Facile Synthesis of Nanoporous Transition Metal‐Based Phosphates for Oxygen Evolution Reaction

Bhanja, Piyali; Kim, Yena; Paul, Bappi; Lin, Jianjian; Alshehri, Saad M.; Ahamad, Tansir; Kaneti, Yusuf Valentino; Bhaumik, Asim; Yamauchi, Yusuke

doi:10.1002/cctc.201901803

Cited by 124 publications

(67 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[110] Currently, the OER performance and reaction mechanism of a series of transition metal phosphates and borates based on Fe, Co, and Ni have been studied, especially in neutral or nearneutral media. [111][112][113]…”

Section: Transition Metal Phosphates/boratesmentioning

confidence: 99%

Structural Variations of Metal Oxide‐Based Electrocatalysts for Oxygen Evolution Reaction

et al. 2021

View full text Add to dashboard Cite

including solar, wind, hydro, and biofuel, are highly desired to reduce our reliance on fossil fuels. However, according to the data provided by International Energy Agency, the global energy demand is 120 Mtoe in 2019, most (80%) of which was derived from fossil fuels (coal, natural gas, oil), leading to a huge CO 2 emission (33Gt in 2019). [1][2][3] One of the difficulties hindering the widespread use of these renewable energy sources is their intermittent and unpredictable nature. [4,5] Electrochemical reaction, a promising strategy for converting intermittent electricity into chemical energy, can produce a wide variety of important fuels and chemical feedstock, including hydrogen, hydrocarbons and ammonia. [6][7][8] The feedstocks for these productions obtained from electrochemical reactions can be offered by abundant and universal source, such as water, carbon dioxide and nitrogen. In last decades, due to the net-zero carbon emission features, electrochemical reactions have initiated extensive investigations based on water splitting reaction, nitrogen reduction reaction (NRR) and carbon dioxide reduction reaction. [9][10][11][12] In these green technologies, electrocatalytic oxygen evolution reaction (OER), a core reaction of these process, has a direct impact on device efficiency and cost effectiveness (Figure 1). [13,14] However, OER involves multistep four-electron transferring steps associated with OH breaking and OO formations, thus suffering from sluggish kinetics and requiring a high energy loss (high potential). Therefore, efficient and stable OER electrocatalysts are required to make these renewable energy storage/conversion processes to be viable and scalable technologies. [15,16,221,222] The OER catalysts can be classified into two categories: [17,18] molecular catalysts for homogeneous system and solid catalysts for heterogeneous system. In the homogeneous catalytic system, the molecular catalysts and the electrolyte are in solution, and the OER takes place in the liquid phase. The performance of molecular OER catalysts can be explained and understood at a molecular level by many relatively simple spectroscopic physicochemical techniques. Based on the mechanistic understanding at a molecular level, their geometric and electronic properties are much easier to be fine-tuned to achieve optimum performance by careful selection of the metal ion and ligand environment. Despite all these advantages, molecular catalysts are still not appropriate to be used in practical Electrocatalytic oxygen evolution reaction (OER), an important electrode reaction in electrocatalytic and photoelectrochemical cells for a carbonfree energy cycle, has attracted considerable attention in the last few years. Metal oxides have been considered as good candidates for electrocatalytic OER because they can be easily synthesized and are relatively stable during the OER process. However, inevitable structural variations still occur to them due to the complex reaction steps and harsh working conditions of OER, thus impending the ...

show abstract

Section: Transition Metal Phosphates/boratesmentioning

confidence: 99%

Structural Variations of Metal Oxide‐Based Electrocatalysts for Oxygen Evolution Reaction

et al. 2021

View full text Add to dashboard Cite

show abstract

“…[8][9][10] With respect to renewable energy storage via water splitting, using cobalt or nickel phosphates or mixed cobalt-nickel phosphate (NiPO) for the oxygen evolution reaction presents an interesting alternative to classical catalysts for electrochemical water splitting. 11,12 The wide range of applications is complemented by the eld of nonlinear optics (NLO), where TMP materials are prepared via crystallization from high-temperature melts of phosphate salts and used for the production of coherent deep-UV light with wavelengths below 200 nm. 13 Synthetic phosphate salts are known for most transition metals.…”

mentioning

confidence: 99%

Facile synthesis of novel, known, and low-valent transition metal phosphates via reductive phosphatization

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In this case, it is very important to reduce the ineffective mining and utilization. In recent researches, non-noble metalbased high-performance electrocatalysts for HER, [311][312][313][314] OER, [315][316][317][318][319][320] and ORR [321][322][323][324][325] have aroused much attention, and these reports successfully reduced the cost of raw materials by nano-engineering. The development of Ir-based electrocatalysts can also refer to those synthetic procedures, or alloy with these non-noble metals to alleviate the Ir-content.…”

Section: Discussionmentioning

confidence: 99%

Iridium‐based electrocatalysts toward sustainable energy conversion

Huang

Zhao

2022

EcoMat

View full text Add to dashboard Cite

Electrocatalysis is an important branch in electrochemistry and also has a significant position in energy storage/conversion. Iridium (Ir)-based electrocatalysts show promise because of the inherent redox property. Considering the abundance and expensive cost of such noble metal, significant efforts have been made to rationally improve the electrochemical performance of Ir-based electrocatalysts during these years from the viewpoints of structural design and kinetic analysis. Most of the reports may aim to achieve high Ir atomic utilization with more exposed active sites, and both high electrochemical activity and durable stability are expected. In this case, Ir-based single atoms, nanostructures, and composites are reported with various electrocatalytic applications of water splitting (involving hydrogen evolution and oxygen evolution reaction) and other electrocatalytic oxidation reactions (involving hydrogen oxidation reaction, methanol oxidation reaction, ammonia oxidation reaction, and formic acid oxidation reaction) as well as other electrocatalytic reduction reactions (involving oxygen reduction reaction, carbon dioxide reduction reaction, and nitrogen reduction reaction). These works deserve to be discussed and this review article comprehensively summarized the most significant reports. We analyzed Ir-based electrocatalysts from the viewpoints of synthesis, structure, electrochemical property, and reaction mechanism. The challenges and outlooks in the future were also provided from the aspects of fundamental studies and industrial applications, which may attract more attention and provide new insight into the design of advanced Ir-based electrocatalysts with high performance.

show abstract

Facile Synthesis of Nanoporous Transition Metal‐Based Phosphates for Oxygen Evolution Reaction

Cited by 124 publications

References 33 publications

Structural Variations of Metal Oxide‐Based Electrocatalysts for Oxygen Evolution Reaction

Structural Variations of Metal Oxide‐Based Electrocatalysts for Oxygen Evolution Reaction

Facile synthesis of novel, known, and low-valent transition metal phosphates via reductive phosphatization

Iridium‐based electrocatalysts toward sustainable energy conversion

Contact Info

Product

Resources

About