Conclusions:

  • The proposed dual-gradient wettability design effectively addresses mass transport limitations in passive DMFCs.
  • The optimized CCs enhance gas-liquid self-driven efficiency, leading to improved power density and stability.
  • This wettability engineering approach offers a promising strategy for developing more robust and efficient passive DMFCs.