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Palladium-hydrogen electrode

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432: 308: 162: 181: 321:. This potential is independent of the amount of hydrogen absorbed over a wide range. This property has been utilized in the construction of a palladium/hydrogen 84: 473: 325:. The main feature of such electrode is an absence of non-stop bubbling of molecular hydrogen through the solution as it is absolutely necessary for the 507: 502: 466: 343: 318: 326: 33: 363: 338: 459: 313:
When palladium is electrochemically charged by hydrogen, the existence of two phases is manifested by a constant
303:{\displaystyle E=E^{0}+{RT \over F}\ln {a_{\mathrm {H} ^{+}} \over ({\frac {p_{\mathrm {H} 2}}{p^{0}}})^{1/2}}} 404: 172: 418: 492: 322: 25: 497: 64: 439: 29: 431: 443: 44:
has one significant feature—the capability to absorb (dissolve into itself) molecular
486: 157:{\displaystyle {\tfrac {1}{2}}\mathrm {H} _{2}=\mathrm {H} _{ads}=\mathrm {H} _{abs}} 393: 60:
alpha-phase at hydrogen concentration less than 0.025 atoms per atom of palladium
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O ions in solution parallels the behaviour of palladium with molecular hydrogen
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The electrochemical behaviour of a palladium electrode in equilibrium with H
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A palladium-hydrogen probe electrode for use as a microreference electrode
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Thus the equilibrium is controlled in one case by the partial pressure or
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Two phases can coexist in palladium when hydrogen is absorbed:
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beta-phase at hydrogen concentration corresponding to the
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Palladium-hydrogen electrodes for coulometric titration
89: 184: 87: 364:"Operation principle of Pd/H2 reference electrode" 302: 156: 32:. Most of its characteristics are similar to the 467: 8: 171:of molecular hydrogen and in other case—by 474: 460: 287: 283: 271: 257: 256: 250: 238: 233: 231: 225: 204: 195: 183: 142: 137: 121: 116: 106: 101: 88: 86: 317:of approximately +50 mV compared to the 355: 7: 428: 426: 258: 234: 138: 117: 102: 14: 430: 280: 247: 1: 344:Reversible hydrogen electrode 319:reversible hydrogen electrode 446:. You can help Knowledge by 18:palladium-hydrogen electrode 327:standard hydrogen electrode 34:standard hydrogen electrode 524: 425: 339:Dynamic hydrogen electrode 175:of H-ions in solution. 24:) is one of the common 508:Electrochemistry stubs 442:-related article is a 304: 158: 503:Hydrogen technologies 305: 159: 30:electrochemical study 182: 85: 26:reference electrodes 419:Electrochimica Acta 323:reference electrode 52:Electrode operation 20:(abbreviation: Pd/H 300: 154: 98: 65:non-stoichiometric 455: 454: 298: 277: 217: 97: 515: 476: 469: 462: 440:electrochemistry 434: 427: 407: 402: 396: 391: 385: 384: 382: 381: 375: 369:. Archived from 368: 360: 309: 307: 306: 301: 299: 297: 296: 295: 291: 278: 276: 275: 266: 265: 261: 251: 245: 244: 243: 242: 237: 226: 218: 213: 205: 200: 199: 163: 161: 160: 155: 153: 152: 141: 132: 131: 120: 111: 110: 105: 99: 90: 523: 522: 518: 517: 516: 514: 513: 512: 483: 482: 481: 480: 423: 416: 411: 410: 403: 399: 392: 388: 379: 377: 373: 366: 362: 361: 357: 352: 335: 279: 267: 252: 246: 232: 227: 206: 191: 180: 179: 136: 115: 100: 83: 82: 77: 70: 54: 23: 12: 11: 5: 521: 519: 511: 510: 505: 500: 495: 485: 484: 479: 478: 471: 464: 456: 453: 452: 435: 415: 414:External links 412: 409: 408: 397: 386: 354: 353: 351: 348: 347: 346: 341: 334: 331: 311: 310: 294: 290: 286: 282: 274: 270: 264: 260: 255: 249: 241: 236: 230: 224: 221: 216: 212: 209: 203: 198: 194: 190: 187: 165: 164: 151: 148: 145: 140: 135: 130: 127: 124: 119: 114: 109: 104: 96: 93: 75: 72: 71: 68: 61: 53: 50: 21: 13: 10: 9: 6: 4: 3: 2: 520: 509: 506: 504: 501: 499: 496: 494: 491: 490: 488: 477: 472: 470: 465: 463: 458: 457: 451: 449: 445: 441: 436: 433: 429: 424: 421: 420: 413: 406: 401: 398: 395: 390: 387: 376:on 2011-07-20 372: 365: 359: 356: 349: 345: 342: 340: 337: 336: 332: 330: 328: 324: 320: 316: 292: 288: 284: 272: 268: 262: 253: 239: 228: 222: 219: 214: 210: 207: 201: 196: 192: 188: 185: 178: 177: 176: 174: 170: 149: 146: 143: 133: 128: 125: 122: 112: 107: 94: 91: 81: 80: 79: 66: 62: 59: 58: 57: 51: 49: 47: 43: 39: 35: 31: 27: 19: 448:expanding it 437: 422: 417: 400: 389: 378:. Retrieved 371:the original 358: 312: 166: 73: 55: 17: 15: 67:formula PdH 493:Electrodes 487:Categories 380:2009-11-07 350:References 498:Palladium 315:potential 223:⁡ 42:palladium 333:See also 173:activity 169:fugacity 46:hydrogen 38:platinum 28:used in 40:). But 36:(with 438:This 374:(PDF) 367:(PDF) 444:stub 16:The 69:0.6 489:: 329:. 220:ln 48:. 475:e 468:t 461:v 450:. 383:. 293:2 289:/ 285:1 281:) 273:0 269:p 263:2 259:H 254:p 248:( 240:+ 235:H 229:a 215:F 211:T 208:R 202:+ 197:0 193:E 189:= 186:E 150:s 147:b 144:a 139:H 134:= 129:s 126:d 123:a 118:H 113:= 108:2 103:H 95:2 92:1 76:3 22:2

Index

reference electrodes
electrochemical study
standard hydrogen electrode
platinum
palladium
hydrogen
non-stoichiometric
fugacity
activity
potential
reversible hydrogen electrode
reference electrode
standard hydrogen electrode
Dynamic hydrogen electrode
Reversible hydrogen electrode
"Operation principle of Pd/H2 reference electrode"
the original
A palladium-hydrogen probe electrode for use as a microreference electrode
Palladium-hydrogen electrodes for coulometric titration
Electrochimica Acta
Stub icon
electrochemistry
stub
expanding it
v
t
e
Categories
Electrodes
Palladium

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