Journal Guides3 min readUpdated Apr 9, 2026

Materials Cover Letter: What Editors Actually Need to See

Materials editors screen for scope clarity and section fit across a broad materials-science platform. A cover letter that names the section and states a clear materials result moves fastest.

By Senior Researcher, Chemistry
Author contextSenior Researcher, Chemistry. Experience with JACS, Angewandte Chemie, ACS Nano.View profile

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Journal context

Materials at a glance

Key metrics to place the journal before deciding whether it fits your manuscript and career goals.

Full journal profile
Impact factor3.2Clarivate JCR
Acceptance rate~50-60%Overall selectivity
Time to decision~70-100 days medianFirst decision
Open access APC~$1,800-2,200Gold OA option

What makes this journal worth targeting

  • IF 3.2 puts Materials in a visible tier — citations from papers here carry real weight.
  • Scope specificity matters more than impact factor for most manuscript decisions.
  • Acceptance rate of ~~50-60% means fit determines most outcomes.

When to look elsewhere

  • When your paper sits at the edge of the journal's stated scope — borderline fit rarely improves after submission.
  • If timeline matters: Materials takes ~~70-100 days median. A faster-turnaround journal may suit a grant or job deadline better.
  • If OA is required: gold OA costs ~$1,800-2,200. Check institutional agreements before submitting.
Working map

How to use this page well

These pages work best when they behave like tools, not essays. Use the quick structure first, then apply it to the exact journal and manuscript situation.

Question
What to do
Use this page for
Getting the structure, tone, and decision logic right before you send anything out.
Most important move
Make the reviewer-facing or editor-facing ask obvious early rather than burying it in prose.
Common mistake
Turning a practical page into a long explanation instead of a working template or checklist.
Next step
Use the page as a tool, then adjust it to the exact manuscript and journal situation.
Materials (MDPI) at a glance
Value
Impact Factor (JCR 2024)
~3.4
Acceptance rate
~40-50%
Desk rejection rate
~25-35%
Desk decision
~1-2 weeks
Publisher
MDPI
Key editorial test
Materials-science focus + correct section routing
Cover letter seen by reviewers
No

Quick answer: a strong Materials (IF ~3.4, ~40-50% acceptance) cover letter names the target MDPI section, states a clear materials-science result, and shows the submission is complete. The journal covers everything from metals to polymers to biomaterials, so the editor's first task is routing, help them do it without guessing.

What Materials Editors Screen For

Criterion
What They Want
Common Mistake
Section fit
Named MDPI section for correct routing
Writing a generic letter without specifying the target section
Materials focus
Paper is about materials science, not pure chemistry or physics
Framing work as chemistry or physics with no materials angle
Clear result
A specific materials-science result stated up front
Vague descriptions that do not identify what was found
Submission completeness
All files, figures, and supplementary materials included
Incomplete submissions that delay the fast MDPI workflow
Scope clarity
Editor can route the paper immediately without guessing
Broad descriptions that span multiple sections without clarity

What the official sources do and do not tell you

The official Materials pages describe the MDPI submission workflow and list section scopes, but they do not prescribe a specific cover-letter structure.

What the journal model does imply is clear:

  • the manuscript should be recognizably about materials, their properties, processing, or performance
  • the editor needs to know which section the paper targets
  • the letter should reduce friction in a fast editorial workflow

That means section selection and materials focus matter more here than novelty claims.

What the editor is really screening for

At triage, the academic editor is usually asking:

  • is this paper about materials science, or is it a chemistry or physics paper that happens to mention a material?
  • does it fit the section the author selected?
  • does the submission look complete enough to send to reviewers without extra back-and-forth?
  • is the contribution stated clearly enough to justify peer review?

A cover letter that answers these questions in the opening paragraph will clear triage fastest.

A practical template you can adapt

Dear Editor,

We submit the manuscript "[TITLE]" for consideration in the
[SECTION NAME] section of Materials.

This study addresses [specific materials-science problem]. We
show that [main result], with relevance to [application or
materials domain].

The manuscript fits Materials because it reports findings on
[material type or property] rather than purely fundamental
chemistry or physics. We selected the [SECTION NAME] section
because [one-sentence justification].

The work is original, not under consideration elsewhere, and
approved by all authors.

Sincerely,
[Name]

The section-naming sentence is the most important addition compared to a generic MDPI letter.

Mistakes that make these letters weak

  • never naming the target section, forcing the editor to route blindly
  • framing the paper as pure chemistry or pure physics with no materials angle
  • describing the study topic without stating what was found about the material
  • using high-impact novelty language instead of showing clear materials relevance
  • submitting a paper whose center of gravity is catalysis or device physics, not the material itself

These mistakes slow triage or lead to desk rejection.

What should drive the submission decision instead

Before polishing the letter further, confirm the journal fit. Materials is broad but explicitly materials-focused; papers whose real contribution is catalytic mechanism, device architecture, or fundamental physics will struggle regardless of letter quality. Check the journal's own author guidelines and browse recent papers in your target section to verify alignment.

Practical verdict

The strongest Materials cover letters are short, section-specific, and materials-focused. They tell the editor where to route the paper and what the materials contribution is.

So the useful takeaway is this: name your section, state the materials result, and keep the letter clean. A Materials cover letter framing check is the fastest way to pressure-test whether your framing already does that before submission.

