Hydrogen has emerged as an environmentally attractive fuel and a promising energy carrier for future applications to meet the ever-increasing energy challenges. The safe and efficient storage and release of hydrogen remain a bottleneck for realizing the upcoming hydrogen economy. Hydrogen storage based on liquid-phase chemical hydrogen storage materials is one of the most promising hydrogen storage techniques, which offers considerable potential for large-scale practical applications for its excellent safety, great convenience, and high efficiency. Recently, nanopore-supported metal nanocatalysts have stood out remarkably in boosting the field of liquid-phase chemical hydrogen storage. Herein, the latest research progress in catalytic hydrogen production is summarized, from liquid-phase chemical hydrogen storage materials, such as formic acid, ammonia borane, hydrous hydrazine, and sodium borohydride, by using metal nanocatalysts confined within diverse nanoporous materials, such as metal-organic frameworks, porous carbons, zeolites, mesoporous silica, and porous organic polymers. The state-of-the-art synthetic strategies and advanced characterizations for these nanocatalysts, as well as their catalytic performances in hydrogen generation, are presented. The limitation of each hydrogen storage system and future challenges and opportunities on this subject are also discussed. References in related fields are provided, and more developments and applications to achieve hydrogen energy will be inspired.

Nanopore-Supported Metal Nanocatalysts for Efficient Hydrogen Generation from Liquid-Phase Chemical Hydrogen Storage Materials

Recent advances in liquid-phase chemical hydrogen storage

Serious environmental problems, growing demand for energy, and the pursuit of environmental‐friendly, sustainable, and effective energy technologies to store and transform clean energy have all drawn great attention recently. As a part of the special issue “Energy Research in National Institute of Advanced Industrial Science and Technology (AIST)” this review systematically summarizes the research progress of metal–organic framework (MOF) composites and derivatives in energy applications, including catalytic CO oxidation, liquid‐phase chemical hydrogen storage, and electrochemical energy storage and conversion. Furthermore, the correlation between MOF‐based structures, synthetic strategies, and their corresponding performances is carefully discussed. The further scope and opportunities, expected improvements and challenges are also discussed. This review will not only benefit development of more feasible protocols to fabricate nanostructures for energy systems but also stimulate further interest in MOF composites and derivatives, for energy applications.

Metal–Organic Frameworks for Energy

Production of Liquid Solar Fuels and Their Use in Fuel Cells

Formic acid (HCOOH), with a hydrogen capacity of 4.3 wt%, has attracted increasing interest in the utilization as a promising H2 carrier. The CO2HCOOH cycle is believed to be a simple and environmental friendly process for the charge and discharge of H2. In this review, the state‐of‐the‐art technologies and recent results of the heterogeneously catalyzed dehydrogenation of formic acid are summarized. Based on these achievements, future outlooks for improving this system for practical applications are proposed.

Formic Acid‐Based Liquid Organic Hydrogen Carrier System with Heterogeneous Catalysts

Bimetallic AgPd nanoparticles were successfully immobilized on graphitic carbon nitride (g-C3N4) functionalized SBA-15 for the first time by a facile co-reduction method. These catalysts were applied in the decomposition of formic acid. The dehydrogenation of formic acid is dependent on the composition of AgPd and the content of carbon nitride (CN). Among all of the AgPd/mCND/SBA-15 catalysts tested, the Ag10Pd90/0.2CND/SBA-15 catalyst exhibits highly superior performance for the decomposition of formic acid into high-quality hydrogen at 323 K with 100% hydrogen selectivity and a turnover frequency of 893 h−1, which is among the maximum values obtained at 323 K in this paper. The improved performance is a promising step towards the utilization of formic acid as a hydrogen storage material.

Efficient hydrogen generation from formic acid using AgPd nanoparticles immobilized on carbon nitride-functionalized SBA-15

The invention discloses a method for formate dehydrogenation under catalysis of a supported Ag-Pd/C3N4 nano-catalyst and belongs to the technical fields of chemistry and chemical engineering. The well-prepared supported Ag-Pd/C3N4 nano-catalyst is put in a reactor, the reactor is put in an oil bath and heated to a certain temperature, a mixed solution of formic acid and sodium formate is added to the reactor for a reaction, and generated hydrogen is collected with a drainage method. The supported Ag-Pd/C3N4 nano-catalyst is prepared as follows: a solution is prepared from Ag and Pd in a certain mole ratio, a carrier C3N4 is added to the solution, a reducer is added to the mixed solution, and filtration and drying are performed. Compared with conventional supported catalysts, the high-activity and high-selectivity supported Ag-Pd/C3N4 nano-catalyst used for formate dehydrogenation to prepare hydrogen can be prepared by adjusting the content of Ag, Pd and C3N4.

