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Nanomaterials in Electrochemistry: Synthesis and Applications of Electrocatalysts

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: closed (20 May 2026) | Viewed by 1395

Special Issue Editor

School of Energy and Environment, Anhui University of Technology, Ma'anshan 243002, China
Interests: electrocatalysis; water splitting (HER/OER); nanostructured catalysts; amorphous/heterostructures; in situ/operando methods; DFT-guided design

Special Issue Information

Dear Colleagues,

Nanomaterials have transformed the field of electrocatalysis by enabling the precise control of composition, morphology, defects, and interfaces. This includes tuning activity, selectivity, and durability across key reactions such as water splitting (HER/OER), oxygen reduction, CO2 reduction, nitrogen reduction, and metal–air systems. As such, coupling rational synthesis with in-depth characterization and theory is essential to identify structure–function relationships and guide scalable catalyst design.

We invite you to contribute to this Special Issue “Nanomaterials in Electrochemistry: Synthesis and Applications of Electrocatalysts” in Nanomaterials. We welcome the submission of original research and review articles that align with the journal’s scope, particularly studies integrating advanced (in situ/operando) characterization and computational modeling (DFT/MD/ML). Submissions focused on alkaline, neutral, and acidic environments—ranging from fundamental mechanisms to device-level demonstrations—are also encouraged.

This Special Issue aims to (i) elucidate design principles linking nanoscale features (defects/strain, phase and heterointerfaces, single-/dual-atom sites, amorphous-crystalline hybrids) to catalytic metrics; (ii) showcase scalable, reproducible synthesis and electrode architectures (binder-free, conductive scaffolds and EDL engineering) relevant to practical operation and long-term stability; (iii) promote mechanism-focused studies using operando probes and microkinetic/DFT analyses; and (iv) chart future directions for earth-abundant, durable electrocatalysts. Representative topics include rational synthesis strategies; transition-metal chalcogenides/phosphides/nitrides/oxides/oxyhydroxides and high-entropy systems; interface/support effects; in situ/operando methods; data-driven discovery; and performance benchmarking in electrolysis and metal–air devices.

Dr. Jing Hu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanomaterials
  • electrocatalysis
  • rational synthesis
  • defect engineering
  • heterostructures
  • single-atom catalysts
  • in situ/operando characterization

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Published Papers (2 papers)

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Research

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9 pages, 2041 KB  
Communication
Precursor-Directed Thermal Synthesis of Copper Catalysts for Tunable CO2 to CH4 and C2H4 Conversion at Industrial Current Densities
by Hunter B. Vibbert, Luqman Azhari, Nathan Rafisiman, Emma Olson, Bing Tan and Nicholas G. Pavlopoulos
Nanomaterials 2026, 16(6), 386; https://doi.org/10.3390/nano16060386 - 23 Mar 2026
Viewed by 383
Abstract
Scalable copper catalysts for electrochemical CO2 reduction have been prepared through precursor-directed thermal synthesis, enabling tunable conversion to CH4 and C2H4 at industrial current densities. Thermal treatment of distinct copper precursor salts was found to yield nanostructured catalysts [...] Read more.
Scalable copper catalysts for electrochemical CO2 reduction have been prepared through precursor-directed thermal synthesis, enabling tunable conversion to CH4 and C2H4 at industrial current densities. Thermal treatment of distinct copper precursor salts was found to yield nanostructured catalysts with composition- and morphology-dependent selectivity, and high Faradaic efficiencies under flow conditions. This simple, low-cost process demonstrates that precursor chemistry can control active phase formation and product distribution, providing a practical route toward scalable CO2 electroreduction. Full article
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Review

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34 pages, 32077 KB  
Review
Rational Design of Hollow Nanostructures: Engineering the Cavity Microenvironment for Advanced Electrocatalysis
by Yong-Gang Sun, Xin Wang, Jian Xiong, Yi-Han Zhang, Jin-Yi Ding, Bo Peng, Yuan Gu, Yi-Cong Xie, Kang-Lin Zhang, Mao Yuan and Xi-Jie Lin
Nanomaterials 2026, 16(6), 360; https://doi.org/10.3390/nano16060360 - 15 Mar 2026
Viewed by 707
Abstract
Hollow nanostructures have emerged as a pivotal class of nanomaterials in electrocatalysis, offering intrinsic advantages such as high surface-to-volume ratios, reduced density, and economical utilization of precious metals. However, the prevailing research paradigm has predominantly focused on the external shell characteristics while overlooking [...] Read more.
Hollow nanostructures have emerged as a pivotal class of nanomaterials in electrocatalysis, offering intrinsic advantages such as high surface-to-volume ratios, reduced density, and economical utilization of precious metals. However, the prevailing research paradigm has predominantly focused on the external shell characteristics while overlooking the decisive role of the interior cavity microenvironment. This review introduces a novel conceptual framework that positions the rational engineering of the cavity microenvironment—encompassing mass transport dynamics, localized electronic structure modulation, active site exposure, and structural stability—as a unified design principle for next-generation electrocatalysts. We systematically elucidate how precise control over cavity geometry, composition, and interfacial properties can optimize electrocatalytic performance for oxygen reduction (ORR), oxygen evolution (OER), and hydrogen evolution (HER) reactions. By correlating microenvironmental parameters with catalytic metrics, we establish structure–property–performance relationships and highlight recent breakthroughs. Finally, we outline future challenges in achieving atomic-level precision in cavity design, understanding dynamic evolution under operating conditions, and scaling up synthesis for industrial applications. Full article
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