1D/3D trepang-like N-modified carbon confined bimetal carbides and metal cobalt: boosting electron transfer via dual Mott-Schottky heterojunctions triggered built-in electric fields for efficient hydrogen evolution and tri-iodide reduction

Boosting catalytic performance of hierarchical Co/Co0.85Se microspheres via Mott-Schottky effect toward triiodide reduction and alkaline hydrogen evolution

• Hollow MoSe 2 -NiSe 2 nanotubes anchored on carbon nanotubes (MS-NS NTs@CNTs) are synthesized via in-situ hydrothermal method combined with an ultrasonication process. • The resultant MS-NS NTs@CNTs as a CE shows long term stability and excellent electrocatalytic activity. • Synergistic effects between conductive CNTs with bimetal selenide components enhance electrocatalytic activities and conductivity. • The DSSC fabricated with MS-NS NTs@CNTs CE exhibits a higher power conversion efficiency of 9.57% than Pt based device (PCE: 9.02%). The high cost, shortage, and instability of platinum (Pt) markedly hamper its commercialization in dye-sensitized solar cells (DSSCs). Consequently, developing efficient, stable, and economic electrode materials in lieu of noble Pt is of great current priority for DSSCs. In this work, a facile hydrothermal method followed by an ultrasonication process was utilized to synthesize the hollow MoSe 2 NiSe 2 nanotubes anchored on carbon nanotubes (denotes as MS-NS NTs@CNTs) and was developed as an efficient counter electrode (CE) in DSSCs. The resultant of MS-NS NTs@CNTs was characterized using XRD, FESEM, EDX, TEM, and N 2 adsorption-desorption. The combination of MS-NS NTs and CNTs provides more active sites, remarkable electric conductivity for rapid charge transfer, and an admirable catalytic property toward the reduction of triiodide. The DSSC with MS-NS NTs@CNTs achieves a high power conversion efficiency (PCE) of 9.57% and exceptional electrochemical durability with a remnant PCE of 8.69% after 72 h of illumination, better than Pt-based cell (PCE: 9.02%). These outcomes open a new avenue to fabricate low-cost electrocatalysts for their potential application in next-generation energy storage and conversion devices such as DSSCs, water splitting, fuel cells, and other electrochemical applications. 

Design of hierarchical MoSe2-NiSe2 nanotubes anchored on carbon nanotubes as a counter electrode for dye-sensitized solar cells

Surface Active-Site Engineering in NiCoSe2/Nitrogen-Doped Carbon Dodecahedrons for Efficient Triiodide Reduction in Photovoltaics

Hierarchical NiSe microspheres as high-efficiency counter electrode catalysts for triiodide reduction reaction

Oleic acid-mediated synthesis of small-sized and monodisperse NiSe2 nanowires as counter electrode catalysts for triiodide reduction

Developing high-efficiency counter electrode (CE) catalysts for the triiodide (I3–) reduction reaction (IRR) is of great significance for the development of cost-effective dye-sensitized solar cells (DSSCs). From the perspective of further enhancing the catalytic activity of CE catalysts by exposing more active sites, edge-active enriched MoS2 porous nanosheets are elaborately constructed using the as-prepared one-dimensional MoO3 rods and poly(vinylpyrrolidone) (PVP) as a template-directing agent and surfactant based on the dissolution–recrystallization strategy (MoS2-P), respectively, while the MoS2 quasi-particles (MoS2-C) and irregular MoS2 aggregations are also synthesized using cetyltrimethyl ammonium bromide (CTAB) as a surfactant and commercial MoO3 powder as a molybdenum source under similar reaction processes. Benefiting from the high specific surface area, exposure of edge active sites, and effective ion diffusion-favored structure, MoS2-P delivers good photovoltaic performance (PCE = 8.16%, Voc = 0.782 V, Jsc = 16.77 mA/cm2, FF = 0.62) when used as a CE catalyst for DSSCs, superior to that of MoS2-C (PCE = 6.87%, Voc = 0.741 V, Jsc = 15.91 mA/cm2, FF = 0.58), which is comparable with that of the Pt-based device (PCE = 8.33%, Voc = 0.775 V, Jsc = 16.85 mA/cm2, FF = 0.64). A series of electrochemical results further reveal that the obtained MoS2-P has good catalytic activity for the IRR and electrochemical stability in iodine-based electrolytes. Hence, our work may provide a promising catalyst for the energy conversion field. 

Edge-Active Enriched MoS2 Porous Nanosheets as Efficient Pt-Free Catalysts toward the Triiodide Reduction Reaction

The solution-processability of perovskite solar cells (PVSCs) reduces the production cost, but renders a multi-crystalline film with a large number of grain boundaries, which hinders the charge transport and induces...

Bridging the inter-grain charge transport via organic semiconductors for high-performance thickness-insensitive perovskite solar cells

Boosting hydrogen evolution and triiodide reduction via electronic coupling on (1T, 2H) MoS2/N-doped carbon dodecahedron

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.

Yuying Cao

Author Tools

Chat about Author