Method for formate dehydrogenation under catalysis of supported Ag-Pd/C3N4 nano-catalyst

The invention discloses a method for catalyzing formic acid for dehydrogenation by use of a supported Au-Pd/mpg-C3N4 nano-catalyst and belongs to the technical field of chemistry and chemical engineering. The method comprises the following steps: placing the well prepared supported Au-Pd/mpg-C3N4 nano-catalyst into a reactor; placing the reactor in an oil bath; heating up to a certain temperature; adding a formic acid and sodium formate mixed solution into the reactor for reaction; collecting generated hydrogen by the drainage method. The supported Au-Pd/mpg-C3N4 nano-catalyst is prepared in such a way that Au, Pd and deionized water are configured according to a certain molar ratio, a supporter mpg-C3N4 is added into the obtained solution, a reducing agent is added into the obtained mixed solution, and filtering and drying are performed. Compared with the traditional supported catalyst, the supported Au-Pd/mpg-C3N4 nano-catalyst which is high in activity and selectivity and used for manufacturing hydrogen by formic acid dehydrogenation is only prepared in such a way that the contents of metal gold and palladium in the catalyst and the content of mpg-C3N4 are adjusted.

Method for catalyzing formic acid for dehydrogenation by use of supported Au-Pd/mpg-C3N4 nano-catalyst

The invention discloses a method for catalyzing hydrazine hydrate dehydrogenation with a RhNiFe/CeO2@C3N4 nanometer catalyst, and belongs to the technical fields of chemistry and chemical industry. A prepared nanometer catalyst is put in a reactor, the reactor is put in an oil bath, the temperature is raised to a certain degree, then a mixed solution of hydrazine hydrate and sodium hydroxide is added into the reactor for a reaction, and the produced hydrogen is collected through drainage. The nanometer catalyst is synthesized through the following steps: a) mixing cerium nitrate and a melamine solution according to a certain mass ratio till cerium nitrate is dissolved; b) stirring the obtained mixed solution till the solution is dried, and transferring the obtained product to a tubular furnace for calcination to obtain a CeO2@C3N4 carrier; and c) putting the CeO2@C3N4 carrier obtained from calcination in a solution containing Rh, Ni, and Fe with a certain ratio, performing full stirring, adding a reductant to the obtained mixed solution, and performing filtration and drying. The RhNiFe/CeO2@C3N4 nanometer catalyst has excellent activity and selectivity. The catalyst is adopted in a hydrazine hydrate dehydrogenation reaction, the dehydrogenation conversion rate and the selectivity can reach 100%, and the reaction TOF value is more than 720 h .

Method for catalyzing hydrazine hydrate dehydrogenation with RhNiFe/CeO2@C3N4 nanometer catalyst

The invention discloses a method for catalyzing hydrazine hydrate dehydrogenation through a RhNiCo/CeO2@C3N4 nano catalyst, and belongs to the technical field of chemistry and chemical engineering. The method comprises the steps that the prepared RhNiCo/CeO2@C3N4 nano catalyst is placed in a reactor, the reactor is placed in an oil bath, heating is conducted to be a certain temperature, hydrazine hydrate and sodium hydroxide mixed liquor is added into the reactor for reacting, and generated hydrogen is collected through a drainage method. The RhNiCo/CeO2@C3N4 nano catalyst has high activity and selectivity. The catalyst is used for a hydrazine hydrate dehydrogenation reaction, the hydrate dehydrogenation conversion rate and the selectivity are both 100%, and the TOF value of the reaction is larger than 650 h .

Method for catalyzing hydrazine hydrate dehydrogenation through RhNiCo/CeO2@C3N4 nano catalyst

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Cui Ping

Author Tools

Chat about Author