Advances in the production technology of hydrogen peroxide

The Direct Synthesis of Hydrogen Peroxide Over Supported Pd-Based Catalysts: An Investigation into the Role of the Support and Secondary Metal Modifiers

“…Furthermore, due to the low stability of H 2 O 2 , decomposing readily to H 2 O at relatively mild temperatures or under an alkali pH, the use of acidic stabilizing agents is common [3]. While such additives prolong the shelf life of H 2 O 2 they can promote reactor corrosion, decrease catalyst lifetime and necessitate the use of additional purification steps to remove such impurities from product streams, with the associated costs passed on to the end user [4].…”

The degradation of phenol via in situ H2O2 production over supported Pd-based catalysts

“…9 While effective in promoting H 2 O 2 stability, the presence of such agents not only lead to reactor corrosion but also present a hazard to human and aquatic life. 10 As such, if such processes were adopted for potable water treatment additional costly purification steps would be required to ensure their removal prior to the discharge of the treated water.…”

Valence State Modulation of Chromium in Selective Hydrogen Peroxide Production Electrocatalysts

“…Currently, there are two dominating pathways for industrial manufacture of a large amount of highpurity H 2 O 2 , including the anthraquinone method and the direct synthesis of H 2 O 2 (DSHP) route. 4,5 However, the process of the anthraquinone method involves the hydrogenation of anthraquinone and the subsequent oxidation of anthrahydroquinone as well as the distillation process, which needs various procedures and high energy consumption. 6−8 Meanwhile, plenty of waste chemicals generated in this process will give rise to irreparable harm to the ecosystem.…”

“…Due to the current grave circumstances of COVID-19, hydrogen peroxide (H 2 O 2 ) has become a significant chemical substance that is indispensable and in huge demand in the aspects of sterilization and disinfection for preventing COVID-19. − Therefore, the low-cost and effective preparation of H 2 O 2 is still a vital task. Currently, there are two dominating pathways for industrial manufacture of a large amount of high-purity H 2 O 2 , including the anthraquinone method and the direct synthesis of H 2 O 2 (DSHP) route. , However, the process of the anthraquinone method involves the hydrogenation of anthraquinone and the subsequent oxidation of anthrahydroquinone as well as the distillation process, which needs various procedures and high energy consumption. − Meanwhile, plenty of waste chemicals generated in this process will give rise to irreparable harm to the ecosystem. , In opposite, the DSHP route from hydrogen (H 2 ) and oxygen (O 2 ) avoids the cumbersome process. Although the route is straightforward and economical, there is a risk of the explosion of H 2 and O 2 under certain conditions. , From these perspectives, these shortcomings have triggered the urgent demand to exploit sustainable and alternative strategies.…”