Results 121 to 130 of about 27,101 (268)

Benzoquinone-Hydroquinone Couple for Flow Battery

, 2016
At present, there is an ongoing search for approaches toward the storage of energy from intermittent renewable sources like wind and solar. Flow batteries have gained attention due to their potential viability for inexpensive storage of large amounts of ...
Aziz, Michael, Huskinson, Brian Thomas, Nawar, Saraf   +2 more
core   +1 more source

KINETICS AND MECHANISM OF AERIAL OXIDATION OF HYDROQUINONE IN A DEVELOPER SOLUTION AND DETERMINATION OF DEVELOPER'S HALF-LIFE AT 20°C [PDF]

Journal of Sciences, Islamic Republic of Iran, 1995
The aerial oxidation of hydroquinone in a freshly prepared developer solution at 20°C has been studied through the measurement of concentration changes by a spectrophotometric method. The concentration of consumed hydroquinone is directly proportional to
doaj  

Crataegus oxyacantha Extract Enhances Cardiac Adaptation and Reduces Oxidative‐Inflammatory Stress in Broiler Chickens Raised at High Altitude Under Cold Stress

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
Crataegus oxyacantha extract at 0.4 mL/L improved cardiac function in broilers under cold stress and high altitude by increasing nitric oxide synthase gene expression, boosting nitric oxide, reducing endothelin‐1 gene expression, and lowering oxidative‐inflammatory stress, offering a natural solution to mitigate pulmonary hypertension syndrome ...
Behnam Ahmadipour, Hossein Hassanpour, Samira Abaszadeh, Majid Kalantar   +3 more
wiley   +1 more source

Redox‐Active Guanidines

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
Redox‐active guanidines, comprising guanidino‐functionalized aromatics (GFAs) and redox‐active urea azines (RAAs), are electron donors and strong Lewis and Brønsted bases that are used in several applications. They act as redox‐active ligands in bistable coordination compounds and as reagents in dehydrogenative coupling reactions and proton‐coupled ...
Hans‐Jörg Himmel
wiley   +1 more source

Qualitative and Quantitative Estimation of Hydroquinone in Skin Whitening Cosmetics

, 2012
Hydroquinone has been used for decades as a skin lightening agent. Its use in cosmetics has been banned as a result of skin problems including contact dermatitis and ochronosis.
Zeeshan Ali, Saima Siddique, Zahida Parveen, Muhammad Zaheer   +3 more
core  

Electrode kinetic studies of the hydroquinone-benzoquinone system and the reaction between hydroquinone and ammonia in propylene carbonate: Application to the indirect electroanalytical sensing of ammonia

, 2007
The oxidation of hydroquinone and reduction of benzoquinone have been studied by cyclic voltammetry at glassy carbon electrodes in propylene carbonate. Diffusion coefficients of the different species obtained from chronoamperometric measurements with use
Wain, A., Silvester, Debbie, Compton, RG, Banks, C., Ji, X, Ji, X., Silvester, DS, Compton, R., Banks, CE, Wain, AJ, Compton, Richard   +10 more
core   +1 more source

Rare‐Metal‐Free Redox‐Mediated Zn–Air Rechargeable Battery (ReZARB): A Redox‐Mediated Approach for Reducing Charging Overpotentials

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
A three‐electrode Zn–air/Zn–hydroquinone (HQ) electrochemical cell employing a rare‐metal‐free oxygen reduction reaction catalyst and HQ as a redox mediator in the electrolyte can realize a rechargeable battery with significantly reduced charge–discharge overpotential compared to conventional Zn–air battery systems.
Kosuke Ishibashi, Yutaro Hirai, Hiroshi Yabu   +2 more
wiley   +1 more source

Analysis of Hydroquinone in Face Whitening Cream by UV-Vis Spectrophotometry and GC-MS Spectrometry

Indonesian Journal of Chemical Research
The analytical method to determine the compound content in both food and cosmetic products must be carried out carefully to ensure the validity of the analysis results.
Karnelasatri Karnelasatri, Candra Yulius Tahya, Mahda Uli Adila, Junius Hardy, Sri Wahyu Ningsih Munthe   +4 more
doaj  

Structural controls on the catalytic polymerization of hydroquinone by birnessites

, 2011
The role of Mn oxide in the abiotic formation of humic substances has been well demonstrated. However, information on the effect of crystal structure and surface-chemical characteristics of Mn oxide on this process is limited.
Feng, Xionghan, Liu, Ming-Ming, Cao, Xing-Hui, Chen, Xiu-Hua, Qiu, Guo-Hong, Tan, Wenfeng, Liu, Fan   +6 more
core   +1 more source

Electrode Kinetic Studies of the Hydroquinone−Benzoquinone System and the Reaction between Hydroquinone and Ammonia in Propylene Carbonate:  Application to the Indirect Electroanalytical Sensing of Ammonia

, 2016
The oxidation of hydroquinone and reduction of benzoquinone have been studied by cyclic voltammetry at glassy carbon electrodes in propylene carbonate. Diffusion coefficients of the different species obtained from chronoamperometric measurements with use
Debbie S. Silvester (1760854), Andrew J. Wain (1703971), Xiaobo Ji (1504126), Craig E. Banks (1375245), Richard G. Compton (1417648)   +4 more
core   +1 more source