In Our Pre-Submission Review Work with Manuscripts Targeting Materials

In our pre-submission review work with manuscripts targeting Materials, five cover letter patterns generate the most consistent desk rejections and routing delays, even when the materials data is technically solid.

Never naming the target section. Materials organizes its editorial structure around more than 20 sections spanning Biomaterials, Computational Materials Science, Construction and Building Materials, Electronic Materials and Devices, Metals and Alloys, Polymers, Porous Materials, and others. Each section has its own associate editors who receive only papers assigned to their area. A cover letter that submits "to Materials" without naming the section forces the managing editor to make a routing decision without authorial guidance, which slows processing and occasionally results in routing to the wrong section. The cover letter should name the specific section in its first sentence and provide one sentence explaining why the paper belongs there.

Framing the paper as chemistry or physics with no materials angle. Materials is a materials-science journal, not a general chemistry or condensed matter physics journal. A cover letter that describes synthesis of a novel compound, photocatalytic activity under visible light, or electronic band structure calculations without connecting these to a material's properties, processing, or performance in an application context is framing the paper as chemistry or physics. The materials angle must be explicit: what material is being characterized, what property of that material is being studied, and what does the result mean for how the material can be used or processed?

Overclaiming significance for a journal that evaluates soundness, not impact. MDPI journals, including Materials, do not evaluate manuscripts on the basis of perceived scientific significance or field-level impact. The editorial assessment is methodological: is the study well-designed, are the conclusions supported by the data, and is the work relevant to the journal's scope? A cover letter that opens with significance language ("this study makes a major contribution to the field of...") is using the wrong editorial criteria. The cover letter should demonstrate scope fit and methodological competence, not assert how important the work is.

Paper whose real contribution is catalytic mechanism or device physics. Materials scope includes catalytic and electronic materials, but the journal's primary focus is the material itself, not the catalysis mechanism or device architecture it enables. A cover letter for a study that spends three pages characterizing photocatalytic degradation kinetics, optimizing reaction conditions, and proposing a mechanistic pathway, with two pages describing the material that was synthesized, is presenting a catalysis paper with a materials component. Chemical Engineering Journal, Applied Catalysis B, or a catalysis-specific journal may be the more appropriate venue. The cover letter should confirm that the materials contribution is the primary advance, not a vehicle for an applied chemistry result.

Duplicate or boilerplate cover letter template not adapted to Materials scope. A cover letter that was written for another journal and has been adapted by changing only the journal name, or that uses the generic MDPI template without section-specific content, signals that the author has not invested effort in the submission. Editors at MDPI journals read many cover letters. The distinguishing factor between a letter that gets reviewed and one that gets returned for revision is whether it demonstrates knowledge of the journal's specific section structure and editorial model. One sentence naming the section and explaining the fit is sufficient; a generic one-paragraph description of the work is not.

A Materials cover letter framing check is the fastest way to verify that your framing meets the editorial bar before submission.

Submit Now If / Think Twice If

Submit to Materials if:

  • the paper's primary contribution is in materials science: characterization, processing, properties, or application of a defined material class
  • the specific MDPI section has been identified and the paper fits its recent publication record
  • the cover letter names the section and states the materials-science result in the first paragraph
  • the methodology is appropriate for a materials-science study: structural characterization, mechanical testing, thermal analysis, or equivalent materials-specific evaluation
  • the submission is complete with all required figures, supplementary materials, and declarations

Think twice if:

  • the primary contribution is catalytic mechanism, device architecture, or fundamental physics, where the material is a vehicle rather than the subject
  • Advanced Materials, ACS Nano, or another higher-impact materials journal is worth attempting first if the advance is significant
  • Journal of Materials Science or Materials Science and Engineering A would be a more precise scope fit for structural or mechanical materials work
  • the section fit is unclear because the work spans multiple materials domains without a clear primary contribution
  • the cover letter cannot distinguish the materials advance from a chemistry or physics paper in one direct sentence

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How Materials Compares for Cover Letter Strategy

Feature
Materials
Journal of Materials Science
Applied Materials Today
ACS Applied Materials and Interfaces
IF (JCR 2024)
~3.4
~3.8
~8.3
~8.3
Desk rejection
~25-35%
~35-45%
~40-50%
~55-65%
Cover letter emphasis
Materials-science focus + correct MDPI section routing
Structural, functional, and composite materials with broad scope
Applied materials science with device or technology relevance
Interface and surface engineering with application consequence
Best for
Broad materials science across sections, fast MDPI workflow
Wide-scope materials science with structural and mechanical focus
Applied materials with technology-enabling advance
Applied materials and interfaces with engineering consequence

Frequently asked questions

It should name the specific MDPI section and state what materials-science result the paper reports. The journal is broad, so the editor needs scope clarity immediately.

Writing a generic letter that never specifies which section of Materials the paper targets, or framing the work as pure chemistry or physics with no materials focus.

MDPI does not strictly mandate one, but submitting without a cover letter removes your best chance to frame scope and section fit for the handling editor.

Materials has an impact factor of approximately 3.4. Acceptance rates are generally in the 40 to 50 percent range, but desk rejection is common when the materials focus is unclear or the section choice is wrong.

References

Sources

  1. 1. Materials instructions for authors, MDPI.
  2. 2. Materials section list and scope, MDPI.
  3. 3. MDPI editorial process, MDPI.
  4. 4. Clarivate Journal Citation Reports (JCR 2024), Clarivate.

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