Global research direction on Pt and Pt based electro‐catalysts for fuel cells application between 1990 and 2019: A bibliometric analysis

Abstract

Summary Platinum catalysts for use in fuel cells have gained much attention because of their unique properties such as high catalytic activity and durability. They have enabled a number of different electro‐catalysts for diverse applications. Nanomaterials based platinum (Pt) electro‐catalysts for fuel cell applications have been largely explored and actively utilised to meet those alternate energy needs. This bibliometric analysis examines developments from 1990 to 2019 in the area of Pt electro‐catalysts for fuel cells. A total of 4674 documents were retrieved from two databases (Web of Science and Scopus) after eliminating duplicates with an author per article and article per author ratios of 1.79 and 0.559, respectively, while the collaborative index stood at 1.81. Rstudio software was used to process the retrieved data for bibliometric analysis. The information analysed using this software was annual research output, research by journal, research by countries, research directions, research collaboration index, and frequently used keywords. The analysis showed that studies on Pt based electro‐catalysts for fuel cell have continuously grown over the years with a positive correlation of (y = 0.669x2‐3.7983x + 2.9365; R2 = 0.9738) and leading electrochemical journals accounted for most publications on this subject. The study revealed that China and the USA with a contribution of 1339 articles (28.70%) and 593 articles (12.71%), respectively, dominated research in this field. This study clearly demonstrates the growing research in fuel cell and their use as alternate energy source, which will promote community and industry engagements as well as increase awareness of fuel cell technology.

Bibliometric Network Analysis of Trends in Cyclone Separator Research: Research Gaps and Future Direction

“…Analysis of the country collaboration map revealed a significant number of publications resulting from collaborative research between other regions of the world, which agrees with the findings of Ojemaye et al [50]. Furthermore, it is encouraging that most publications from countries and journal sources receive more attention regarding the number of citations and referrals.…”

“…This reason may not be distant from the reality that most advanced industries, institutions, research laboratories, and leading research centers in the world are found in developed countries [50,51]. Other contributing factors may include research grant opportunities, research and development (R&D) policies, technical progress factors, exchange program opportunities, and availability of state-of-the-art research facilities and environments in developed countries [50,51]…”

Native Ligand Carbonization Renders Common Platinum Nanoparticles Highly Durable for Electrocatalytic Oxygen Reduction: Annealing Temperature Matters

“…As one of the most promising energyconversion devices, proton-exchangemembrane fuel cells (PEMFCs) have been attracting much attention for many years. [1][2][3] It is known that the sluggish cathodic kinetics of the oxygen reduction reaction (ORR) greatly limits the conversion efficiency of PEMFCs. [4,5] To date, Pt (or Pt-based alloys) nanoparticles (NPs) loaded on a carbon support are still the most promising ORR catalysts due to their intrinsically high activity.…”

A novel triple‐cycle system based on high‐temperature proton exchange membrane fuel cell, thermoelectric generator, and thermally regenerative electrochemical refrigerator for power and cooling cogeneration

“…The fuel cell is deemed as an ultimate solution to solve the environment and energy crises due to its many advantages, such as high reliability and efficiency, no pollution and noise, and rapid response to load change 1 . Among various fuel cells (FCs), the low‐temperature proton exchange membrane FC (LT‐PEMFC) with a working temperature among 60°C~80°C is one of the most compatible choices in a natural environment 2 .…”