Subtopic Deep Dive

Chemical Hydrogen Storage
Research Guide

What is Chemical Hydrogen Storage?

Chemical hydrogen storage uses reversible chemical reactions in compounds like complex hydrides, liquid organic hydrogen carriers, and ammonia borane to store and release hydrogen under mild conditions.

This approach addresses volumetric density limitations of compressed hydrogen by binding H2 chemically in stable molecules. Key systems include complex hydrides (Orimo et al., 2007, 2194 citations) and non-interstitial hydrides via thermal decomposition (Grochala and Edwards, 2004, 1539 citations). Over 10,000 papers explore catalysts and regeneration for closed-loop cycles.

Curated Papers

Key Challenges

Why It Matters

Chemical hydrogen storage enables use of existing liquid fuel infrastructure for safe, high-density H2 transport in vehicles and power systems (Eberle et al., 2009). It supports decarbonization by integrating with fuel cells, as reviewed in global energy analyses (Staffell et al., 2018, 3532 citations). Applications include stationary power and ammonia-based systems (Valera-Medina et al., 2018, 2300 citations), reducing reliance on geological storage.

Key Research Challenges

Reversible Hydrogen Release

Achieving H2 desorption at mild temperatures (<100°C) without irreversible decomposition remains difficult. Complex hydrides require high temperatures for release (Orimo et al., 2007). Catalyst development for kinetics is ongoing (Grochala and Edwards, 2004).

Closed-Loop Regeneration

Regenerating spent carriers back to hydrogenated forms demands energy-efficient processes. Liquid organic carriers face hydrogenation challenges under mild conditions (Eberle et al., 2009). Economic viability hinges on scalable recycling (Staffell et al., 2018).

Catalyst Stability and Cost

Catalysts for hydrolysis or dehydrogenation degrade over cycles, limiting lifetimes. Non-noble metal alternatives are needed for scalability (Valera-Medina et al., 2018). Boron-based systems produce byproducts complicating purification.

Essential Papers

The role of hydrogen and fuel cells in the global energy system

Iain Staffell, Daniel Scamman, Anthony Velazquez Abad et al. · 2018 · Energy & Environmental Science · 3.5K citations

Hydrogen has been ‘just around the corner’ for decades, but now offers serious alternatives for decarbonising global heat, power and transport.

Strategies for Hydrogen Storage in Metal–Organic Frameworks

Jesse L. C. Rowsell, Omar M. Yaghi · 2005 · Angewandte Chemie International Edition · 2.4K citations

Abstract Increased attention is being focused on metal–organic frameworks as candidates for hydrogen storage materials. This is a result of their many favorable attributes, such as high porosity, r...

Ammonia for power

Agustín Valera-Medina, Hua Xiao, M Owen-Jones et al. · 2018 · Progress in Energy and Combustion Science · 2.3K citations

A potential enabler of a low carbon economy is the energy vector hydrogen. However, issues associated with hydrogen storage and distribution are currently a barrier for its implementation. Hence, o...

Complex Hydrides for Hydrogen Storage

Shin‐ichi Orimo, Yuko Nakamori, Jennifer R. Eliseo et al. · 2007 · Chemical Reviews · 2.2K citations

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplex Hydrides for Hydrogen StorageShin-ichi Orimo, Yuko Nakamori, Jennifer R. Eliseo, Andreas Züttel, and Craig M. JensenView Author Information Insti...

Fundamentals and advances in magnesium alloy corrosion

M. Esmaily, Jan‐Erik Svensson, S. Fajardo et al. · 2017 · Progress in Materials Science · 1.9K citations

There remains growing interest in magnesium (Mg) and its alloys, as they are the lightest structural metallic materials. Mg alloys have the potential to enable design of lighter engineered systems,...

A review of energy storage types, applications and recent developments

Seama Koohi‐Fayegh, Marc A. Rosen · 2019 · Journal of Energy Storage · 1.8K citations

Current and future role of Haber–Bosch ammonia in a carbon-free energy landscape

Collin Smith, Alfred K. Hill, Laura Torrente‐Murciano · 2019 · Energy & Environmental Science · 1.6K citations

The future of green ammonia as long-term energy storage relies on the replacement of the conventional CO<sub>2</sub>intensive methane-fed Haber–Bosch process by distributed and agile ones aligned t...

Reading Guide

Foundational Papers

Start with Eberle et al. (2009, 1595 citations) for chemical vs physical overview; Orimo et al. (2007, 2194 citations) for complex hydrides details; Grochala and Edwards (2004, 1539 citations) for decomposition thermodynamics.

Recent Advances

Staffell et al. (2018, 3532 citations) for system integration; Valera-Medina et al. (2018, 2300 citations) on ammonia power applications.

Core Methods

Core techniques: catalytic dehydrogenation, hydrolysis of boranes, thermal cycling of metal hydrides, with physisorption contrasts in MOFs (Rowsell and Yaghi, 2005).

How PapersFlow Helps You Research Chemical Hydrogen Storage

Discover & Search

Research Agent uses searchPapers('chemical hydrogen storage complex hydrides') to find Orimo et al. (2007, 2194 citations), then citationGraph to map 2000+ citing works on ammonia borane, and findSimilarPapers to uncover regeneration studies. exaSearch semantic queries like 'mild condition H2 release catalysts' surface 500+ recent papers beyond keywords.

Analyze & Verify

Analysis Agent runs readPaperContent on Eberle et al. (2009) to extract volumetric capacities, then verifyResponse with CoVe chain-of-verification against 10 similar papers for accuracy. runPythonAnalysis plots H2 release kinetics from extracted data using matplotlib, with GRADE scoring evidence strength on regeneration feasibility.

Synthesize & Write

Synthesis Agent detects gaps in catalyst stability across 50 papers via contradiction flagging, then Writing Agent uses latexEditText to draft reaction schemes, latexSyncCitations for 20 references, and latexCompile for publication-ready review. exportMermaid generates flowcharts of closed-loop cycles.

Use Cases

"Compare H2 release temperatures for ammonia borane vs complex hydrides in recent catalysts"

Research Agent → searchPapers + findSimilarPapers → Analysis Agent → runPythonAnalysis (pandas data aggregation, matplotlib temp plots) → researcher gets CSV of 30 compounds with stats + GRADE-verified comparison table.

"Write LaTeX review section on LOHC regeneration pathways"

Synthesis Agent → gap detection on 40 papers → Writing Agent → latexGenerateFigure (cycles), latexSyncCitations (Eberle 2009 et al.), latexCompile → researcher gets compiled PDF section with diagrams and synced refs.

"Find open-source codes for modeling chemical hydride thermodynamics"

Research Agent → paperExtractUrls on Orimo 2007 citers → Code Discovery → paperFindGithubRepo + githubRepoInspect → researcher gets 5 repos with DFT simulation code, inspected for H2 binding energies.

Automated Workflows

Deep Research workflow scans 100+ papers on chemical storage via searchPapers → citationGraph → structured report with H2 density benchmarks from Eberle et al. (2009). DeepScan applies 7-step CoVe analysis to verify claims in Grochala and Edwards (2004) against modern catalysts. Theorizer generates hypotheses for mild-condition regeneration from literature patterns.

Try Doxa for Chemical Hydrogen Storage Research

Frequently Asked Questions

What defines chemical hydrogen storage?

It involves chemical bonding of H2 in compounds like complex hydrides or liquid organic carriers for release via catalysis or hydrolysis under controlled conditions (Eberle et al., 2009).

What are main methods in this field?

Key methods include thermal decomposition of non-interstitial hydrides (Grochala and Edwards, 2004) and catalytic dehydrogenation of ammonia borane or LOHCs (Orimo et al., 2007).

What are key papers?

Foundational works: Orimo et al. (2007, 2194 citations) on complex hydrides; Eberle et al. (2009, 1595 citations) comparing chemical/physical solutions; recent: Staffell et al. (2018, 3532 citations) on energy systems.

What are open problems?

Challenges include low-temperature reversibility, byproduct management in hydrolysis, and cost-effective regeneration scaling beyond lab demos (Valera-Medina et al., 2018).